--- title: "1Cr17Ni8 — composition, equivalents and standards" description: "1Cr17Ni8 is a designation in GB for the grade also listed as X12CrNi17-7. Designations recorded for this grade: 3." canonical: https://steelequivalents.com/materials/gb/1cr17ni8 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/1cr17ni8.md cs: https://steelequivalents.com/cs/materiály/gb/1cr17ni8.md de: https://steelequivalents.com/de/werkstoffe/gb/1cr17ni8.md es: https://steelequivalents.com/es/materiales/gb/1cr17ni8.md fr: https://steelequivalents.com/fr/matériaux/gb/1cr17ni8.md hu: https://steelequivalents.com/hu/anyagok/gb/1cr17ni8.md it: https://steelequivalents.com/it/materiali/gb/1cr17ni8.md nl: https://steelequivalents.com/nl/materialen/gb/1cr17ni8.md pl: https://steelequivalents.com/pl/materiały/gb/1cr17ni8.md pt: https://steelequivalents.com/pt/materiais/gb/1cr17ni8.md ru: https://steelequivalents.com/ru/материалы/gb/1cr17ni8.md tr: https://steelequivalents.com/tr/malzemeler/gb/1cr17ni8.md zh: https://steelequivalents.com/zh/材料/gb/1cr17ni8.md ja: https://steelequivalents.com/ja/材料/gb/1cr17ni8.md ar: https://steelequivalents.com/ar/المواد/gb/1cr17ni8.md ko: https://steelequivalents.com/ko/재료/gb/1cr17ni8.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/1cr17ni8.md hi: https://steelequivalents.com/hi/सामग्री/gb/1cr17ni8.md content_hash: sha256:3628524fdf2a9969f23283e029e2934e6dfddbcf04a0f4c500f696de1c5f62dc 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/1cr17ni8 > Canonical URL: https://steelequivalents.com/materials/gb/1cr17ni8 > 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 · 3 designations # 1Cr17Ni8 1Cr17Ni8 is a designation in GB for the grade also listed as X12CrNi17-7. We list 3 designations recorded for this grade, in the standards DIN / EN, JIS and GB. - *Designations* **3** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=e8299d01-cca8-46ff-8fd8-1092345c4e7a&designation=2d96f82d-3f11-4b72-92d0-d777bb1b9841 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/1cr17ni8.pdf "Datasheet as PDF") ## Also known as 3 designations · 3 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 1 - [X12CrNi17-7 Indicative](/materials/din-en/x12crni17-7 "DIN / EN X12CrNi17-7") JIS Japan · 1 - [SUS301J1 Indicative](/materials/jis/sus301j1 "JIS SUS301J1") GB China · 1 - **1Cr17Ni8 This grade’s own name** Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 71.8 % Cr — 17 % Ni — 8 % Mn — 2 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.08–0.12 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | ≤ 0.035 | | S | ≤ 0.03 | | Cr | 16–18 | | Ni | 7–9 | 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 | 0.08-0.12 | 0.080 | 0.120 | Range | | Si | ≤1 | — | 1.000 | Max | | P | ≤0.035 | — | 0.035 | Max | | S | ≤0.03 | — | 0.030 | Max | | Cr | 16-18 | 16.000 | 18.000 | Range | | Mn | ≤2 | — | 2.000 | Max | | Ni | 7-9 | 7.000 | 9.000 | 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 3 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 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/azhlNWIxMTkyMzE_ "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=e8299d01-cca8-46ff-8fd8-1092345c4e7a&designation=2d96f82d-3f11-4b72-92d0-d777bb1b9841 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/1cr17ni8.pdf "Datasheet as PDF")