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Grade 10S20
Corresponding Standard ISO 683-18-2014
Bright steel products
Classification Carbon Steel
10S20 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 0.07 - 0.7 - 0.15
Maximum Value 0.13 0.4 1.1 0.06 0.25
10S20 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
5≤t≤10 Cold drawn (+C) 520~780 ≥410 ≥7
10＜t≤16 Cold drawn (+C) 490~740 ≥390 ≥8
16＜t≤40 Cold drawn (+C) 460~720 ≥360 ≥9
40＜t≤63 Cold drawn (+C) 410~660 ≥295 ≥10
63＜t≤100 Cold drawn (+C) 380~630 ≥235 ≥11
16＜t≤63 As-rolled + peeled (+SH) 360~530 ≤156
63＜t≤100 As-rolled + peeled (+SH) 350~490 ≤146
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia
GB ISC CNS JIS KS ASTM/AISI ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
Y12 U71122 SUM21 SUM21 SUM21 B1112
1211① 		10S20 10S20 1.0721 13MF4 10S20① 1.0721 А12
2 Approximate Comparison Table
United States International Organization for Standardization Germany France United Kingdom
ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF BS EN/BS
1108 G11080 10S20 10S20 1.0721 (10F1) 210M15
3 Approximate Comparison Table
China Japan United States International Organization for Standardization Russia
GB ISC JIS ASTM ISO GOST
Y12 U71122 SUM12 1211
1212 		10S20 A12
10S20 Corresponding Standards(Same grade name, different standards)
1 ISO 683-9-1988
10S20 4
2 EN 10087-1999
10S20 1.0721
3 EN 10277-3-1999
10S20 1.0721
4 DIN 1651-1988
10S20 1.0721
5 DIN EN ISO 683-4-2018
10S20
6 ISO 683-4-2016
10S20
7 ISO 683-18-2014
10S20
8 EN 10277-2018
10S20 1.0721
9 NF EN 10087-1999
10S20 1.0721

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