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GB · 1,318 grades

GB steel grades — 1318 designations — Page 6

Every grade designated under GB, 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. Unless marked, every name here is an indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 23 of 50 rows differ and carry a “This grade’s own name” mark.

Also known as

1318 designations
GradeMaterial no.CategoryC% by weightAlso inother standards
15 1.0038Unalloyed structural steels≤ 0.1726
15 1.0416Others0.15–0.217
15 1.9413Others0.15–0.24
15 1.0401Case hardening steels0.12–0.1823
15 1.1141Case hardening steels0.12–0.1820
15 This grade’s own name1.1132Cold extrusion steels0.13–0.175
158Cr12MoV This grade’s own name1.45–1.7
15Cr 1.7015Case hardening steels0.12–0.1815
15Cr12WMoV This grade’s own name0.12–0.18
15CrA 1.7015Case hardening steels0.12–0.1815
15CrMn 1.7131Case hardening steels0.14–0.1924
15CrMo 1.7337Heat-resistant structural steels0.13–0.29
15CrMo 1.7262Case hardening steels0.13–0.1718
15CrMoA This grade’s own name0.12–0.18
15CrMog 1.7262Case hardening steels0.13–0.1718
15CrMoR 1.7262Case hardening steels0.13–0.1718
15CrMoR(HIC) This grade’s own name0.08–0.18
15CrNiMoA This grade’s own name0.13–0.18
15F 1.0332Unalloyed structural steels≤ 0.1216
15Mn This grade’s own name0.12–0.18
15MnCuCr This grade’s own name0.1–0.19
15MnCuCr-QT This grade’s own name0.1–0.19
15MnNbR This grade’s own name≤ 0.18
15MnNiDR This grade’s own name≤ 0.18
15MnNiNbDR This grade’s own name≤ 0.18
15MnTi This grade’s own name0.12–0.18
15MnV This grade’s own name0.12–0.18
15MnVB This grade’s own name0.12–0.18
15MnVN This grade’s own name0.12–0.2
15MnVNR 1.8905Fine-grain structural steels≤ 0.214
15MnVNR 1.5218Others0.2–0.2313
15MnVR This grade’s own name≤ 0.18
16Cr20Ni14Si2 This grade’s own name≤ 0.2
16Cr23Ni13 This grade’s own name≤ 0.2
16Cr25N This grade’s own name≤ 0.2
16Cr25Ni20Si2 This grade’s own name≤ 0.2
16CuCr This grade’s own name0.12–0.2
16Mn 1.0553Unalloyed structural steels≤ 0.220
16Mn 1.0570Unalloyed structural steels≤ 0.220
16Mn 1.0570Unalloyed structural steels≤ 0.222
16MnCr 1.7131Case hardening steels0.14–0.1924
16MnDR 1.0570Unalloyed structural steels≤ 0.222
16MnDR 1.0570Unalloyed structural steels≤ 0.220
16Mng 1.0570Unalloyed structural steels≤ 0.222
16Mng 1.0570Unalloyed structural steels≤ 0.220
16MnL 1.0570Unalloyed structural steels≤ 0.222
16MnL 1.0570Unalloyed structural steels≤ 0.220
16MnNb This grade’s own name0.12–0.2
16MnR 1.0570Unalloyed structural steels≤ 0.222
16MnR 1.0570Unalloyed structural steels≤ 0.220

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.