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Home Material GB /T 5216-2014
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Grade 20CrMoH
China ISC A30205
Corresponding Standard GB /T 5216-2014
Structural Steels with Specified Hardenability Bands
Classification Alloy Steel
20CrMoH Chemical Element Composition Content (%)
Component C Si Mn P S ① Cr Ni ② Cu ② Mo O
Minimum Value 0.17 0.17 0.55 - - 0.85 - - 0.15 -
Maximum Value 0.23 0.37 0.9 0.03 0.035 1.25 0.3 0.25 0.25 0.002
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 Hardenability Guaranteed Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
20CrMnH A30205 SCM420H SCM420H SCM420H 4118H H41180 18CrMo4H 18CrMo4 1.7243 18CrMo4
(20CD4) 		20ХМ 18CrMo4
20CrMoH Corresponding Standards(Same grade name, different standards)
1 GB /T 5216-2004
20CrMoH A30205
2 GB /T 5216-2014
20CrMoH A30205

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