---
title: "G10120 — 5 equivalent grades, compared"
description: "The designation G10120 is carried by 5 different grades. Compare them on the elements that actually differ, then open the one your print means."
canonical: https://steelequivalents.com/materials/uns/g10120
language: en
robots: index, follow
og_type: website
type: material-detail
language_alternates:
  en: https://steelequivalents.com/materials/uns/g10120.md
  cs: https://steelequivalents.com/cs/materiály/uns/g10120.md
  de: https://steelequivalents.com/de/werkstoffe/uns/g10120.md
  es: https://steelequivalents.com/es/materiales/uns/g10120.md
  fr: https://steelequivalents.com/fr/matériaux/uns/g10120.md
  hu: https://steelequivalents.com/hu/anyagok/uns/g10120.md
  it: https://steelequivalents.com/it/materiali/uns/g10120.md
  nl: https://steelequivalents.com/nl/materialen/uns/g10120.md
  pl: https://steelequivalents.com/pl/materiały/uns/g10120.md
  pt: https://steelequivalents.com/pt/materiais/uns/g10120.md
  ru: https://steelequivalents.com/ru/материалы/uns/g10120.md
  tr: https://steelequivalents.com/tr/malzemeler/uns/g10120.md
  zh: https://steelequivalents.com/zh/材料/uns/g10120.md
  ja: https://steelequivalents.com/ja/材料/uns/g10120.md
  ar: https://steelequivalents.com/ar/المواد/uns/g10120.md
  ko: https://steelequivalents.com/ko/재료/uns/g10120.md
  pt-br: https://steelequivalents.com/pt-br/materiais/uns/g10120.md
  hi: https://steelequivalents.com/hi/सामग्री/uns/g10120.md
content_hash: sha256:8b59b9761db81d76b137ae6e49f25a26bb7012b59de0a8fcb8276653c56019a7
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/g10120
> Canonical URL: https://steelequivalents.com/materials/uns/g10120
> 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 · 5 grades

# G10120

The designation G10120 is carried by 5 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **5**
- [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades")
- [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades")

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")

## Which of the 5 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 | C% | P% | S% | Al% | Si% | Mn% |
|---|---|---|---|---|---|---|---|---|---|
| [C10C](/materials/din-en/c10c "C10C") | [1.0214](/materials/material-no/1.0214 "1.0214") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 6 | 0,08-0,12 | 0,025 | 0,025 | 0,020-0,060 | ≤0,10 | 0,30-0,50 |
| [C12D](/materials/din-en/c12d "C12D") | [1.0311](/materials/material-no/1.0311 "1.0311") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 5 | 0,10-0,15 | 0,035 | 0,035 | ≤0,01 | ≤0,30 | 0,30-0,60 |
| [C12D2](/materials/din-en/c12d2 "C12D2") | [1.1124](/materials/material-no/1.1124 "1.1124") 1.1 | [Others](/categories/others "Others") | 5 | 0,10-0,14 | 0,02 | 0,025 | ≤0,01 | ≤0,30 | 0,30-0,50 |
| [C12E](/materials/din-en/c12e "C12E") | [1.1130](/materials/material-no/1.1130 "1.1130") 1.1 | [Others](/categories/others "Others") | 6 | 0,10-0,16 | 0,035 | 0,035 | — | ≤0,30 | 0,30-0,60 |
| [SAE 1012](/materials/din-en/sae-1012 "SAE 1012") | [1.9311](/materials/material-no/1.9311 "1.9311") 1.9 | [Others](/categories/others "Others") | 5 | 0,10-0,15 | 0,03 | 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")