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Grade 34CrMo4
Corresponding Standard ISO 683-18-1996
Heat-treatable steels, alloy steels and free-cutting steels
Classification Alloy Steel
34CrMo4 Chemical Element Composition Content (%)
Component C Si * Mn P S Cr Mo
Minimum Value 0.3 0.1 0.6 - - 0.9 0.15
Maximum Value 0.37 0.4 0.9 0.035 0.035 1.2 0.3
34CrMo4 Mechanical Properties
thickness
t
mm		 Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
16＜t≤40 Quenching + Tempering + Descaling
900~1100		 Quenching + Tempering + Descaling
≥650		 Quenching + Tempering + Descaling
≥12		 Annealing + Descaling
≤223
40＜t≤63 800~950 ≥550 ≥14 ≤223
63＜t≤100 800~950 ≥550 ≥14 ≤223
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 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
3 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
4 Approximate Comparison Table
Japan International Organization for Standardization European Standard
JIS ISO EN Numerical Grade
SCM435
SCM435H 		34CrMo4 34CrMo4 1.7220
34CrMo4 Corresponding Standards(Same grade name, different standards)
1 ISO 683-18-1996
34CrMo4
2 DIN 17200-1987
34CrMo4 1.7220
3 EN 10083-3-2006
34CrMo4 1.7220
4 EN 10263-4-2001
34CrMo4 1.7220
5 EN 10250-3-1999
34CrMo4 1.7220
6 EN 10297-1-2003
34CrMo4 1.7220
7 DIN EN 10263-4-2002
34CrMo4 1.7220
8 DIN 17204-1990
34CrMo4 1.7220
9 VDI 2230-1-2015
34CrMo 4 1.7220
10 DIN EN 10263-4-2018
34CrMo4 1.7220
11 EN 10263-4-2017
34CrMo4 1.7220
12 ISO 683-2-2016
34CrMo4
13 ISO 683-18-2014
34CrMo4
14 EN ISO 683-2-2018
34CrMo4
15 ISO 4954-2018
34CrMo4
16 EN 10132-2021
34CrMo4 1.7220
17 NF EN 10083-3-2006
34CrMo4 1.7220 (34CD4)
18 GB /T 18248-2021
34CrMo4
19 ISO 4954-1-2024
34CrMo4
20 DIN 1654-4-1989
34CrMo4 1.7220

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