--- title: "12Cr18Mn12Ni2N — composition, equivalents and standards" description: "12Cr18Mn12Ni2N: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gb/12cr18mn12ni2n language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/12cr18mn12ni2n.md cs: https://steelequivalents.com/cs/materiály/gb/12cr18mn12ni2n.md de: https://steelequivalents.com/de/werkstoffe/gb/12cr18mn12ni2n.md es: https://steelequivalents.com/es/materiales/gb/12cr18mn12ni2n.md fr: https://steelequivalents.com/fr/matériaux/gb/12cr18mn12ni2n.md hu: https://steelequivalents.com/hu/anyagok/gb/12cr18mn12ni2n.md it: https://steelequivalents.com/it/materiali/gb/12cr18mn12ni2n.md nl: https://steelequivalents.com/nl/materialen/gb/12cr18mn12ni2n.md pl: https://steelequivalents.com/pl/materiały/gb/12cr18mn12ni2n.md pt: https://steelequivalents.com/pt/materiais/gb/12cr18mn12ni2n.md ru: https://steelequivalents.com/ru/материалы/gb/12cr18mn12ni2n.md tr: https://steelequivalents.com/tr/malzemeler/gb/12cr18mn12ni2n.md zh: https://steelequivalents.com/zh/材料/gb/12cr18mn12ni2n.md ja: https://steelequivalents.com/ja/材料/gb/12cr18mn12ni2n.md ar: https://steelequivalents.com/ar/المواد/gb/12cr18mn12ni2n.md ko: https://steelequivalents.com/ko/재료/gb/12cr18mn12ni2n.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/12cr18mn12ni2n.md hi: https://steelequivalents.com/hi/सामग्री/gb/12cr18mn12ni2n.md content_hash: sha256:c17ca116d92e170951d0c495e02b014868bbc776fb244d40b2bcf2925e4fac74 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/gb/12cr18mn12ni2n > Canonical URL: https://steelequivalents.com/materials/gb/12cr18mn12ni2n > 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. GB · China · 1 designation # 12Cr18Mn12Ni2N 12Cr18Mn12Ni2N is a grade designated under GB. Its recorded composition includes C ≤ 0.15%, Si ≤ 1%, Cr 16.5–19%, Mn 11–14% and Ni 0.5–2.5%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 1105–2450 N/mm²; these figures vary with the delivery condition and dimension. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=68a600c1-87bf-41f6-a862-bf5a5031c62a&designation=f439f2d4-7b05-47d2-8594-b08d99aa7e6e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/12cr18mn12ni2n.pdf "Datasheet as PDF") ## Chemical composition 8 elements on file · weight % What this alloy is Fe Cr Mn Ni Iron — the balance, never listed by a standard — 66.7 % Cr — 17.8 % Mn — 12.5 % Ni — 1.5 % Traces & impurities · 1.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.15 | | Si | ≤ 1 | | Mn | 11–14 — Unusual | | P | ≤ 0.06 | | S | ≤ 0.03 | | Cr | 16.5–19 | | Ni | 0.5–2.5 | | N | 0.2–0.45 — Unusual | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Nitrogen 0.01 % 0.1 % 1 % 10 % 100 % The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other. | Element | As published source text, verbatim | Min% by weight | Max% by weight | Bound | |---|---|---|---|---| | C | ≤0.15 | — | 0.150 | Max | | N | 0.2-0.45 | 0.200 | 0.450 | Range | | Si | ≤1 | — | 1.000 | Max | | P | ≤0.06 | — | 0.060 | Max | | S | ≤0.03 | — | 0.030 | Max | | Cr | 16.5-19 | 16.500 | 19.000 | Range | | Mn | 11-14 | 11.000 | 14.000 | Range | | Ni | 0.5-2.5 | 0.500 | 2.500 | Range | The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred. ## Predicted transformation temperatures Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo. ## Physical & mechanical properties An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material. ## Properties by condition 0 conditions · 0 values 29 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition. ## Looking for this grade under another name? 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?material=68a600c1-87bf-41f6-a862-bf5a5031c62a&designation=f439f2d4-7b05-47d2-8594-b08d99aa7e6e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/12cr18mn12ni2n.pdf "Datasheet as PDF")