Hot rolled material hardox 400 steel welding process

High toughness and low brittleness transition temperature: with the increase of the working pressure of the material HARDOX 400 steel gas pipeline, the pipe diameter becomes larger, and the pipeline fracture accidents often occur. Toughness is the key factor affecting pipeline fracture. In order to ensure material HARDOX 400 steel pipeline safety, toughness and strength must be improved at the same time.

40Cr steel plate is one of the most widely used steel in machinery manufacturing. After tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel material HARDOX 400 steel is good. It can be hardened to Ф28 ～ 60mm during water quenching and Ф15～40mm during oil quenching. When the hardness is HB174～229, the relative cutting workability is 60%. The steel is suitable for making medium-sized plastic molds.

material HARDOX 400 steel annealing is to heat the steel to 30 ~ 50℃ above the critical temperature, keep it in the heat treatment furnace for a period of time, and then cool it down to room temperature with the furnace. The purpose of material HARDOX 400 steel annealing is to refine the grain of steel, eliminate internal stress and reduce hardness, improve cutting performance, increase toughness and plasticity, and facilitate welding and rolling processes. material HARDOX 400 steel annealing can be complete annealing, incomplete annealing, stress relief annealing, isothermal annealing and spheroidizing annealing.

The material HARDOX 400 steel pressure vessel steel plates are our featured products. We have supplied pressure vessel steel plates to tank manufactures, boiler makers, power plants and so on customers all over the world. We have online service for you at any time, welcome to contact and learn more information about pressure vessel steel, such as material HARDOX 400 steel ASTM A537 class 1 equivalent, 16Mo3 datasheet, Q245R material properties, Q345R material specification, P355GH properties, pressure vessel steel price, etc.

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