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Home Material ISO 683-11-1987
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Grade 20NiCrMo2H
ISO Numeric Designation 12
Other Names
Corresponding Standard ISO 683-11-1987
Heat-treatable steels, alloy steels and free-cutting steels -- part 11: case-hardening steel
Classification Alloy Steel
Properties Quench Hardness Carburizing Ability
20NiCrMo2H Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.17 0.15 0.65 - - 0.35 0.4 0.15
Maximum Value 0.23 0.4 0.95 0.035 0.035 0.65 0.7 0.25
1 Approximate Comparison Table Hardenability Guaranteed Structural 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 UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
20CrNiMoH A50205 SNCM220H SNCM220H SNCM220H 8620H H86200 20NiCrMo2H 20NiCrMo2-2 1.6523 20NiCrMo2-2 20ХГНМ 2506 (805H17)
2 Approximate Comparison Table Austenitic Stainless 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 UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
12Cr18Ni9
(1Cr18Ni9) 		S30210 302 SUS 302 STS 302 302 S30200 X10CrNi 18-8
12
(ISO 683-13:1986) 		4310-301-00-I X12CrNi 18-8 1.4300 Z10CN 18-09 X10CrNi 18-8 1.4310 12Х18Н9 302S25

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