--- title: "G10100 — 8 equivalent grades, compared" description: "The designation G10100 is carried by 8 different grades. Compare them on the elements that actually differ, then open the one your print means." canonical: https://steelequivalents.com/materials/uns/g10100 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/uns/g10100.md cs: https://steelequivalents.com/cs/materiály/uns/g10100.md de: https://steelequivalents.com/de/werkstoffe/uns/g10100.md es: https://steelequivalents.com/es/materiales/uns/g10100.md fr: https://steelequivalents.com/fr/matériaux/uns/g10100.md hu: https://steelequivalents.com/hu/anyagok/uns/g10100.md it: https://steelequivalents.com/it/materiali/uns/g10100.md nl: https://steelequivalents.com/nl/materialen/uns/g10100.md pl: https://steelequivalents.com/pl/materiały/uns/g10100.md pt: https://steelequivalents.com/pt/materiais/uns/g10100.md ru: https://steelequivalents.com/ru/материалы/uns/g10100.md tr: https://steelequivalents.com/tr/malzemeler/uns/g10100.md zh: https://steelequivalents.com/zh/材料/uns/g10100.md ja: https://steelequivalents.com/ja/材料/uns/g10100.md ar: https://steelequivalents.com/ar/المواد/uns/g10100.md ko: https://steelequivalents.com/ko/재료/uns/g10100.md pt-br: https://steelequivalents.com/pt-br/materiais/uns/g10100.md hi: https://steelequivalents.com/hi/सामग्री/uns/g10100.md content_hash: sha256:54d60dd68fef379235bc949443add6896310e43468cdbc3795cbc5932e970a91 generated: 2026-09-22 --- > **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/uns/g10100 > Canonical URL: https://steelequivalents.com/materials/uns/g10100 > 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. UNS · United States · 8 grades # G10100 The designation G10100 is carried by 8 different grades. Compare them on the elements that actually differ, then open the one your print means. - *Matching grades* **8** - [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades") - [*Category* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades") [Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry") ## Which of the 8 do you want? This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero. | Grade | Material no. | Category | Designations | P% | C% | S% | Mn% | Si% | Cr% | |---|---|---|---|---|---|---|---|---|---| | [S205GT](/materials/din-en/s205gt "S205GT") | [1.0032](/materials/material-no/1.0032 "1.0032") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 4 | 0,05 | ≤0,15 | 0,05 | 0,20-0,50 | ≤0,30 | — | | [C10](/materials/din-en/c10 "C10") | [1.0301](/materials/material-no/1.0301 "1.0301") 1.0 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 63 | 0,045 | 0,07-0,13 | 0,045 | 0,30-0,60 | ≤0,40 | — | | [E235](/materials/din-en/e235 "E235") | [1.0308](/materials/material-no/1.0308 "1.0308") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 69 | 0,025 | ≤0,17 | 0,025 | ≤1,20 | ≤0,35 | — | | [C10D](/materials/din-en/c10d "C10D") | [1.0310](/materials/material-no/1.0310 "1.0310") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 33 | 0,035 | 0,08-0,13 | 0,035 | 0,30-0,60 | ≤0,30 | ≤0,20 | | [C10D2](/materials/din-en/c10d2 "C10D2") | [1.1114](/materials/material-no/1.1114 "1.1114") 1.1 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 3 | 0,02 | 0,08-0,12 | 0,025 | 0,30-0,50 | ≤0,30 | ≤0,10 | | [C10E](/materials/din-en/c10e "C10E") | [1.1121](/materials/material-no/1.1121 "1.1121") 1.1 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 61 | 0,035 | 0,07-0,13 | 0,035 | 0,30-0,60 | ≤0,40 | (≤0,40) | | [C10R](/materials/din-en/c10r "C10R") | [1.1207](/materials/material-no/1.1207 "1.1207") 1.1 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 7 | 0,035 | 0,07-0,13 | 0,020-0,040 | 0,30-0,60 | ≤0,40 | — | | [SAE 1010](/materials/din-en/sae1010 "SAE 1010") | [1.9301](/materials/material-no/1.9301 "1.9301") 1.9 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 3 | 0,03 | 0,08-0,13 | 0,05 | 0,30-0,60 | — | — | ## Not sure which one your print means? Search the catalogue by designation, material number or composition — every name on this page is itself a way in. [Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")