s235jr steel plate stock cold brittleness

The company cooperates with s235jr steel plate stock steel plants such as Maanshan Iron and Steel, Youdan, Liugang, Tangshan Iron and Steel, Xinyu, Jinan Iron and Steel, Shougang, Shagang, Rizhao, Pinggang, Xicheng, Dachang and other steel mills all year round. Alloy plate, s235jr steel plate stock boiler plate, container plate, carbon plate, open plate, I-beam, angle steel, channel steel, H-beam, round steel, steel pipe, hot rolled coil, cold rolled galvanized and other spot stocks.

Strip steel is mainly used for the manufacture of welded pipes, clamps, washers, spring blades, saw blades, blades and other fields, so the s235jr steel plate stock, strip steel specifications are also relatively standardized. First, the strip width should be within 1300mm, if it is too wide, it will become a steel plate, and the machining is not allowed to be too wide, otherwise it will fail. Second, the strip steel length is not limited, and the strip steel can be coiled together after bending, reducing most of the space.

Laser deep penetration welding is to radiate a high-power density laser beam onto the welding material. The material converts the absorbed light energy into heat energy, and is heated to evaporate to produce metal vapor. Under the action of the reaction force generated when the metal vapor leaves the surface of the workpiece, the molten metal liquid flows around and forms pits.

A514 grade R high strength structural steel chemical composition (melting analysis)%C: 0.15-0.20, Si: 0.20-0.35, Mn: 0.85-1.15, P max.: 0.035, S max.: 0.035, B max.: 0.005, Cr: 0.40-0.65, Ni: 0.90-1.10, Mo: 0.15-0.25, V: 0.03-0.08The mechanical properties in thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18