Arand Lenjan Steel Project Profile

Arand Lenjan Steel is built on a 10-hectare site and has started operations with an annual production capacity of 150,000 tonnes of steel sheet. The project began in 2022 with investment from Zarrin Foolad Shahriari Holding and came into operation in 2026. Total investment in launching Arand is about 6 trillion tomans, and the company has the potential to employ nearly 500 people. With the start of product sales, information on technical specifications, terms of sale and the price of Arand Lenjan Steel pre-painted sheet is also provided to customers through the company’s official channels.

Opening of the Ceremony and Invitation of Speakers

The ceremony opened with a recitation of verses from the Holy Quran and the national anthem of the Islamic Republic of Iran. The host then welcomed the guests and invited the speakers to the stage.

Speech by the Project Investor

Mr. Habibollah Shahriari, CEO of Zarrin Foolad Shahriari Holding and investor in the Arand Lenjan Steel project, spoke about production capacity, job creation and the company’s role in preventing foreign-currency outflow and creating export capacity. In part of his speech he said:

“With annual production of one hundred and fifty thousand tonnes of pre-painted sheet, Arand Steel can create direct and indirect employment for more than a thousand people, and in addition to preventing currency outflow, its surplus annual production can also bring good foreign-currency earnings to our beloved country.”

Speech by the Chairman of the Board of Arak Machine Manufacturing

Dr. Ebrahimi, representing the country’s industrial manufacturing sector and Arak Machine Manufacturing, spoke about the difficult conditions industry faces these days and the pressures on industrialists, while describing the future of industry as brighter than today. Referring to Lenjan’s position, he described the region as one of the country’s main steel hubs and expressed hope that Arand Steel will continue on its path to success.

Another part of his speech was devoted to Arand Steel’s environmental initiatives. Referring to what he had seen first-hand at the plant, Dr. Ebrahimi praised the efforts made to protect the environment and commended the choices and decisions made across the industrial complex. He also stressed that Arand Lenjan Steel should be a window to export markets and dedicate part of its capacity to markets outside the country.

Speech by the Commercial Director of Zarrin Foolad Shahriari Holding

Mr. Ehsan Shahriari, welcoming the guests, industry players and long-standing customers of Zarrin Foolad Shahriari Holding, thanked customers and partners for their many years of support and trust. He also referred to the round-the-clock efforts of the staff of Zarrin Foolad Shahriari and Arand Lenjan Steel over the past years and their perseverance in difficult conditions, and devoted part of his speech to the features of the production line and the company’s environmental measures and wastewater treatment plant.

In part of his speech he stressed: “I ask you to trust us and our new product, Arand Lenjan Steel pre-painted sheet, as you always have. This trust is more valuable to us than any capital.”

Unveiling of the Commemorative Plaque

Later in the ceremony, Habibollah Shahriari, CEO of Zarrin Foolad Shahriari Holding, together with his sons – Ehsan Shahriari, the holding’s Commercial Director; Mohsen Shahriari, Technical Director; and Peyman Shahriari, IT Director – joined a group of executives and officials on stage to unveil the commemorative plaque of the event.

Ribbon-Cutting and Start of the Production Line

After the plaque was unveiled, the company’s executives and guests went to the production line for the ribbon-cutting. A piece of the pre-painted sheet produced was placed at the start of the line so that attendees could sign it and write messages to mark the day. As the ribbon was cut, the Arand Lenjan Steel production line started running and the company officially entered production. Guests then toured the various sections of the line and saw the production process and the plant’s capabilities up close.

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These interviews, which had been temporarily suspended since March 2026, resumed on June 17, 2026. So far, of the 450 people who passed the written exam, two rounds of in-person interview invitations have been made: 55 people in the first round and 64 in the second.

Candidates are invited based on the company’s schedule, current needs, the job categories required and written exam results. Therefore not all candidates have been contacted yet, and this does not mean they have been eliminated, missed out or lost their chance of an interview.

Candidates who have not yet been contacted by the company should wait for official notification. Invitations to the remaining candidates are continuing as planned, and the company will contact them at the appointed time.

Arand Lenjan Steel Company thanks candidates for their cooperation and patience and emphasizes that recruitment is carried out with care, order and on the basis of merit. Candidates are asked not to follow up on their status by phone, in person or through any other channel, and to rely solely on the company’s official announcements.

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Common and Popular Sheet Patterns in Appliance Manufacturing

Patterned pre-painted sheets are used in the home appliance industry to combine beauty and durability. Despite the wide variety of these products, some types are generally more popular worldwide. One of the most common patterns is wood grain, used for refrigerator bodies, metal cabinets and some cookers. These patterns create visual warmth and make cold metal look like a decorative material. Stone patterns are also popular on appliance bodies; they are mostly used on washing machines and decorative panels and make an industrial look a little more luxurious.

Another group of patterned pre-painted sheets are textured sheets, which are produced by embossing the surface rather than printing an image; patterns such as leather, wave or fine grain resembling orange peel belong to this group. On home appliances these sheets show fewer scratches and also feel better to the touch.

Matte and semi-gloss finishes are also very popular in the minimalist designs of modern appliances. The combination of these techniques means pre-painted sheet is no longer just a protective coating but has become part of a product’s design language.

A technical point that may not be obvious at first is that the quality of these patterns depends on the resolution of the printing roller and the number of colors used. A high-quality wood pattern combines three to four colors to achieve depth and realism, whereas cheap versions are produced with a single brown and simple dark lines, and their artificial look is quickly noticeable.

Benefits of Patterned Pre-Painted Sheet in Refrigerator and Washing Machine Production

Using patterned pre-painted sheet in appliance production is not just an aesthetic choice; it also brings significant technical and economic benefits to manufacturers. The most important benefit is eliminating part of the painting process in appliance factories. Because the pattern and color have already been applied to the sheet, the manufacturer can have a product with a finished appearance ready for market once the parts are formed and assembled.

Another benefit of patterned pre-painted sheet in refrigerator and washing machine production is visual consistency across high volumes. With traditional painting methods, slight differences in color or surface quality may appear between products, but with pre-painted sheet the entire steel coil is produced under controlled conditions, so every product keeps a uniform appearance.

These sheets are also highly resistant to moisture, household detergents and temperature changes. Since refrigerators and washing machines are used in humid environments such as kitchens and bathrooms, the durability of the surface coating is especially important. The primer, paint and protective layers ensure the product body keeps its original appearance for years.

Another benefit relates to the product’s perceived value. Market experience shows that consumers are willing to pay more for appliances with a distinctive look. That is why many brands use patterned sheets to differentiate their products.

The Difference Between Patterned and Plain Pre-Painted Sheet

At first glance, patterned and plain pre-painted sheets may not seem very different, but there are important differences in their production process and end use.

Plain pre-painted sheet has a uniform color across its surface and is mostly used for products with a minimal, simple look. Patterned pre-painted sheet, by contrast, features various designs, textures or visual effects that can simulate wood, stone, fabric, brushed metal or even geometric patterns.

Technically, patterned sheets also require more precise control of the printing and coating process. The slightest error in color registration or in setting the pattern rollers can affect final product quality. That is why producing these products requires more advanced equipment and stricter quality control than plain pre-painted sheet.

Another important point is that many patterns hide minor scratches and fingerprints better. This is especially important for heavily used appliances such as refrigerators, dishwashers and washing machines, and keeps the product looking clean and new for longer.

Patterned Sheets and Electrostatic Painting Technology for Appliances

Many people assume that all home appliances are painted after the body is produced, whereas a significant share of today’s products are made from pre-painted sheet. Of course, this does not mean painting technologies have been eliminated entirely.

Electrostatic painting is still used for some metal parts, frames and internal components of appliances. Thanks to its uniform coverage, high adhesion and reduced paint waste, it is one of the most widely used technologies in the industry.

However, when the goal is a body with complex patterns and decorative effects, patterned pre-painted sheet offers more advantages, because creating multi-color patterns or special textures with electrostatic painting would be very difficult and costly.

In fact, these two technologies are not competitors; on many production lines they are used together so that the final product meets high standards both technically and visually. Of course, final product quality depends largely on the quality of the raw materials and the sheet production technology. That is why choosing a reputable steel sheet manufacturer plays an important role in the performance and longevity of the final product.

What Should You Consider When Choosing Patterned Pre-Painted Sheet?

For appliance manufacturers, choosing the right sheet is not based on appearance alone. The first criterion is the coating’s resistance to abrasion, impact and chemicals. Home appliances are typically used daily for years, and the coating quality must match those conditions.

The next issue is color stability. Continuous exposure to ambient light or temperature changes should not cause the product to change color or lose visual quality. That is why lightfastness and color durability tests are very important in quality control.

Manufacturers should also consider the sheet’s formability. Some patterns and coatings may be damaged during bending or deep drawing. So it is essential to choose a sheet that performs well on the production line as well as looking good.

Finally, price is also a decisive factor. Evaluating the price of pre-painted sheet should be done alongside criteria such as thickness, coating type, paint quality, durability and the manufacturer’s reputation. Choosing on low price alone can lead to higher costs in the long run.

Conclusion

Patterned pre-painted sheets have become a key element of the home appliance industry. In addition to creating visual variety and appeal, they provide important technical benefits such as corrosion resistance, color durability, fewer production steps and better final product quality.

Growing demand for distinctive and personalized designs means the role of pre-painted sheet in producing refrigerators, washing machines and other appliances is becoming more prominent every day. We can therefore expect the use of more diverse patterns, textures and visual effects in this industry to keep growing.

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What Is RAL Color and Why Does It Matter When Buying Sheet and Steel?

RAL is a global standard color-coding system used in the coated metal (PPGI) industry to define colors precisely. In the Iranian steel and galvanized sheet market, this code has become the common, precise language between buyer, contractor and mill. Using a RAL code instead of general names is the most important factor in reducing color mismatches in projects. When ordering roofing sheet, sheds, cabins or metal structures, the slightest color difference can make the whole project look uneven.

In the real market, color names often cause errors, but the RAL code is the precise language of ordering.

Why Does RAL Color Matter When Buying Galvanized Sheet?

At first glance, choosing a color may seem purely cosmetic, but in the industrial production of pre-painted galvanized sheet it is part of the quality control process. The paint coating affects not only the beauty of the structure but also its resistance to weather, its long-term durability and the sheet’s thermal behavior. Even with the same RAL code, the final output may differ slightly due to differences in the type of paint, coating thickness, resin formulation and each mill’s line settings. So although the RAL code is the standard language for ordering, a real sample on the sheet is always the final basis for decisions.

Galvanized Sheet Colors and Their Applications in Projects

In the galvanized sheet market, a few color ranges are used more than others. Light colors such as white and off-white are used more in light construction projects and sheds. Dark colors, by contrast, are used more in projects where visual impact or showing less dirt matters. The difference between light and dark colors is not only visual: light colors absorb less heat and perform better in hot environments, while dark colors may look durable for longer in some conditions. In addition, the thickness of the paint coating directly affects color stability outdoors. Even with the same RAL code, a thinner coating can cause premature color change, especially in projects exposed to direct sunlight.

The Most Popular RAL Codes in the Iranian Market

The most popular RAL codes in the Iranian market are the colors most used for galvanized sheet, roofing and steel structures. The reason is clear: these colors are more stable in production, face fewer supply constraints and cause fewer errors during installation. That is why most market orders are concentrated on a few specific codes. Among them, RAL 1015, RAL 9016 white and various shades of gray, red and blue account for the largest share in construction and industrial projects, while more specialized colors are used mostly for safety applications or special projects.

The RAL Color Chart and Its Real Role in Purchasing

In industrial purchasing, the RAL color chart is one of the reference tools for reducing errors. It helps you choose color codes precisely rather than by personal impression. In many projects, contractors use options such as downloading a RAL color chart or a RAL catalog to check color matching before ordering.

The key point is that a PDF or printed RAL chart is not always equivalent to the actual result on the sheet. Lighting conditions, sheet material and coating type can cause visible differences between the chart and the final product.

What Does Standard RAL Color Mean and Which Codes Are Used Most?

When we talk about standard RAL colors, we don’t mean a single code but a set of colors that offer the best matching and the least production variance in the steel industry. In the Iranian market some codes are used widely, but that does not make them absolute technical standards. This is exactly the difference between an industrial standard and a market standard: one is defined by quality control, the other by repeat orders.

Important note: some colors, despite high usage, do not perform equally in harsh environments, and this shows up in long-term projects.

Choosing a RAL Color for Roofing Sheet and Its Effect on Price

In roofing sheet orders, color is not just a visual feature; it also affects the final project price. Some colors change the total cost because of their production process or lower availability. Market surveys show that the roofing sheet price list also varies by color, especially for bulk orders.

Some colors need longer production time because they require several quality control stages and line adjustments. This increases delivery time and, in some cases, cost.

The Role of RAL Color in the Steel Supply Chain and Choosing a Supplier

Choosing a supplier in the steel market does not depend on price alone; color consistency is a serious criterion in industrial projects. The direct link between color code and production process means final quality depends largely on the manufacturer’s control capabilities. In this regard, companies such as Arand Lenjan Steel play an important role in consistent supply, because coordination between production and warehousing directly affects color consistency.

RAL Catalogs: A Real Tool or a Source of Error?

RAL catalogs and color charts seem like precise, useful tools for initial selection, but in practice they should not be the sole final criterion. Differences in ambient light, gloss level (glossy or matte finish) and, above all, the type of paint coating (PE, SMP or PVDF) mean that the color on an actual sheet looks slightly different from what you see in a printed catalog or digital file. That is why many professional contractors request a physical color sample on galvanized sheet from the supplier before placing a bulk order, to avoid disputes later.

How Do Contractors Choose RAL Colors Without Errors?

Professional contractors do not rely on a single source. Before a bulk order they examine a real color sample on the sheet and then make the final decision. Another approach is to match the RAL code simultaneously against a physical sample and the project conditions. This keeps visual errors and differences in ambient light out of the decision.

Conclusion

Choosing a steel RAL color for galvanized sheet, roofing sheet and pre-painted steel products goes beyond a purely visual decision: it directly affects total cost, coating durability, heat absorption and the final appearance of the project. Understanding the difference between general color names and exact RAL codes, using charts and catalogs correctly and, above all, checking a real physical sample are three key factors in avoiding color mismatches, rework and dissatisfaction. Ultimately, professional contractors and buyers who rely on exact RAL codes and request samples before bulk orders can choose more precisely, minimize errors and gain better control over the final result of their projects.

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Traditional, Timeless Colors

Traditional roof colors usually include shades that have been tested for years in the Iranian market and architecture, which is why they remain the first choice for many residential and industrial projects. This group mainly includes red, yellow, orange, green and blue, which are considered low-risk options because of the stability of their pigments and their predictable behavior under weather conditions.

Red

Choosing red for a roof is a symbol of classic style that makes your building stand out among the surrounding structures. Technically, red absorbs a high proportion of solar radiation and stores a lot of heat in the roof layers, so thermal insulation is essential to control the building’s interior temperature. Although red is still a popular color for traditional roofing according to global trends, in the Iranian market the choice comes down to two quite distinct color codes with different uses:

Light Red

Known as tomato red, this color is the standard, economical choice for industrial roofs and sheds. Because of its high brightness, this color code is very sensitive to UV radiation and, without a high-quality protective layer, it quickly suffers from chalking and fades to a dull pink.

Dark Red

This dignified shade, also known as wine red or maroon, is the first choice for villa architecture and tile-pattern designs. Besides its luxurious look, dark red resists fading and environmental pollution better and creates a very attractive visual contrast in forested and humid regions.

Yellow

If you are looking for the best color for a corrugated roof that both transforms the look of the building and performs exceptionally well, yellow is a strategic choice. A yellow roof acts like a heat shield that keeps the interior from overheating. Unlike dark shades that soak up heat, this color strongly reflects sunlight back to the sky, keeping the building cooler during scorching summers. Beyond this practical advantage, yellow is the boldest choice for buildings that want to stand out like a lively, energetic gem amid the gray of the city or the green of nature.

The reality is that when asking about the price of roofing sheet, many buyers only think about the initial cost; but choosing light colors such as yellow is actually an investment in lowering electricity and cooling costs throughout the year. In the Iranian market, these two options are the most popular yellows:

Traffic Yellow

Code 1023 is the well-known strong yellow used in industrial environments. If your goal is to attract maximum attention and create a strong visual landmark, this code is the best option.

Lemon Yellow

Code 1018 is a softer yellow and, being lighter, offers higher heat reflection. It shows the effects of sunlight and fading much later, making it an ideal choice for those seeking a modern, calmer look.

Blue

A blue roof gives a building a sense of strength and authenticity and is a choice that never goes out of style. Many experienced contractors believe blue shades, thanks to the high stability of their pigments, are the best metal roof color for areas exposed to intense sunlight or high humidity. Because of its resistant structure, this color is one of the most fade-resistant options, but since it is a dark color it absorbs solar heat; so to keep the building cool in summer you should definitely use insulation layers under the roof.

Black

If we were to name a bold, minimal and thoroughly modern choice, black has no rival. Contrary to the common view that it is merely a luxury option, in contemporary architecture black is used as a powerful design tool to create contrast and define the building’s volume. A black roof makes the building’s lines look sharper and, especially combined with light facades, creates a thoroughly professional, engineered look.

Technically, however, black is one of the most challenging choices. It absorbs the most solar energy and can significantly raise the roof surface temperature; so installing thermal insulation under it is not an option but a necessity – a point that every professional pre-painted galvanized sheet manufacturer also notes in its product specifications. Black pre-painted sheet is known in the Iranian market by RAL code 9005.

Charcoal

Charcoal sheet for pitched roofs is a choice that sits right on the border between beauty and performance: it keeps the grandeur and visual depth of black but behaves in a more controlled way against sunlight and environmental pollution. In modern architecture this color is known as a balancing tool, especially for minimalist villas, suburban buildings and structures in natural settings such as forests or mountains, where it blends in well without drawing too much attention or getting lost in the landscape.

Gray

Gray is a well-considered choice for projects seeking a modern, lasting and low-risk look – a color that creates precise visual balance without excessive attention and harmonizes well with a wide range of facades, from industrial to residential. Functionally, gray absorbs less heat than black and charcoal while showing dirt and dust less than very light colors – a combination that makes it one of the closest options to the best pre-painted sheet for diverse climates. In the Iranian market, dark gray (RAL 7012) is the dominant code: a balanced color that is neither too dark nor too light and performs reliably in different weather conditions.

Orange

Orange is one of the boldest roof choices and is used most in commercial projects, branded sheds and service structures, because it is quickly visible from a distance and acts as a strong visual landmark. Compared with neutral shades, this color creates higher visual intensity and in architecture is used more as an attention-grabbing tool than as a purely protective covering.
The most common orange in the Iranian market is RAL 2004, known as pure orange. With orange, keep in mind that this shade has only moderate resistance to weather changes: its warm nature raises the roof temperature during the day, and with poor installation the sealing of self-drilling screws can be affected, increasing the risk of reduced joint durability.

The Latest Trending Roof Colors for 2026

In this year’s design trends, both the global and Iranian markets have moved toward colors that offer lasting visual appeal and suit hot and changeable climates. The key point is that choosing the latest roof color is no longer only about beauty; it is a combination of thermal performance, light resistance and harmony with modern architecture.

Olive Green

One of the trending colors of recent years is olive green (RAL 6011), used in villa projects and buildings close to nature. Because it blends with the surroundings and reduces visual contrast, demand for it has grown in the Iranian market too, and it is a serious choice for roofs that should be less conspicuous yet have a natural identity.

Bronze

These days dark bronze (RAL 8019) has become a trend as a luxurious, industrial color. This shade creates a special visual depth in direct sunlight and has replaced some black and charcoal shades in urban and commercial projects, because it looks substantial while offering better thermal control than black.

Silver Gray

Among lighter colors, silver gray (RAL 9006) is becoming a new standard. Thanks to its good reflection of sunlight, this color performs better in hot climates and is increasingly seen in projects where lowering the roof temperature matters.

Steel Blue

Finally, one of the fastest-growing colors in the Iranian market is steel blue (RAL 5011), used in industrial and semi-modern projects. This color gives the structure a technical, engineered feel and, combined with metal materials, creates a more unified look than older blues.

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First-Week Report on Specialist Interviews

The evaluation and in-person interview process for successful candidates of the Arand Lenjan Steel recruitment exam began as planned on February 21, 2026, and the first week’s sessions were held in an orderly and fully successful manner. However, given the prevailing public conditions and to ensure candidates’ peace of mind, it was not possible to hold sessions from the second week onward, and the process has been temporarily suspended until stable conditions return.

When Will Arand Lenjan Steel Recruitment Interviews Resume?

Many candidates are asking exactly when the recruitment interviews will take place.
Score-based prioritization: As soon as conditions stabilize, interview invitations will resume exactly from where they stopped.
Direct contact: Our colleagues in the recruitment department will personally contact each successful candidate, in order of the scores achieved in the written exam.
Final arrangements: During the phone call you will be informed of the exact date, time and location of your interview.

The position of all candidates who passed the written exam is fully protected in the recruitment process, and the current suspension will not change the final results or candidates’ rights in any way.

Important Advice for Job Seekers and Candidates

Since call scheduling is handled directly by the company, we kindly ask you not to follow up by phone, visit in person or send messages at this time. Your records and contact details are securely stored in the company database, and our team will contact you at the appointed time to invite you to the next steps of the selection process.

We believe that human capital is the guarantee of sustainable development in the steel industry. The selection process will therefore continue with care and scientific rigor so that the most qualified people are chosen based on technical skills and personal qualities. We sincerely thank you for your patience, understanding and support until conditions improve and in-person meetings resume.

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The event drew an impressive turnout of more than 1,000 candidates across morning and afternoon sessions, which not only reflects the high trust of the local community and Isfahan Province in the company, but is also seen as a notable achievement for a private enterprise in attracting talented and skilled people. The broad participation of candidates in the Arand Steel exam signals a clear vision and a promising future for this production unit, and the large number of applicants demonstrates the significant job-creation and economic development potential this industrial project will bring to the country.

Exam Organization and Procedures

The first session of the exam began at exactly 8:30 a.m. on Friday. This session was for candidates holding a high-school diploma or associate degree, with male and female applicants competing simultaneously in seven job areas: packaging, loading and unloading, crane operation, security, washing and lubrication, restaurant, and welfare and services.

The afternoon session started at 2 p.m., with male and female candidates holding bachelor’s and master’s degrees competing for positions in mechanical engineering, chemical engineering, metallurgical engineering, accounting, management, electrical engineering, industrial engineering and computer engineering.

Participation of Executive, Security and Emergency Organizations

The first stage of the exam was the result of cooperation among several executive, security, emergency and supervisory bodies. Islamic Azad University, as host and organizer, provided the main venue and staff. The police were stationed on site and were responsible for security and order. The Red Crescent and the health network were present to cover possible medical emergencies, and the fire department oversaw compliance with safety standards. In addition, the board of directors and a 10-person team from Zarrin Foolad Shahriari Company visited the exam on site and supervised its proper conduct.

Preliminary results will be published on February 12, 2026, and successful candidates will be invited to in-person interviews.

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How Does Galvanized Sheet Differ From Pre-Painted Sheet?

To understand exactly how galvanized sheet differs from pre-painted sheet, you need to know their core – the sheet they are made from. The base sheet of galvanized products is black (uncoated) steel, which is coated with a layer of zinc on both sides to increase its resistance. This strengthening process is generally focused on preventing oxidation and extending the service life of the sheet.

What Is Pre-Painted Galvanized Sheet? Pre-painted sheet is a more advanced product than galvanized sheet because its base metal is not black steel but galvanized steel. In other words, we start with a galvanized sheet which, after several processes, is covered with primer and polymer paint layers such as polyester. Beyond their visual appeal, these layers also improve the sheet’s resistance. So the key difference between these two sheets is the number of protective layers.

Production Method: From the Molten Bath to Painting and Curing

There are generally two methods for producing galvanized sheet, hot and cold, and both require preparing black sheets through pickling and degreasing. In the hot method, sheets are immersed in a molten bath at 450 °C. The main feature of this method is that every part of the sheet comes into contact with zinc at high temperature. The high heat of the bath changes the crystalline structure of the sheet and creates a more cohesive compound, which is the root of this product’s high resistance. The cold method, by contrast, is carried out at ambient temperature by electroplating or spraying zinc, and is called “electro-galvanizing”. In this method the sheets are placed in an electrolyte solution and, when an electric current is applied, zinc ions bond with the metal surface.

Pre-painted sheet production starts exactly from this point: after another round of washing and degreasing, the galvanized sheets must be dried completely. The sheet then moves to the section of the line where electrostatic paint is applied to the product by special rollers. In the final stage the sheet is placed in an oven to be cured. Polyester, epoxy and polyurethane paints are the main options used in products such as Mobarakeh Steel’s pre-painted sheets.

The Visual Variety of Coated Sheets

Appearance is the most obvious difference between pre-painted and galvanized sheet. Galvanized sheet is usually produced with a shiny silver finish and has a thoroughly industrial look. Pre-painted sheet, however, comes in a huge variety and, with its smooth finish, is used in decorative and facade work. Pre-painted galvanized sheets are available in profiles such as tile pattern, Genoa, corrugated (sinusoidal) and trapezoidal. Arand Lenjan Steel manufactures a wide range of products, including single-color and patterned steel sheets, and supplies them to domestic and international customers. As mentioned, the surface of pre-painted sheet is completely smooth, whereas galvanized sheet has a flake-like or frosty pattern called “spangle”.

Important note: Spangle on galvanized sheet is actually a crystalline pattern that forms as the molten zinc cools. Interestingly, the finer or fewer the spangles, the higher the quality of the sheet and the better it performs when converted into pre-painted sheet.

Which Is More Durable: Pre-Painted or Galvanized Sheet?

Thanks to their good coatings, both sheets resist moisture, impact and scratches, but pre-painted sheet performs more reliably because of its additional protective layers. The extra paint layer is not just for looks: it creates strong chemical bonds that make the product’s structure more resistant.

Another factor that determines the durability of these sheets is their thickness. Pre-painted sheet is usually produced in thicknesses of 0.2 to 0.7 mm so that it does not have problems during forming and bending. Galvanized sheet, however, is produced in greater thicknesses of about 0.3 to 3 mm, which increases its resistance to pressure and heavy loads. In fact, each of these sheets shows higher resistance than the other within its own field.

Applications of Pre-Painted and Galvanized Sheet

In terms of application, galvanized sheet is mostly used in infrastructure and industrial projects such as sheds, water tanks, ducting and automotive parts, where appearance is not very important. Pre-painted sheets, on the other hand, thanks to their attractive look and excellent formability, are the first choice for villa roofs, building facades, appliance bodies such as refrigerators and washing machines, and container manufacturing. In short, if the budget is limited and the priority is simply rust resistance, galvanized sheet is the better option; but in projects where maximum service life and appearance matter, pre-painted sheet – despite its higher initial cost – is more economical in the long run.

Comparing the Prices of Galvanized and Pre-Painted Sheet

Galvanized sheet is cheaper than pre-painted sheet because its production process is shorter and it does not include the cost of additional raw materials such as polymer and epoxy paints. Alongside steel market fluctuations and inflation, the weight and dimensions of each sheet are also key factors in its price. In northern and southern Iran, sheet maintenance costs should also be a spending priority because corrosion rates are higher there. Pre-painted sheet lasts longer in humid conditions, so in these regions it can deliver better performance at lower overall cost.

Which Sheet Is Best for Which Application?

To get the most out of each sheet, you need to know exactly what each is used for. In general, pre-painted sheet is the better choice for projects where appearance comes first, such as facades. Galvanized sheet, meanwhile, is used for infrastructure and industrial work where resistance to heavy loads is the priority. In the table below we compare the properties of the two products, since these properties determine how the sheets are used:

Conclusion

Pre-painted sheet is one of the most widely used coated sheets and shines in projects where appearance is the priority. Galvanized sheet, with its industrial look and high strength, is the backbone of heavy industries such as construction. Although galvanized sheet is more economical and many people choose it for that reason, each sheet should always be used where it fits best.

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