NP steel grades — 8 designations
Every grade designated under NP, 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
8 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| Fe310-0 | 1.0035 | Unalloyed structural steels | — | 22 |
| FE360-C | 1.0114 | Unalloyed structural steels | ≤ 0.17 | 21 |
| FE430-B | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| FE430-C | 1.0143 | Unalloyed structural steels | ≤ 0.18 | 16 |
| Fe430-D | 1.0144 | Unalloyed structural steels | ≤ 0.18 | 22 |
| FE510-B | 1.0045 | Unalloyed structural steels | ≤ 0.24 | 17 |
| FE510-C | 1.0553 | Unalloyed structural steels | ≤ 0.2 | 20 |
| Fe510-DD | 1.0595 | Others | ≤ 0.2 | 7 |
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Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.