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USA UNS G41350
ASTM
Specification or Grade		 4135
Corresponding Standard ASTM A29/A29M-2012
Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
Classification Alloy Steel
Chemical Element Composition Content (%)
Component C Si ① Mn P S Cr Ni ② Cu ② Mo More
Minimum Value 0.33 0.15 0.7 - - 0.8 - - 0.15 ③
Maximum Value 0.38 0.35 0.9 0.035 0.04 1.1 0.25 0.35 0.25
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS14 BS EN/BS
35CrMo
35CrMoV 		A30352
A31352 		SCM435 SCM435
SCM435H 		SCM435 4135 G41350 34CrMo4 34CrMo4 1.7220 35CD4 34CrMo4 1.7220 35XM
35ХМФ 		2234 708A37
CDS13
2 Approximate Comparison Table Cold Heading Steel
China United States International Organization for Standardization Germany France
GB ISC ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF
ML35CrMo A30354 4135
A320ML7B 		G41350 34CrMo4E
(C31) 		34CrMo4 1.7220 34CD4
3 Approximate Comparison Table Alloy Steel for Quenching and Tempering
United States International Organization for Standardization Germany France European Standard
ASTM ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
4135 34CrMoS4 34CrMoS4 1.7226 34CD4u 34CrMoS4 1.7226
4 Approximate Comparison Table Structural Alloy Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST SS BS EN/BS
35CrMo
ZG35CrMo 		SCM435H 4135 34CrMo4 34CrMo4 34CD4
35CD4 		34CrMo4 1.7220 35KHM
35KHML 		2234 708A30
708M32
5 Approximate Comparison Table Cast Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST SS BS EN/BS
ZG35CrMo
35CrMo 		SCM435H 4135 34CrMo4 34CrMo4 34CD4
35CD4 		34CrMo4 1.7220 35KHM
35KHML 		2234 708A30
708M32
6 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization Germany
GB JIS ASTM ISO DIN EN/DIN
ML35CrMo SCM435 4135 34CrMo4E 34CrMo4

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