40MnB - GB /T 37601-2019

Grade	40MnB
Corresponding Standard	GB /T 37601-2019 Hot Rolled Steel Sheet and Strip of Alloy Structure Steel
Classification	Alloy Steel
Properties	Forgability

40MnB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	B
Minimum Value	0.37	0.17	1.1	-	-	-	-	-	-	0.0008
Maximum Value	0.44	0.37	1.4	0.03	0.02	0.3	0.3	0.3	0.1	0.0035

40MnB Mechanical Properties

product	Heat Treatment or Condition	Hardness HBW
Steel plate, steel strip	Spheroidizing Annealing	≤207

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Structural Alloy Steel

40MnB Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!