NEWS | Wanzhi Group

Packaging of black color coated galvanized steel coils

120 ton from UAE! RAL9004 PPGI strip steel + Z275 GI sheet

The United Arab Emirates, especially important cities such as Dubai and Abu Dhabi, has developed rapidly in the construction and manufacturing industries in recent years, which is one of its core strategies to promote economic diversification and reduce dependence on oil. The RAL9004 PPGI strip steel and galvanized steel plate purchased by the UAE factory customer this time are for use in the local construction industry. Product Introduction The high temperature, high humidity, strong ultraviolet radiation, and sandstorm climate in the United Arab Emirates have put forward special requirements for the steel used in its construction and manufacturing industries. In order to withstand the challenges of these harsh environments, local […]

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Z160 galvanized color coated steel coils 810mm

255 ton RAL9003 PPGI coiL For Lebanon loyal customer

Projects / wanzhigroup

The salt spray deposition rate is high in the coastal areas of Lebanon (annual average ≥ 800mg/m ² · d), with an annual average temperature of 21 ° C. The climate in mountainous areas varies greatly, and the color coated steel coating needs to withstand huge temperature fluctuations to avoid cracking or peeling. It must pass the salt spray test for ≥ 2000 hours, and the thickness of the galvanized layer often needs to be above Z150 level to ensure the substrate’s resistance to red rust. Recommend PVDF coating (fluorocarbon resin), which has better weather resistance than PE coating, a color retention life of 15-25 years, and is suitable for

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Wanzhi supplies green color coated aluminum steel to Guyanese builders

Wanzhi anti fingerprint Galvalume steel delivered Guyana

Projects / wanzhigroup

Guyana’s tropical maritime climate poses a severe challenge to building materials – high humidity and strong salt spray corrosion significantly reduce the lifespan of ordinary steel. Recently, Wanzhi Company provided green anti fingerprint galvalume steel coils for a high-end residential project in Georgetown, Guyana, which were highly recognized by customers for their excellent weather resistance and aesthetics. Product Introduction The green fingerprint resistant PPGL steel coil this time includes a triple protection system: 55% aluminum zinc alloy coating (compliant with ASTM A792 standard), nano anti fingerprint coating technology (reducing fingerprint residue by 90%), environmentally friendly green coating, perfectly adapted to the tropical climate environment of Guyana. RAL 6027 PPGL steel

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500mm wide RAL7016 color coated steel purchased by a South African customer

PVDF RAL7016 color coated steel exported to South Africa

Projects / wanzhigroup

RAL7016 color coated steel is the product purchased by the South African customer this time. South Africa’s harsh coastal climate demands building materials that resist corrosion, UV rays, and extreme weather. Wanzhi’s fluorocarbon (PVDF) coated steel coils provide a 25 year+ solution, trusted by architects and contractors across Cape Town, Johannesburg, and Durban. Product Introduction Fluorocarbon color coated steel coil is a high-performance color coated steel coil coated with fluorocarbon coating (PVDF) on the surface, widely used in fields such as construction, home appliances, and transportation. Finished steel coil reel Steel coil display Steel coil cutting Project Background We recently supplied 180 tons of fluorocarbon RAL7016 color coated steel to

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Is Galvalume superior to galvanized in all conditions

NEWS / wanzhigroup

The corrosion resistance of aluminum zinc coated coils (such as 55% aluminum zinc alloy, commonly known as Galvalume) is superior to that of ordinary galvanized coils (pure zinc coating) in most environments, but not all environments are suitable. Its advantages and limitations need to be analyzed in conjunction with specific corrosion conditions. Comparison of Corrosion Resistance with Galvalume vs Galvanized Environment Type Aluminum Zinc (AZ/GL) Galvanized (GI) performance Conclusion Neutral/alkaline atmosphere The oxide film of aluminum (Al ₂ O3) is dense and stable, with excellent corrosion resistance Sacrificial protection of zinc layer, but faster corrosion rate AZ is significantly better than GI Weak acid environment (pH 4-6) Aluminum film partial

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ral 6027 PVDF Coating Steel roofing board

PVDF vs SMP Coating: Which is Better for Roofing?

NEWS / wanzhigroup

PVDF vs SMP Coated Roof Definition PVDF Coated Steel PVDF (polyvinylidene fluoride) coating is a high-performance, pre-painted steel sheet containing at least 70% PVDF resin. High-temperature baking forms a dense protective layer, specifically designed for roofs used in extreme climates. SMP Coated Steel SMP (silicone modified polyester) coating is a modified polyester pre-painted steel sheet containing silicone resin. It offers a lower cost and is suitable for industrial/agricultural roofs used in short- to medium-term applications. PVDF vs SMP Coating Performance Comparison Features PVDF Coating SMP Coating Weather Resistance Extreme (25+ years, ΔE

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18-0 stainless steel coil 430 ss steel No.4 Finish

Analysis of Common Problems for Stainless Steel

Knowledge / wanzhigroup

Analysis of Common Problems for Stainless Steel CATALOG Definition of Stainless Steel Stainless steel, also known as stainless acid-resistant steel, water-copper iron, and in Taiwanese, white iron, is a high-chromium alloy steel that remains passive, corrosion-resistant, and rust-proof in the atmosphere and in corrosive media such as acids, alkalis, and salts. It typically contains other elements such as nickel, molybdenum, vanadium, manganese, and tungsten. Chromium is the most important metallic element in determining stainless steel’s rust resistance. It achieves its “rustproof” properties by forming a dense passive film of chromium oxide (Cr₂O₃) on its surface, which isolates it from corrosive media. This passive film is self-repairing if damaged, but chloride

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Galvanized Steel Guide: Analysis of key issue

Knowledge / wanzhigroup

Galvanized Steel Guide: Analysis of key issue CATALOG Definition of Galvanized Steel Galvanized steel is a steel product coated with zinc to prevent corrosion. This treatment combines the strength of steel with the corrosion resistance of zinc, making it one of the most widely used materials in industry today. The Core Value of Galvanizing The core value of galvanizing lies in its sacrificial anodic protection mechanism: when the zinc coating is scratched or damaged, the zinc corrodes before the steel, protecting the underlying metal from damage. The zinc coating on the steel surface acts as both a physical barrier and an electrochemical barrier. On the one hand, it isolates the

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Hot and Cold rolled steel

NEWS / wanzhigroup

Understand the main differences between hot and cold rolled steel Hot and cold rolled steel are fundamental materials in the metal processing and manufacturing industries. Choosing between them isn’t about which is better, but about selecting the right material for the specific job. Understanding their distinct properties, manufacturing processes, advantages, and limitations is crucial for designers, engineers, and purchasers. The Core Difference lies in when and how the steel is rolled to achieve its final specifications 1. Hot Rolled Steel (HR): Process: Steel is heated significantly above its recrystallization temperature (typically above 1700°F / 925°C) until it glows. It’s then passed through rollers at this high temperature. Result: Easier shaping,

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188 1810 and 180 Stainless Steel differences advantages and disadvantages

Comparing 18/8 18/10 & 18/0 Stainless Steels

NEWS / wanzhigroup

When you buy stainless steel cutlery or pots in the supermarket, you may have seen three different steel labels: 18/8 18/10 & 18/0 stainless steel. It is normal that these numbers are difficult for ordinary people to distinguish the difference, so what makes one stainless steel different from another? Which stainless steel is the best to choose? To quickly understand the differences between the three grades, here is a summary of the chemical composition, advantages and disadvantages of each stainless steel grade. 18/8 18/10 & 18/0 Stainless Steels Comparison Type Composition Pros Cons 18/10 Stainless steel Chromium-18% Nickel-10% Strongest commonlyused grade of stainlesssteel Highly anti-corrosive Resistant to piting Vuinerable tosaltwater

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