Hot rolled NM400 material meaning tensile strength

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Austenitic stainless steel has good plasticity and low strength, but its corrosion resistance is the best among the stainless steels. NM400 material meaning, Austenitic stainless steel is suitable for the occasions where the mechanical properties are not required to be very high, such as chemical plants, chemical fertilizer plants, sulfuric acid and hydrochloric acid manufacturers, etc. Of course, austenitic stainless steel can also be used in submarine and other military industries.

20G steel is boiler steel, which is similar to No. 20 carbon steel. The difference is that 20G steel has higher and stricter inspection standards than NM400 material meaning, No. 20 carbon steel for harmful impurities and internal defects. That is to say, 20G steel is specially produced for boiler pressure vessels. It is special purpose "No. 20 carbon steel". The use of 20G steel to make boilers is not because it is more resistant to burning than other steels such as NM400 material meaning, but because of its strength, toughness, ductility, weldability, temperature influence, fatigue fracture, price and cost, etc. 20G steel is most suitable for use in medium and low pressure boilers.

The hot rolling method is to heat the NM400 material meaning steel material to about 1000 ℃ ~ 1250 ℃ and use the rolling mill to roll it. The traditional hot rolling process is generally divided into the following two steps: the first step is to use the primary rolling mill or billet rolling mill to roll the ingot, billet or continuous casting billet into a certain shape and size of billet. This kind of NM400 material meaning rolling process is usually called semi-finished product production, also called blank production.

NM400 material meaning, SA387Gr11CL2 steel chemical composition(%): C: ≤0.15, Si: 0.44—0.86, Mn: 0.35—0.73, P: ≤0.10, S: ≤0.007, Cr: 0.94—1.56, Mo: 0.40—0.70, Ni: ≤0.25, Cu: ≤0.20, Sb: ≤0.0030, Sn: ≤0.015, As: ≤0.016.SA387Gr11CL2 steel mechanical properties: Tensile strength, ksi [MPa]: 75 to 100 [515 to 690]; Yield strength, min, ksi [MPa]: 43 [310]Elongation in 8 in. [200mm], min %: 18; Elongation in 2 in. [50mm], min, %: 22

Relying on the background of high-quality steel resources and its own strong steel machining capabilities, BBN comany can not only supply various steel material products, such as steel coils, steel plates, NM400 material meaning sheet, steel pipes, and shaped steels, but also provide a variety of steel deep processing services like cutting, welding and grinding. Through continuous technological innovation and after-sales service optimization, the company has its own world on the domestic and international steel industry stage!