Mn element content of commercial use ABS A32 boat building steel structural

S420m material is a fine-grain weldable structural steel that has been thermomechanically rolled. It conforms fully to the EN 10025-4 standard. S420m plates are used in welded structures, large boats and ships, various machinery, bridge supports and metal structures, as well as supporting structures for wind turbines. The steel commercial use ABS A32 boat building steel is used in highway construction and other engineering projects.Heat treatment specification and microstructure of commercial use ABS A32 boat building steel, 12Cr1MoV alloy plate:Heat treatment specification: quenching 970 ℃, air cooling; tempering 750 ℃, air cooling. Microstructure: bainite + ferrite.Mechanical properties of 12Cr1MoV alloy plate:Tensile strength σb (MPa)：≥490(50); Yield strength σs (MPa)：≥245(25); Elongation δ5 (％)：≥22; area shrinkage ψ (%): ≥ 50; Impact energy Akv (J): ≥ 71; Impact toughness value αkv (J/cm2)：≥88(9).If customers have any difficult problems during use of the steel materials, they can contact the company's after-sales service department to feedback the existing problems. The after-sales department will reply as soon as possible to ensure that each customer has a good after-sales experience. Under special circumstances, the after-sales service department will start the problem-solving process, and the engineers in charge of the area will quickly follow up to solve the problem.