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Home Material GB /T 5216-2014
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Grade 20CrH
China ISC A20205
Corresponding Standard GB /T 5216-2014
Structural Steels Specified Hardenability Bands
Classification Alloy Steel
20CrH Chemical Element Composition Content (%)
Component C Si Mn P S ① Cr Ni ② Cu ② O
Minimum Value 0.17 0.17 0.5 - - 0.7 - - -
Maximum Value 0.23 0.37 0.85 0.03 0.035 1.1 0.3 0.25 0.002
20CrH Mechanical Properties
Heat Treatment or Condition
Hardness
HBW
Annealing or High-Temperature Tempering ≤179
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
20Cr
20CrH 		A20202 SCr420 SCr420
SCr420H
SCR420HRCH 		SCr420 5120 G51200 20Cr4 20Cr4 1.7027 18C3 20Cr4 1.7027 20Х 527A20
2 Approximate Comparison Table Hardenability Guaranteed Structural Steel
China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
20CrH A20205 ≈SCr420H ≈SCr420H 5120H H51200 ≈20Cr4H 20Cr4 1.7027 (20MC5) 20Х (527H17)
20CrH Corresponding Standards(Same grade name, different standards)
1 GB /T 5216-2004
20CrH A20205
2 GB /T 5216-2014
20CrH A20205

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