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 terms and definitions,technical requirements,etc.for hazardous substance in the air of heat treatment work place.
This standard applies to occupational exposure limits for hazardous substance in the air of heat treatment work place during heat treatment.
定价: 312元 / 折扣价: 266 元 加购物车

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400-168-0010




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