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45Cr
Standard GB /T 3077-1999 Alloy Structure Steels
Standard GB /T 3077-2015 Alloy structure steels
Standard Q/BQB 517-2018 Wire rods for cold heading
Standard GB /T 3078-2019 Quality structural steel cold drawm bars
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
45Cr
(A20452)
 
Min
Max
Q/BQB 517-2018
Wire rods for cold heading
45Cr
 
Min
Max
GB /T 3078-2019
Quality structural steel cold drawm bars
45Cr
 
Min
Max
GB /T 3077-2015
Alloy structure steels
45Cr
(A20452)
 
Min
Max
GB /T 37601-2019
Hot rolled steel sheet and strip of alloy structure steel
45Cr
 
Min
Max
For Reference Only