JB/T 6141.4-1992 Metallographic identification method for carbon content on carburized surface of heavy-duty gears

This standard specifies the metallographic inspection method for the carbon content of the carburized surface of heavy-duty internal gears. This standard is applicable to steel parts such as 20CrMnTi, 20CrMnMo, 20CrNi3Mo, 15CrNi3Mo, 10Cr12Bu4, etc. Other steel types can be implemented as a reference. This standard is a metallographic method for controlling the carbon content of the surface of parts during carburizing. Unqualified parts are discovered during the heat treatment process so that process parameters can be adjusted in time to ensure product quality. JB/T 6141.4-1992 Metallographic determination method for the carbon content of the carburized surface of heavy-duty gears JB/T6141.4-1992 Standard download decompression password: www.bzxz.net

中华人民共和压机械戒行业标准JB/T6141.41992
1992-06-094bzxz.net
1993-01-01面
G20P uxDEe/
JB/T6141.41992
20CrMnTip20CrMnMo20CrNi2Mo12CrNi3Mo15CrNi3Mog20Cr2Ni415~20mmm
2.3血 4%
1992-06-09
80~100mm粒
800~820粒
1993-01-01
c 0.90%~0.95%C
e1.00%~1.05%c
JB/T6141.41992
直xe0王400x
b 0.85%~0.90%C
d 0.95%~1.00%C
f1.10%~1.20%c
g1.20%~1.25%c
JB/T6141.41992
i2.00%~2.50%c
JB/ZQ4040%88
h1.30%~1.40%C
6141.41992
880A1230
1992A10座
100044
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