Grade 20NiCrMoS6-4
European Standard Steel Grade 1.6571
Corresponding Standard EN 10263-3-2001
Steel rod,bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels
Classification Alloy Steel
20NiCrMoS6-4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.16 - 0.5 - 0.02 0.6 1.4 - 0.25
Maximum Value 0.23 0.3 0.9 0.025 0.04 0.9 1.7 0.25 0.35
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
20CrNi2MoH A50215 SNCM420H SNCM420H SNCM420H 4320H H43200 18CrNiCrMo7H 20NiCrMoS6-4 1.6571 20NiCrMo6-4 20ХН2М (802H17)

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