Grade 20MnB
Corresponding Standard GB /T 37601-2019
Hot rolled steel sheet and strip of alloy structure steel
Classification Alloy Steel
Properties Forgability
20MnB Chemical Element Composition Content (%)
Component C Si c Mn P S Cr Ni Cu Mo B
Minimum Value 0.17 0.17 1.1 - - - - - - 0.0008
Maximum Value 0.23 0.37 1.4 0.03 0.02 0.3 0.3 0.3 0.1 0.0035
20MnB Mechanical Properties
product Heat Treatment or Condition
Hardness
HBW
Steel plate, steel strip Spheroidizing Annealing ≤197

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