ABNT NBR steel grades — 72 designations — Page 2
Every grade designated under ABNT NBR, 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
72 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| NBR 5008 CGR400 | 1.0114 | Unalloyed structural steels | ≤ 0.17 | 21 |
| NBR 5008 CGR400 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 5008 CGR500 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 5920 CFR500 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 5921 CFR400 | 1.0114 | Unalloyed structural steels | ≤ 0.17 | 21 |
| NBR 5921 CFR400 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 5921 CFR500 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 6648 CG26 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| NBR 6648 CG26 | 1.0037 | Unalloyed structural steels | ≤ 0.17 | 7 |
| NBR 6648 CG26 | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| NBR 6648 CG26 | 1.0167 | Unalloyed structural steels | ≤ 0.17 | 4 |
| NBR 6650 CF26 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| NBR 6650 CF26 | 1.0037 | Unalloyed structural steels | ≤ 0.17 | 7 |
| NBR 6650 CF26 | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| NBR 6650 CF26 | 1.0167 | Unalloyed structural steels | ≤ 0.17 | 4 |
| NBR 7007 AR350 | 1.0045 | Unalloyed structural steels | ≤ 0.24 | 17 |
| NBR 7007 AR350 COR | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| NBR 7007 AR415 | 1.0590 | Unalloyed structural steels | ≤ 0.2 | 2 |
| NBR 7007 MR250 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| NBR 7007 MR250 | 1.0037 | Unalloyed structural steels | ≤ 0.17 | 7 |
| NBR 7007 MR250 | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| NBR 7007 MR250 | 1.0167 | Unalloyed structural steels | ≤ 0.17 | 4 |
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Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.