This standard specifies the spheroidite examination and grading for low carbon structural steel, low carbon alloy structural steel, medium carbon carbon structural steel and medium carbon alloy structural steel after spheroidizing annealing.
This standard is applicable to the spheroidite examination and grading for low and medium carbon structural steel after spheroidizing annealing and before cold forming such as cold heading and cold extrusion.
定价: 372元 / 折扣价: 317 元 加购物车
This standard specifies the heat treatment equipment for vacuum low pressure carburizing high pressure gas quenching with double chamber structure and the absolute pressure of high-pressure gas quenching reaching 2 MPa, as well as the technical requirements for process, quality control and inspection, safety and health, environmental protection, etc.
This standard is applicable to the heat treatment process of vacuum low pressure carburizing high pressure gas quenching of steel parts with acetylene, propane and other hydrocarbyl gases as carburizing medium.
定价: 588元 / 折扣价: 500 元 加购物车