--- title: "NBN steel grades — 100 designations — Page 2" description: "Steel grades designated under NBN, with chemical composition, mechanical properties and equivalents in other standards. 100 designations across 75…" canonical: https://steelequivalents.com/materials/nbn/page/2 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/nbn/page/2.md cs: https://steelequivalents.com/cs/materiály/nbn.md de: https://steelequivalents.com/de/werkstoffe/nbn.md es: https://steelequivalents.com/es/materiales/nbn.md fr: https://steelequivalents.com/fr/matériaux/nbn.md hu: https://steelequivalents.com/hu/anyagok/nbn.md it: https://steelequivalents.com/it/materiali/nbn.md nl: https://steelequivalents.com/nl/materialen/nbn.md pl: https://steelequivalents.com/pl/materiały/nbn.md pt: https://steelequivalents.com/pt/materiais/nbn.md ru: https://steelequivalents.com/ru/материалы/nbn.md tr: https://steelequivalents.com/tr/malzemeler/nbn.md zh: https://steelequivalents.com/zh/材料/nbn.md ja: https://steelequivalents.com/ja/材料/nbn.md ar: https://steelequivalents.com/ar/المواد/nbn.md ko: https://steelequivalents.com/ko/재료/nbn.md pt-br: https://steelequivalents.com/pt-br/materiais/nbn.md hi: https://steelequivalents.com/hi/सामग्री/nbn.md content_hash: sha256:7bd689d2b5c3224eefbc9928cfb18283e9839d1d2e0aa1268beff55feba7ed9b generated: 2026-09-24 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/nbn/page/2 > Canonical URL: https://steelequivalents.com/materials/nbn/page/2 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. NBN · 100 grades # 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 in other standards | |---|---|---|---|---| | [C55-1](/materials/nbn/c55-1 "C55-1") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C55-2](/materials/nbn/c55-2 "C55-2") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C60-1](/materials/nbn/c60-1 "C60-1") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [C60-2](/materials/nbn/c60-2 "C60-2") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [D37-1.2](/materials/nbn/d37-1-2 "D37-1.2") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [D42-1](/materials/nbn/d42-1 "D42-1") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant structural steels | ≤ 0.2 | 20 | | [D42-2](/materials/nbn/d42-2 "D42-2") | [1.0426](/materials/material-no/1.0426 "1.0426") | Aging resistant steels | 0.08–0.2 | 17 | | [E37-1.2](/materials/nbn/e37-1-2 "E37-1.2") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [FE310-0](/materials/bs/fe310-0 "FE310-0") | [1.0035](/materials/material-no/1.0035 "1.0035") | Unalloyed structural steels | — | 22 | | [FE360B](/materials/une/fe360b "FE360B") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [FE360B](/materials/une/fe360b "FE360B") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [FE360B](/materials/une/fe360b "FE360B") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [FE360BFN](/materials/uni/fe360bfn "FE360BFN") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [FE360BFU](/materials/bs/fe360bfu "FE360BFU") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [FE430BFN](/materials/uni/fe430bfn "FE430BFN") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [FE430D1FF](/materials/bs/fe430d1ff "FE430D1FF") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [FE430D1FF](/materials/bs/fe430d1ff "FE430D1FF") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [FE490-2FN](/materials/bs/fe490-2fn "FE490-2FN") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [FE490-2FN](/materials/bs/fe490-2fn "FE490-2FN") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [FE510D1FF](/materials/bs/fe510d1ff "FE510D1FF") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [FE510D1FF](/materials/bs/fe510d1ff "FE510D1FF") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [FE590-2FN](/materials/bs/fe590-2fn "FE590-2FN") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [FE590-2FN](/materials/bs/fe590-2fn "FE590-2FN") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [FED1FF](/materials/nbn/fed1ff "FED1FF") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [FED1FF](/materials/nbn/fed1ff "FED1FF") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [FED1FF](/materials/nbn/fed1ff "FED1FF") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [FED1FF](/materials/nbn/fed1ff "FED1FF") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [FGG10](/materials/nbn/fgg10 "FGG10") | [EN-JL1010](/materials/material-no/en-jl1010 "EN-JL1010") | Others | — | 16 | | [FGG15](/materials/nbn/fgg15 "FGG15") | [EN-JL1020](/materials/material-no/en-jl1020 "EN-JL1020") | Others | — | 22 | | [FGG20](/materials/nbn/fgg20 "FGG20") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [FGG25](/materials/nbn/fgg25 "FGG25") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [FGG30](/materials/nbn/fgg30 "FGG30") | [EN-JL1050](/materials/material-no/en-jl1050 "EN-JL1050") | Others | — | 22 | | [FGG35](/materials/nbn/fgg35 "FGG35") | [EN-JL1060](/materials/material-no/en-jl1060 "EN-JL1060") | Others | — | 21 | | [FNG38-17](/materials/nbn/fng38-17 "FNG38-17") | [EN-JS1030](/materials/material-no/en-js1030 "EN-JS1030") | Others | — | 17 | | [FNG38-17](/materials/nbn/fng38-17 "FNG38-17") | [EN-JS1072](/materials/material-no/en-js1072 "EN-JS1072") | Others | — | 17 | | [FNG38-17](/materials/nbn/fng38-17 "FNG38-17") | [EN-JS1073](/materials/material-no/en-js1073 "EN-JS1073") | Others | — | 17 | | [FNG50-7](/materials/nbn/fng50-7 "FNG50-7") | [EN-JS1082](/materials/material-no/en-js1082 "EN-JS1082") | Others | — | 20 | | [FNG50-7](/materials/nbn/fng50-7 "FNG50-7") | [EN-JS1083](/materials/material-no/en-js1083 "EN-JS1083") | Others | — | 20 | | [FNG60-2](/materials/nbn/fng60-2 "FNG60-2") | [EN-JS1060](/materials/material-no/en-js1060 "EN-JS1060") | Others | — | 20 | | [FNG60-2](/materials/nbn/fng60-2 "FNG60-2") | [EN-JS1092](/materials/material-no/en-js1092 "EN-JS1092") | Others | — | 20 | | [FNG60-2](/materials/nbn/fng60-2 "FNG60-2") | [EN-JS1093](/materials/material-no/en-js1093 "EN-JS1093") | Others | — | 20 | | [FNG70-2](/materials/nbn/fng70-2 "FNG70-2") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [FNG70-2](/materials/nbn/fng70-2 "FNG70-2") | [EN-JS1103](/materials/material-no/en-js1103 "EN-JS1103") | Others | — | 21 | | [FNG80-2](/materials/nbn/fng80-2 "FNG80-2") | [EN-JS1080](/materials/material-no/en-js1080 "EN-JS1080") | Others | — | 16 | | [PAE250](/materials/nbn/pae250 "PAE250") | [1.0021](/materials/material-no/1.0021 "1.0021") | Unalloyed structural steels | ≤ 0.2 | 3 | | [PAE270](/materials/nbn/pae270 "PAE270") | [1.0023](/materials/material-no/1.0023 "1.0023") | Unalloyed structural steels | ≤ 0.24 | 3 | | [PAE320](/materials/nbn/pae320 "PAE320") | [1.0046](/materials/material-no/1.0046 "1.0046") | Unalloyed structural steels | ≤ 0.24 | 2 | | [PAE360](/materials/nbn/pae360 "PAE360") | [1.0083](/materials/material-no/1.0083 "1.0083") | Unalloyed structural steels | ≤ 0.24 | 3 | | [PAE390](/materials/nbn/pae390 "PAE390") | [1.0522](/materials/material-no/1.0522 "1.0522") | Others | ≤ 0.24 | 2 | | [PAE420](/materials/nbn/pae420 "PAE420") | [1.0523](/materials/material-no/1.0523 "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. [Previous](/materials/nbn "Previous") Page 2 of 2