Our company's business departments are a group of excellent and hard-working employees, who constantly carry out knowledge updating and steel knowledge training every day, only to provide better and professional services to customers.The corrosion re
Our company's business departments are a group of excellent and hard-working employees, who constantly carry out knowledge updating and steel knowledge training every day, only to provide better and professional services to customers.
The corrosion resistance of stainless steel depends on the alloy elements contained in the steel. The chemical composition of A573gr.65 structural carbon steel sheet, stainless steel and acid resistant steel is different. The former is not necessarily resistant to chemical medium corrosion, while the latter is generally stainless. The better stainless steel also contains nickel. Adding molybdenum can further improve the atmospheric corrosion resistance of stainless steel, especially the corrosion resistance of chloride containing atmosphere.
NM450 steel plate thickness≦80mm. A573gr.65 structural carbon steel sheet, NM450 wear-resistant steel plates are used in engineering machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery, abrasive tools, bearings and other product parts.NM450 Cchemical composition: C≤0.35; Si≤0.70; Mn≤1.70; P≤0.025; S≤0.010; Cr≤1.10; Ni≤0.80; Ti≤0.050; Mo≤0.55; B: 0.0005-0.006; Al≥0.010. Mechanical properties: Tensile strength Rm / MPa ≧ 25; -20 ℃ impact energy absorption (longitudinal) KV2 / J ≧ 24Surface Brinell hardness HBW: 420-480
The allowable working temperature of boiler steel plate is generally below 475 ℃, which can't meet the needs of high temperature working condition. Chromium molybdenum steel is one of the common steels for A573gr.65 structural carbon steel sheet pressure vessels, which is widely used in various hydrogenation units and reforming units in oil refining and chemical industry. Therefore, on the basis of common A573gr.65 structural carbon steel sheet carbon steel, alloy elements such as Cr Mo V are added, which has excellent hydrogen corrosion resistance and good high temperature strength, It is the material of high temperature and high pressure vessel shell and head.
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