Grade 11SMn30
Corresponding Standard ISO 683-18-2014
Heat-treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Steel Products
Classification Carbon Steel
11SMn30 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value - - 0.9 - 0.27
Maximum Value 0.14 0.05 1.3 0.11 0.33
11SMn30 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) 510~810 ≥440 ≥6
10<t≤16 Cold drawn (+C) 490~760 ≥410 ≥7
16<t≤40 Cold drawn (+C) 460~710 ≥375 ≥8
40<t≤63 Cold drawn (+C) 400~650 ≥305 ≥9
63<t≤100 Cold drawn (+C) 360~630 ≥245 ≥9
16<t≤40 As-rolled + peeled (+SH) 380~570 ≤169
40<t≤63 As-rolled + peeled (+SH) 370~570 ≤169
63<t≤100 As-rolled + peeled (+SH) 360~520 ≤154
Approximate Comparison Table Free-Cutting Structural Steel
China Japan United States International Organization for Standardization Germany France European Standard
GB JIS SAE ISO DIN EN/DIN NF EN/NF EN Numerical Grade
Y15 SUM22 1215 11SMn30 9SMn28 S250 11SMn30 1.0715

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