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A30202
Standard GB /T 3077-1999 Alloy Structure Steels
Standard GB /T 3077-2015 Alloy structure steels


Chemical Composition(%)


Standard Material Designation Chemical Composition (%)
GB /T 3077-1999
Alloy Structure Steels
20CrMo
(A30202)
 
Min
Max
GB /T 3077-2015
Alloy structure steels
20CrMo
(A30202)
 
Min
Max
For Reference Only