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Home Material GB /T 3078-2019
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Grade 20CrMo
Corresponding Standard GB /T 3078-2019
Quality Structural Steel Cold Drawm Bars
Classification Alloy Steel
20CrMo Mechanical Properties
condition Heat Treatment or Condition
Hardness
HBW
Delivery condition Annealing, Bright Annealing, High-Temperature Tempering or Normalizing and Tempering ≤197
Delivery condition Cold Drawing, Cold Drawing and Polishing ≤241
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
20CrMo
20CrMoH 		A30202 SCM420 SCM420
SCM418
SCM418H 		SCM420 4118
4120 		G41180 18CrMo4 20CrMo5 1.7264 18CD4 18CrMo4 1.7243 20ХМ CDS12
2 Approximate Comparison Table Structural Alloy Steel
China France
GB NF EN/NF
20CrMo 18CrMo4
20CrMo Corresponding Standards(Same grade name, different standards)
1 GB /T 3077-1999
20CrMo A30202
2 GB /T 3077-2015
20CrMo A30202
3 GB /T 3078-2019
20CrMo
4 GB /T 37601-2019
20CrMo

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