B900FD steel used for armor ASTM equivalent steel grade

B900FD steel used for armor,Chinese grade of 20# steel plate: No.20American grade: ASTM1020Japanese grade: S20CGerman, British and French grades: C22, C20CMaterial No.: 1.0402, 1.0411Density: 7.85The strength of 20# steel plate is slightly higher than that of 15# steel plate, with little quenching and no tempering brittleness. , 20# steel plate is generally used for bending and so on processing The welding performance of arc welding and contact welding is good When gas welding, the 20# steel plate with thin thickness and strict or complex shape is easy to crack,B900FD steel used for armor.

B900FD steel used for armor,Grade Q420 steel has high strength, especially in the normalizing or normalizing and tempering state. , Q420 steel has high comprehensive mechanical properties Q420 steel is mainly used for large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, rolling stock, hoisting machinery, mining machinery and other large welded structural parts Grade Q460 steel, with high strength, has high comprehensive mechanical properties in normalizing, normalizing and tempering or quenching and tempering states The quality grades are C, D, E Q460 steel is used in various large engineering structures and light structures requiring high strength and heavy load,B900FD steel used for armor.

Penetration testing technology is only suitable for detecting surface defects. It uses penetrant to apply on the surface of the steel plate, then wipes the excess penetrant with the cleaning solution, and then smears the developer. The penetrant remaining in the defect is adsorbed by the developing material, so as to observe the shape of the defect and determine the type of defect. This method requires multiple wipes before and after the inspection, the process is more cumbersome, and can not detect internal defects and rough and dirty steel plates.

B900FD steel used for armor,we are the best professional steel manufacturer in China. We can supply kinds of steel product size，if you want to purchase steel plate or steel pipe and other products. Please contact us freely. we can give you the best price with high quality.

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