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30Mn2
Standard GB /T 3077-1999 Alloy Structure Steels
Standard GB /T 3077-2015 Alloy structure steels
Standard GB /T 37601-2019 Hot rolled steel sheet and strip of alloy structure steel


Chemical Composition(%)


Standard Material Designation Chemical Composition (%)
GB /T 3077-1999
Alloy Structure Steels
30Mn2
(A00302)
 
Min
Max
GB /T 3077-2015
Alloy structure steels
30Mn2
(A00302)
 
Min
Max
GB /T 37601-2019
Hot rolled steel sheet and strip of alloy structure steel
30Mn2
(A00302)
 
Min
Max
For Reference Only