Grade SCM420H
Corresponding Standard JIS G 4052-2016
Structural Steels with Specified Hardenability Bands
Brand/Supplier
Japan -> JFE Steel
-> POSCO
Classification Alloy Steel
SCM420H Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.17 0.15 0.55 - - 0.85 - - 0.15
Maximum Value 0.23 0.35 0.95 0.03 0.03 1.25 0.25 0.3 0.3
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
SCM420H 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"!