Reputable A588 Grade B tempered and quenched steel suppliers in China

We have A588 Grade B tempered and quenched steel, marine steel CCS AH36 hot rolled plates 300tons in Shanghai stock. Specification: 12*1800*8000, 15*2100*8400, 15.5*3150*8200, 12.5*2380*7500, 21.5*2540*5200, 29*2160*6010, 17*1980*5720, 15.5*1700*8400, 18*2300*6750, 18.5*2680*8800, 14.5*1800*6500, 11*1890*6960, 17.5*1500*6790, 13.5*1900*6050, 14.5*1750*8300, 12*1830*9220, 13.5*1900*6050, 14*2000*6000, 13*2470*7780, 13*3020*6700, 12*1610*11240, 19*2090*7070, 14*1820*6500.

The cold rolling precision bright pipe system produced by our factory has smooth appearance, uniform wall thickness, no oxide layer and high precision. The inner hole of A588 Grade B tempered and quenched steel steel pipe can be divided into round, spline and plum blossom, which is widely used in automobile, motorcycle, electric power, petrochemical, ship, aerospace, bearing, pneumatic components, oil cylinder, boiler equipment, medical equipment, fitness equipment and other industries. Materials can be divided into: 10#, 20#, 35#, 45#, 40Cr, 16Mn, etc. According to the needs of users, we can make all kinds of national standard non-standard precision pipes. Special A588 Grade B tempered and quenched steel materials and specifications can be ordered in advance.

No. 45 steel is commonly used medium carbon quenched and tempered structural steel. The cold plasticity of No. 45 steel is generally better than A588 Grade B tempered and quenched steel. Annealing and normalizing are better than quenching and tempering. No. 45 steel has higher strength and better machinability than Q345 steel. After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance. No. 45 steel A588 Grade B tempered and quenched steel is suitable for hydrogen welding and argon arc welding, but not suitable for gas welding. Preheating is required before welding, and stress relief annealing shall be conducted after welding.

The performance of heat treatment process reflects the difficulty of heat treatment and the tendency of defects of the steel. It mainly includes hardenability, superheat sensitivity, temper embrittlement tendency and oxidation decarburization tendency. The hardenability of A588 Grade B tempered and quenched steel, alloy steel is high. The cooling method can be used slowly during quenching, which can reduce the deformation and cracking tendency of the workpiece. The addition of Mn and Si will increase the superheat sensitivity of steel. The strengthening effect of alloy elements on steel in quenching and tempering state is the most significant.

Through the operation and management, brand advantage and improve pre-sales, sale of after-sales service, the efforts of the company into the industry leading enterprises.Relying on perfect quality management system, it has built up competition predominance and provided high quality, favorable price and perfect after service for customers.