JB/T 7709-1995 Boriding layer microstructure, hardness and layer depth testing method

This standard specifies the test methods for the microstructure, hardness and depth of the boronized layer. This standard is applicable to the boronized layer of carbon steel, alloy steel and cast iron, but not to the boronized layer of refractory metals and alloys. JB/T 7709-1995 Test methods for microstructure, hardness and depth of boronized layer JB/T7709-1995 Standard download decompression password: www.bzxz.net

People's Republic of China Press Machinery Industry Standard JB/T 77091995
1995-06-204
1996-01-01
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880A1230
1 seat since 1996
100044
12,000
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