nm400 steel grade erw steel pipe pile supplier

The full name of 304 stainless steel pipe is SUS304 stainless steel pipe. SUS304 stainless steel pipe belongs to the stainless steel pipe made of American trademark. It is equivalent to Chinese grade 0Cr19Ni9 stainless steel pipe, which is generally replaced by 0Cr18Ni9. The mechanism of stainless steel rust prevention is that the alloy elements form a fine oxide film, which insulates the touch of oxygen and prevents continued oxidation.

With high-quality NM400 steel grade steel and professional services, we have won international praise in infrastructure, shipbuilding, oil and other industries, and gradually grow into a bright star in the steel export industry, while winning unanimous praise from foreign customers. It has laid a foundation for the development of our NM400 steel grade steel market and improved the control of steel plate production quality.

Nickel element is mainly used to form and stabilize the austenite structure, so that the NM400 steel grade steel has good mechanical properties, corrosion resistance and process performance. Molybdenum can quickly passivate stainless acid-resistant steel, and improve the corrosion resistance to solutions containing chloride ions and other non-oxidizing media. Titanium and niobium are usually used to fix the carbon in alloy steel and make it generate stable carbides to reduce the harmful effect of carbon on the corrosion resistance of alloy steel.

Generally speaking, the higher the strength of NM400 steel grade, weathering steel, the greater the hardness, while the plasticity and toughness will decrease. When the carbon content of weathering steel exceeds 1.2%, the hardness will increase, but the strength will not increase, but will decrease. Resilience will also decline quickly. When the carbon content is high, the cementite increases and forms network distribution, which weakens the connection between grains and makes the mechanical properties of steel worse.

We have a professional after-sales service team, the company has developed a clear service process and service standards, after-sales service team members strictly perform after-sales procedures, comply with service standards. The most important thing is that we have set up the correct concept of after-sales service, "customer first, sincere service for users".