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SS · 373 grades

SS steel grades — 373 designations — Page 2

Every grade designated under SS, with the material number it maps to, what kind of steel it is, its carbon window and how many other standards carry it. Open a grade for its full composition, properties and its designations in other standards. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute.

Also known as

373 designations
GradeMaterial no.CategoryC% by weightAlso inother standards
1311 1.0036Unalloyed structural steels≤ 0.1719
1311 1.0028Unalloyed structural steels≤ 0.1518
1312 1.0028Unalloyed structural steels≤ 0.1518
1312 1.0114Unalloyed structural steels≤ 0.1721
1312 1.0038Unalloyed structural steels≤ 0.1726
1312 1.0036Unalloyed structural steels≤ 0.1720
1312 1.0036Unalloyed structural steels≤ 0.1719
1312-00 1.0038Unalloyed structural steels≤ 0.1726
1313 1.0038Unalloyed structural steels≤ 0.1726
1313 1.0036Unalloyed structural steels≤ 0.1720
1313 1.0036Unalloyed structural steels≤ 0.1719
1313 1.0028Unalloyed structural steels≤ 0.1518
1313 1.0116Unalloyed structural steels≤ 0.1712
1330 1.0345Heat-resistant structural steels≤ 0.1618
1330 1.8945Weathering steels≤ 0.1216
1330-01 1.0345Heat-resistant structural steels≤ 0.1618
1332 1.8945Weathering steels≤ 0.1216
1350 1.0401Case hardening steels0.12–0.1823
1370 1.1140Case hardening steels0.12–0.187
1370 1.1141Case hardening steels0.12–0.1820
1370 1.0401Case hardening steels0.12–0.1823
1411 1.0044Unalloyed structural steels≤ 0.2126
1411 1.0144Unalloyed structural steels≤ 0.1822
1412 1.0044Unalloyed structural steels≤ 0.2126
1412 1.0144Unalloyed structural steels≤ 0.1822
1414 1.0144Unalloyed structural steels≤ 0.1822
1414 1.0044Unalloyed structural steels≤ 0.2126
1414-00 1.0144Unalloyed structural steels≤ 0.1822
1414-01 1.0145Unalloyed structural steels≤ 0.188
1430 1.0425Heat-resistant structural steels≤ 0.220
1430 1.0426Aging resistant steels0.08–0.217
1431 1.0425Heat-resistant structural steels≤ 0.220
1431 1.0426Aging resistant steels0.08–0.217
1432 1.0426Aging resistant steels0.08–0.217
1432 1.0425Heat-resistant structural steels≤ 0.220
1450 1.0402Quenched and tempered steels0.17–0.2424
1450 1.0406Quenched and tempered steels0.22–0.2920
1505 1.0551Unalloyed structural steels≤ 0.2410
1550 1.0501Quenched and tempered steels0.32–0.3923
1550 1.0050Unalloyed structural steels23
1550 1.0050Unalloyed structural steels23
1550-00 1.0050Unalloyed structural steels23
1550-00 1.0050Unalloyed structural steels23
1550-01 1.0050Unalloyed structural steels23
1550-01 1.0050Unalloyed structural steels23
1555 1.0511Quenched and tempered steels0.37–0.4421
1572 1.1181Quenched and tempered steels0.32–0.3920
1572 1.1183Steels for surface hardening0.33–0.397
1572 1.0501Quenched and tempered steels0.32–0.3923
1572 1.1180Quenched and tempered steels0.32–0.3911

This grade’s own name — recorded in our sources as this grade’s own designation under that standard.
Indicative — taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.
Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.