--- title: "53Cr21Mn9Ni4N — composition, equivalents and standards" description: "53Cr21Mn9Ni4N: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/gb/53cr21mn9ni4n language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/53cr21mn9ni4n.md cs: https://steelequivalents.com/cs/materiály/gb/53cr21mn9ni4n.md de: https://steelequivalents.com/de/werkstoffe/gb/53cr21mn9ni4n.md es: https://steelequivalents.com/es/materiales/gb/53cr21mn9ni4n.md fr: https://steelequivalents.com/fr/matériaux/gb/53cr21mn9ni4n.md hu: https://steelequivalents.com/hu/anyagok/gb/53cr21mn9ni4n.md it: https://steelequivalents.com/it/materiali/gb/53cr21mn9ni4n.md nl: https://steelequivalents.com/nl/materialen/gb/53cr21mn9ni4n.md pl: https://steelequivalents.com/pl/materiały/gb/53cr21mn9ni4n.md pt: https://steelequivalents.com/pt/materiais/gb/53cr21mn9ni4n.md ru: https://steelequivalents.com/ru/материалы/gb/53cr21mn9ni4n.md tr: https://steelequivalents.com/tr/malzemeler/gb/53cr21mn9ni4n.md zh: https://steelequivalents.com/zh/材料/gb/53cr21mn9ni4n.md ja: https://steelequivalents.com/ja/材料/gb/53cr21mn9ni4n.md ar: https://steelequivalents.com/ar/المواد/gb/53cr21mn9ni4n.md ko: https://steelequivalents.com/ko/재료/gb/53cr21mn9ni4n.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/53cr21mn9ni4n.md hi: https://steelequivalents.com/hi/सामग्री/gb/53cr21mn9ni4n.md content_hash: sha256:d50ae662b84494d833cd6ceec97760b74b426da763ae60bbb150fb8df0e1f9df 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/53cr21mn9ni4n > Canonical URL: https://steelequivalents.com/materials/gb/53cr21mn9ni4n > 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 # 53Cr21Mn9Ni4N 53Cr21Mn9Ni4N is a grade designated under GB. Its recorded composition includes C 0.48–0.58%, N 0.35–0.5%, Cr 20–22%, Mn 8–10% and Ni 3.25–4.5%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 380. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=61123fd1-ea7c-4576-8493-ebb1b839b747&designation=14163f2c-58ed-471e-8e41-6bf2ad4352ff "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/53cr21mn9ni4n.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 — 64.8 % Cr — 21 % Mn — 9 % Ni — 3.9 % Traces & impurities · 1.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.48–0.58 | | Si | ≤ 0.35 | | Mn | 8–10 — Unusual | | P | ≤ 0.04 | | S | ≤ 0.03 | | Cr | 20–22 | | Ni | 3.25–4.5 | | N | 0.35–0.5 — 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 | 0.48-0.58 | 0.480 | 0.580 | Range | | N | 0.35-0.5 | 0.350 | 0.500 | Range | | Si | ≤0.35 | — | 0.350 | Max | | P | ≤0.04 | — | 0.040 | Max | | S | ≤0.03 | — | 0.030 | Max | | Cr | 20-22 | 20.000 | 22.000 | Range | | Mn | 8-10 | 8.000 | 10.000 | Range | | Ni | 3.25-4.5 | 3.250 | 4.500 | 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 1 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. ## Heat treatment Supply condition - Solution annealing and Ageing Test specimen - Solution annealing Steel product Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMjMzOTI_ "Source: www.caishuku.com") ## 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=61123fd1-ea7c-4576-8493-ebb1b839b747&designation=14163f2c-58ed-471e-8e41-6bf2ad4352ff "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/53cr21mn9ni4n.pdf "Datasheet as PDF")