--- title: "X04Cr19Ni9 — composition, equivalents and standards" description: "X04Cr19Ni9: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/is/x04cr19ni9 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/is/x04cr19ni9.md cs: https://steelequivalents.com/cs/materiály/is/x04cr19ni9.md de: https://steelequivalents.com/de/werkstoffe/is/x04cr19ni9.md es: https://steelequivalents.com/es/materiales/is/x04cr19ni9.md fr: https://steelequivalents.com/fr/matériaux/is/x04cr19ni9.md hu: https://steelequivalents.com/hu/anyagok/is/x04cr19ni9.md it: https://steelequivalents.com/it/materiali/is/x04cr19ni9.md nl: https://steelequivalents.com/nl/materialen/is/x04cr19ni9.md pl: https://steelequivalents.com/pl/materiały/is/x04cr19ni9.md pt: https://steelequivalents.com/pt/materiais/is/x04cr19ni9.md ru: https://steelequivalents.com/ru/материалы/is/x04cr19ni9.md tr: https://steelequivalents.com/tr/malzemeler/is/x04cr19ni9.md zh: https://steelequivalents.com/zh/材料/is/x04cr19ni9.md ja: https://steelequivalents.com/ja/材料/is/x04cr19ni9.md ar: https://steelequivalents.com/ar/المواد/is/x04cr19ni9.md ko: https://steelequivalents.com/ko/재료/is/x04cr19ni9.md pt-br: https://steelequivalents.com/pt-br/materiais/is/x04cr19ni9.md hi: https://steelequivalents.com/hi/सामग्री/is/x04cr19ni9.md content_hash: sha256:ec670c30c93a59a4ba72f8a0dc6332bf7344b7a620d717ce15ca309dfc162400 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/is/x04cr19ni9 > Canonical URL: https://steelequivalents.com/materials/is/x04cr19ni9 > 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. IS · India · 1 designation # X04Cr19Ni9 X04Cr19Ni9 is a grade designated under IS. Its recorded composition includes C ≤ 0.08%, Si ≤ 1%, Cr 17.5–20%, Mn ≤ 2% and Ni 8–10.5%. No cross-standard equivalents are recorded for this grade yet. - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=95a707ca-045f-4cf8-9678-d050cd56c19d&designation=e273c27e-7e41-4c53-ae97-181ffcdd07dc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/is/x04cr19ni9.pdf "Datasheet as PDF") ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 68.8 % Cr — 18.8 % Ni — 9.3 % 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 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | ≤ 0.045 | | S | ≤ 0.03 | | Cr | 17.5–20 | | Ni | 8–10.5 | 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 | — | 0.080 | Max | | Si | ≤1.0 | — | 1.000 | Max | | P | ≤0.045 | — | 0.045 | Max | | S | ≤0.030 | — | 0.030 | Max | | Cr | 17.5-20.0 | 17.500 | 20.000 | Range | | Mn | ≤2.0 | — | 2.000 | Max | | Ni | 8.0-10.5 | 8.000 | 10.500 | 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. ## 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=95a707ca-045f-4cf8-9678-d050cd56c19d&designation=e273c27e-7e41-4c53-ae97-181ffcdd07dc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/is/x04cr19ni9.pdf "Datasheet as PDF")