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Home Material GB /T 37601-2019
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Grade 20CrNiMo
Corresponding Standard GB /T 37601-2019
Hot Rolled Steel Sheet and Strip of Alloy Structure Steel
Classification Alloy Steel
20CrNiMo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.17 0.17 0.6 - - 0.4 0.35 - 0.2
Maximum Value 0.23 0.37 0.95 0.03 0.02 0.7 0.75 0.3 0.3
20CrNiMo Mechanical Properties
product Heat Treatment or Condition
Hardness
HBW
Steel plate, steel strip Spheroidizing Annealing ≤197
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS14 BS EN/BS
20CrNiMo A50202 SNCM220 SNCM220 SNCM220 8620 G86200 20NiCrMo2 21NiCrMo2 1.6523 20NCD2 20ХНМ 2506 805M20
2 Approximate Comparison Table Structural Alloy Steel
China United States
GB ASTM/AISI
20CrNiMo 8620RH
8620RH(K)
3 Approximate Comparison Table Structural Alloy Steel
China United States
GB ASTM/AISI
20CrNiMo AISI4720SR
20CrNiMo Corresponding Standards(Same grade name, different standards)
1 GB /T 3077-1999
20CrNiMo A50202
2 GB /T 3077-2015
20CrNiMo A50202
3 GB /T 37601-2019
20CrNiMo

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