Principles of controlling A633 Gr E carbon steel plate sheet output

Post-welding heat treatment, post-welding heat treatment can help the overflow of hydrogen diffused in the A633 Gr E carbon steel plate sheet weld metal, effectively reduce the hydrogen content in the weld metal.It can reduce the tendency of cold crack in weld and prevent lamellar tear of thick plate base metal.

Special-shaped seamless pipe is the general term of seamless pipe with other cross-section shapes except circular pipe. According to the different shapes and sizes of steel pipe sections, it can be divided into equal wall thickness special-shaped seamless pipe (code D), unequal wall thickness special-shaped seamless pipe (code BD), variable diameter special-shaped seamless pipe (code BJ). A633 Gr E carbon steel plate sheet. Special seamless pipe is widely used in all kinds of structural parts, tools and mechanical parts. Compared with the round pipe, the special-shaped pipe has larger inertia moment and section modulus, larger bending and torsion resistance, which can greatly reduce the structure weight and save steel.

The strength of A633 Gr E carbon steel plate sheet, 20 # steel plate is slightly higher than that of 15# steel, rarely quenched, and has no temper brittleness. Cold deformation plasticity is high, generally for bending, calendering, flange and hammer arch processing. Arc welding and contact welding have good welding performance and small thickness during gas welding. Cracks are likely to occur on parts with strict shape requirements or complex shapes.

Japan is a typical shipping first, and its raw materials are imported from Oceania, central and South America and other Asian countries. Most of the A633 Gr E carbon steel plate sheet steel produced is exported to China and other Asian countries, and a small amount is exported to America. Shipping is the main way of its A633 Gr E carbon steel plate sheet steel international transportation. According to the data, steel goods account for about 20% of the total sea freight in Japan. The domestic transportation of Japanese steel is mainly truck.