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Material
20CrMnMo
Standard
GB /T 3077-1999
Alloy Structure Steels
Standard
GB /T 3077-2015
Alloy structure steels
Standard
GB /T 3078-2019
Quality structural steel cold drawm bars
Standard
Q/BQB 560-2009
Standard
JB /T 6396-2006
Specification for the heavy alloy structural steel forings
Chemical Composition
(%)
Standard
Material Designation
Chemical Composition (%)
GB /T 3077-1999
Alloy Structure Steels
20CrMnMo
(
A34202
)
Min
Max
GB /T 3078-2019
Quality structural steel cold drawm bars
20CrMnMo
Min
Max
Q/BQB 560-2009
20CrMnMo
Min
Max
JB /T 6396-2006
Specification for the heavy alloy structural steel forings
20CrMnMo
Min
Max
GB /T 3077-2015
Alloy structure steels
20CrMnMo
(
A34202
)
Min
Max
For Reference Only
