JB/T 6141.3-1992 Carburizing metallographic inspection of heavy-duty gears

This standard specifies the technical requirements and metallographic levels for metallographic structure inspection of carburizing and quenching and tempering of heavy-duty gears. This standard is applicable to the metallographic inspection of heavy-duty carburized gears made of steel such as 20CrMnTi, 20CrMnMo, 20CrNi3Mo, 15CrNi3Mo, 10Cr12Bu4, etc. JB/T 6141.3-1992 Metallurgical inspection of carburizing of heavy-duty gears JB/T6141.3-1992 Standard download and decompression password: www.bzxz.net

Pressing Machinery Ring Industry Standard JB/T6141.31992
1992-06-094
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Gathering questions
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3.1 Overlord
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1992-06-09
1 ~4 Hao
1~3 Guo
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1993-01-01
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private Ald
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Bottle
Withdrawal
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5%~8% side
30% box
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JB/T6141.31992
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1992A10 blocks||tt| |100044
1992A10
10.006|| tt||14,000
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