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 methods of examination and evaluation level of metallographic microstructure for carburizing,quenching and tempering of steel parts,and the determination of effective hardening layer depth for carburizing and quenching of steel parts.
This standard is applicable to the workpieces with an effective hardening layer depth greater than 0.3 mm for carburizinging and quenching steel parts.
定价: 588元 / 折扣价: 500 元 加购物车
This standard specifies the analysis method of pollutants in heat treatment cleaningliquid waste,the harmless treatment method of liquid waste,the technical requirements of liquid waste recycling and emissions.
This standard is applicable to the waste water recycling and emissions in heat treatment production and processing workshop and enterprise.
定价: 372元 / 折扣价: 317 元 加购物车

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400-168-0010




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