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Grade 65Mn
Corresponding Standard GB 3525-1983
Cold-Rolled Spring and Steel Strips
Classification Carbon Steel
Properties Elasticity Machinability Quench Hardness
65Mn Mechanical Properties
thickness
t
mm		 Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
%
t ≤ 1.5, annealed steel strip ≤635 ≥20
t > 1.5, annealed steel strip ≤735 ≥15
Cold-Hard Steel Strip 735~1175
1 Approximate Comparison Table Spring Steel
China United States Russia United Kingdom
GB ISC AISI GOST BS EN/BS
65Mn U21652 1066 65Г 080A67
2 Approximate Comparison Table High-Quality Carbon Structural Steel
China United States International Organization for Standardization Germany France
GB ISC ASTM/AISI ISO L-Nr. NF EN/NF
65Mn
(GB/T 699-2015) 		U21652 1565
(ASTM A29/A29M:2005) 		C60E4
(ISO 683-18:1996) 		C60E
(EN 1008-1:1991+A1:1996)
(EN 10084:1998) 		1.1221
3 Approximate Comparison Table
China Japan United States International Organization for Standardization Russia
GB JIS ASTM/AISI ISO GOST
65Mn SWRH67B 1566 Type SC
Type DC 		65Г
65Mn Corresponding Standards(Same grade name, different standards)
1 GB /T 699-1999
65Mn U21652
2 GB /T 1222-2007
65Mn U21653
3 GB /T 699-2015
65Mn U21652
4 GB /T 4358-1995
65Mn U21652
5 GB /T 1222-2016
65Mn U21653
6 GB 3525-1983
65Mn
7 YB /T 5058-2005
65Mn
8 GB /T 3078-2019
65Mn
9 Q/ASB 84-2019
65Mn
10 GB /T 711-2017
65Mn
11 HB /Z 136-2000
65Mn

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