--- title: "12KHN2А — composition, equivalents and standards" description: "12KHN2А: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gost/12khn2a language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/12khn2a.md cs: https://steelequivalents.com/cs/materiály/gost/12khn2a.md de: https://steelequivalents.com/de/werkstoffe/gost/12khn2a.md es: https://steelequivalents.com/es/materiales/gost/12khn2a.md fr: https://steelequivalents.com/fr/matériaux/gost/12khn2a.md hu: https://steelequivalents.com/hu/anyagok/gost/12khn2a.md it: https://steelequivalents.com/it/materiali/gost/12khn2a.md nl: https://steelequivalents.com/nl/materialen/gost/12khn2a.md pl: https://steelequivalents.com/pl/materiały/gost/12khn2a.md pt: https://steelequivalents.com/pt/materiais/gost/12khn2a.md ru: https://steelequivalents.com/ru/материалы/gost/12khn2а.md tr: https://steelequivalents.com/tr/malzemeler/gost/12khn2a.md zh: https://steelequivalents.com/zh/材料/gost/12khn2a.md ja: https://steelequivalents.com/ja/材料/gost/12khn2a.md ar: https://steelequivalents.com/ar/المواد/gost/12khn2a.md ko: https://steelequivalents.com/ko/재료/gost/12khn2a.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/12khn2a.md hi: https://steelequivalents.com/hi/सामग्री/gost/12khn2a.md content_hash: sha256:b42d12395c222979c9cea9cdd91e3dff3f7e7882676a6471f8c0a9220bbd2b13 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/gost/12khn2a > Canonical URL: https://steelequivalents.com/materials/gost/12khn2a > 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. GOST · Russia / CIS · 1 designation # 12KHN2А 12KHN2А is a grade designated under GOST. Its recorded composition includes C 0.09–0.16%, Si 0.17–0.37%, Cr 0.6–0.9%, Mn 0.3–0.6% and Ni 1.5–1.9%. No cross-standard equivalents are recorded for this grade yet. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=8ded5ccd-67de-4b60-af57-29ea2c141c7a&designation=2d23f7af-4f31-44f5-b21c-e5dc3746d212 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/12khn2a.pdf "Datasheet as PDF") ## Chemical composition 7 elements on file · weight % What this alloy is Fe Ni Cr Mn Iron — the balance, never listed by a standard — 96.7 % Ni — 1.7 % Cr — 0.8 % Mn — 0.4 % Traces & impurities · 0.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.09–0.16 | | Si | 0.17–0.37 | | Mn | 0.3–0.6 | | P | ≤ 0.025 | | S | ≤ 0.025 | | Cr | 0.6–0.9 | | Ni | 1.5–1.9 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 | 0.09 - 0.16 | 0.090 | 0.160 | Range | | Si | 0.17 - 0.37 | 0.170 | 0.370 | Range | | P | max 0.025 | — | 0.025 | Max | | S | max 0.025 | — | 0.025 | Max | | Cr | 0.6 - 0.9 | 0.600 | 0.900 | Range | | Mn | 0.3 - 0.6 | 0.300 | 0.600 | Range | | Ni | 1.5 - 1.9 | 1.500 | 1.900 | 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. ## 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=8ded5ccd-67de-4b60-af57-29ea2c141c7a&designation=2d23f7af-4f31-44f5-b21c-e5dc3746d212 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/12khn2a.pdf "Datasheet as PDF")