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Galvanic corrosion occurs when stainless steel & galvanized steel screws come into contact.

Can stainless steel & galvanized steel be mixed?

In engineering, stainless steel & galvanized steel (mainly austenitic stainless steel such as 304/316 & hot-dip galvanized HDG) often appear in the same structure. Stainless steel panels are fixed with galvanized brackets, galvanized bolts are screwed into stainless steel components, and stainless steel bolts are used to connect galvanized steel purlins, etc. However, a new question arises at this point: can stainless steel and galvanized carbon steel be used in direct contact? The answer is: it can be done in most conventional building environments, but there is a risk of Contact corrosion under specific conditions, and insulation isolation measures need to be taken. In fact, the contact between stainless steel […]

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Why does galvanized steel rust Galvanized steel plates are rust resistant

Why does galvanized steel rust? 4 common reason and what do

Company / wanzhigroup

Many people believe that galvanized steel will never rust because it has a protective zinc coating. However, in certain environments, galvanized steel can indeed rust. Understanding the reasons behind this can help you choose materials and maintain the steel more effectively. Below, we’ll explain in simple terms why galvanized steel can rust and how to address it. I. The Rust Prevention Principle of Galvanized Steel Before explaining why rust forms, let’s briefly understand why galvanized steel is rust-resistant. Zinc is more reactive than iron. When the coating is intact, zinc preferentially reacts with oxygen and water to form a dense zinc oxide or basic zinc carbonate film, preventing the internal

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Grain-oriented electrical steel silicon steel sheets, slitting and cutting, complete specifications.

Electrical steel – Basic material for modern energy economy

Company / wanzhigroup

Electrical steel, also known as silicon steel sheet, is a soft magnetic alloy of silicon and iron with extremely low carbon content. The efficiency of the vast number of motors, transformers, and generators produced globally each year directly depends on the quality of electrical steel. Simply put, without electrical steel, there would be no modern power system. It is considered the “crown jewel” of the steel industry and an important benchmark for measuring a country’s level of special steel production. I. What is Electrical Steel? The core function of electrical steel is to minimize energy loss during the conversion between electrical and mechanical energy. It needs to possess extremely high

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H-beam vs I-beam detailed comparison guide

H-Beam Vs I-Beam: What’s the Difference?

Company / wanzhigroup

H-beam vs I-beam are the two most common types of structural steel, often compared together by designers, engineering contractors, and project owners. Although the two have similar appearances, there are significant differences in cross-sectional shape, mechanical properties, load-bearing capacity, and application scenarios. Section shape: The fundamental difference between H-beam vs I-beam The cross-sectional shape of H-beam is H-shaped, with wide and thick flanges, parallel inner and outer surfaces, and a middle web connecting the upper and lower flanges. The overall cross-section is close to a square. Due to the close width of the flange and the height of the section, H-beams exhibit excellent stability when subjected to bi-directional loads. The

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Cold rolled steel for appliances manufacturing, CRC Steel for appliances

Cold rolled steel for appliances: advantages, grades and purchasing

Company / wanzhigroup

Cold rolled steel is everywhere around us. When you open the refrigerator or start the washing machine, the key material behind it that makes it strong, beautiful, and durable is cold-rolled steel. There is a clear consensus among global home appliance manufacturers that cold-rolled steel coils (CRC) are undoubtedly the behind the scenes heroes. This material perfectly combines form and function, and is an indispensable core of modern high-quality home appliances. What is cold rolled steel? Cold rolled steel is a type of steel produced by further processing hot-rolled steel coils at room temperature. This’ cold working ‘process involves passing steel through rollers to achieve: The final result is a

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Comparison of Performance and Application Differences between Q195 vs Q235 Steel

Q195 vs Q235 Steel: Strength, Properties & Application Guide

Company / wanzhigroup

Q195 vs Q235 Steel: What Is the Difference? Comparing Q195 vs Q235 steel, the main difference lies in strength, carbon content, and application. Both are widely used low-carbon steel grades under the Chinese GB standard, but they are designed for different industrial purposes. Q195 steel is a low-carbon steel with excellent ductility and formability, while Q235 steel offers higher strength and is commonly used in structural applications. The difference between Q195 and Q235 steel can be summarized as follows: Q195 = better flexibility and forming Q235 = higher strength and load capacity Chemical Composition and Mechanical Properties: Q195 vs Q235 Steel Comparison Understanding Q195 vs Q235 steel properties starts with

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choosing between cold rolled steel vs stainless steel

Comparison between cold rolled steel vs stainless steel

Company / wanzhigroup

If you are in manufacturing, construction, or fabrication, choosing between cold rolled steel vs stainless steel is a common dilemma. At first glance, they might look similar, especially if the cold rolled steel has a shiny, precision finish. However, these materials are fundamentally different in composition, performance, and price . This guide breaks down everything you need to know about cold rolled steel (CRS) vs stainless steel (SS) to help you select the right material for your project. What is Cold Rolled Steel? Cold rolled steel “is not a specific alloy, but a process description for low-carbon steel. It is made of hot-rolled steel and further processed at room temperature.

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Trapezoidal roof panel, corrugated board, color coated roof panel

Corrugated Color Coated Roof Panel – Building Solution

Company / wanzhigroup

Product Overview Corrugated Color Coated Roof Panel is a building panel made of color coated steel plate as the substrate, which is rolled to form ripples (such as wavy, trapezoidal, tile shaped). It combines lightweight, high strength, corrosion resistance, and decorative properties, and is an efficient enclosure material widely used in modern industrial and civil buildings. The core of this product lies in its composite structure of “steel substrate + coating (such as Galvanized, Galvalume) + colored organic coating”. It typically uses cold-rolled steel as the substrate, while the surface coating provides cathodic protection to effectively prevent the steel plate from rusting. The top colored coating not only endows the

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Wanzhi Company's 2026 groundbreaking ceremony

Wanzhi Commences 2026 Operations – Focusing on a New Journey

Company / wanzhigroup

On February 24, 2026, Wanzhi Group held its 2026 New Year’s Commencement Ceremony. This event was not only an important launch ceremony for resuming work after the Spring Festival, but also a crucial meeting to unite the team, inspire a fighting spirit, and clarify annual strategic goals. All employees, with full enthusiasm and high morale, jointly ushered in the new year of 2026. As a professional steel product supplier, Wanzhi Group has always adhered to a development philosophy centered on quality, customer-oriented, and team-based. This commencement ceremony fully demonstrated the company’s positive, united, and enterprising brand image. New Year’s start of work activities Holiday sharing: Bringing people closer and strengthening

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Duplex vs 316 stainless steel: How to choose materials?

Company / wanzhigroup

When choosing stainless steel materials in industrial, marine, or structural engineering projects, duplex stainless steel and 316 stainless steel are the two most commonly compared materials. They all have excellent corrosion resistance, but there are significant differences in strength, cost, and performance in harsh environments. This article will provide a detailed analysis of the differences between duplex stainless steel and 316 stainless steel to help you choose the appropriate material. Duplex vs 316 stainless steel Definition and Characteristics Definition and Characteristics of 316 stainless steel 316 stainless steel belongs to austenitic stainless steel and contains molybdenum (Mo) element, so its corrosion resistance in chlorine containing environments is better than that

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