NBN steel grades — 100 designations — Page 2
Every grade designated under NBN, 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
100 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| C55-1 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| C55-2 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| C60-1 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| C60-2 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| D37-1.2 | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| D42-1 | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| D42-2 | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| E37-1.2 | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| FE310-0 | 1.0035 | Unalloyed structural steels | — | 22 |
| FE360B | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| FE360B | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| FE360B | 1.0028 | Unalloyed structural steels | ≤ 0.15 | 18 |
| FE360BFN | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| FE360BFU | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| FE430BFN | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| FE430D1FF | 1.0144 | Unalloyed structural steels | ≤ 0.18 | 22 |
| FE430D1FF | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| FE490-2FN | 1.0050 | Unalloyed structural steels | — | 23 |
| FE490-2FN | 1.0050 | Unalloyed structural steels | — | 23 |
| FE510D1FF | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| FE510D1FF | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| FE590-2FN | 1.0060 | Unalloyed structural steels | — | 21 |
| FE590-2FN | 1.0060 | Unalloyed structural steels | — | 21 |
| FED1FF | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| FED1FF | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| FED1FF | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| FED1FF | 1.0028 | Unalloyed structural steels | ≤ 0.15 | 18 |
| FGG10 | EN-JL1010 | Others | — | 16 |
| FGG15 | EN-JL1020 | Others | — | 22 |
| FGG20 | EN-JL1030 | Others | — | 22 |
| FGG25 | EN-JL1040 | Others | — | 22 |
| FGG30 | EN-JL1050 | Others | — | 22 |
| FGG35 | EN-JL1060 | Others | — | 21 |
| FNG38-17 | EN-JS1030 | Others | — | 17 |
| FNG38-17 | EN-JS1072 | Others | — | 17 |
| FNG38-17 | EN-JS1073 | Others | — | 17 |
| FNG50-7 | EN-JS1082 | Others | — | 20 |
| FNG50-7 | EN-JS1083 | Others | — | 20 |
| FNG60-2 | EN-JS1060 | Others | — | 20 |
| FNG60-2 | EN-JS1092 | Others | — | 20 |
| FNG60-2 | EN-JS1093 | Others | — | 20 |
| FNG70-2 | EN-JS1102 | Others | — | 21 |
| FNG70-2 | EN-JS1103 | Others | — | 21 |
| FNG80-2 | EN-JS1080 | Others | — | 16 |
| PAE250 | 1.0021 | Unalloyed structural steels | ≤ 0.2 | 3 |
| PAE270 | 1.0023 | Unalloyed structural steels | ≤ 0.24 | 3 |
| PAE320 | 1.0046 | Unalloyed structural steels | ≤ 0.24 | 2 |
| PAE360 | 1.0083 | Unalloyed structural steels | ≤ 0.24 | 3 |
| PAE390 | 1.0522 | Others | ≤ 0.24 | 2 |
| PAE420 | 1.0523 | Others | ≤ 0.24 | 2 |
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.