--- title: "90CrSi5 — Tool steels for cold work" description: "90CrSi5: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/90crsi5 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/90crsi5.md cs: https://steelequivalents.com/cs/materiály/din-en/90crsi5.md de: https://steelequivalents.com/de/werkstoffe/din-en/90crsi5.md es: https://steelequivalents.com/es/materiales/din-en/90crsi5.md fr: https://steelequivalents.com/fr/matériaux/din-en/90crsi5.md hu: https://steelequivalents.com/hu/anyagok/din-en/90crsi5.md it: https://steelequivalents.com/it/materiali/din-en/90crsi5.md nl: https://steelequivalents.com/nl/materialen/din-en/90crsi5.md pl: https://steelequivalents.com/pl/materiały/din-en/90crsi5.md pt: https://steelequivalents.com/pt/materiais/din-en/90crsi5.md ru: https://steelequivalents.com/ru/материалы/din-en/90crsi5.md tr: https://steelequivalents.com/tr/malzemeler/din-en/90crsi5.md zh: https://steelequivalents.com/zh/材料/din-en/90crsi5.md ja: https://steelequivalents.com/ja/材料/din-en/90crsi5.md ar: https://steelequivalents.com/ar/المواد/din-en/90crsi5.md ko: https://steelequivalents.com/ko/재료/din-en/90crsi5.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/90crsi5.md hi: https://steelequivalents.com/hi/सामग्री/din-en/90crsi5.md content_hash: sha256:5345c81809591f59d93cb206d5a642ba2d2f293f05bc45d3233e0fd4e9687612 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/din-en/90crsi5 > Canonical URL: https://steelequivalents.com/materials/din-en/90crsi5 > 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. DIN / EN · Europe · 1 designation # 90CrSi5 90CrSi5 is a material in the category [Tool steels for cold work](/categories/tool-steels-for-cold-work "Tool steels for cold work"), held under material number 1.2108. Its recorded composition includes [C 0.85](/materials/material-no/1.1625 " — composition, equivalents and standards")–0.95%, Si 1.05–1.25%, P 0.035%, Cr 1.1–1.3% and Mn 0.6–0.8%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.2108**](/materials/material-no/1.2108 "Material no.: 1.2108") - [*Category* **Tool steels for cold work · 109 grades**](/categories/tool-steels-for-cold-work "Category: Tool steels for cold work · 109 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=4627440b-24c3-4823-80fd-07e050bfd584&designation=99f2467a-7e03-4fe1-b05e-234b231114f1 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/90crsi5.pdf "Datasheet as PDF") ## About Tool steels for cold work Cold-work tool steels are high-strength tool materials designed for shaping, cutting and forming operations carried out without significant heating of the workpiece. They are characterised by high hardness, wear resistance and the ability to retain a sharp or precise working edge, making them suitable for dies, punches, cutting tools and other tooling exposed to repeated mechanical contact. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Chemical composition 6 elements on file · weight % What this alloy is Fe Cr Si C Iron — the balance, never listed by a standard — 96 % Cr — 1.2 % Si — 1.2 % C — 0.9 % Traces & impurities · 0.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.85–0.95 | | Si | 1.05–1.25 | | Mn | 0.6–0.8 | | P | 0.035 | | S | 0.035 | | Cr | 1.1–1.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium 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 | 0,85-0,95 | 0.850 | 0.950 | Range | | Si | 1,05-1,25 | 1.050 | 1.250 | Range | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | Cr | 1,10-1,30 | 1.100 | 1.300 | Range | | Mn | 0,60-0,80 | 0.600 | 0.800 | 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: Ni, Mo. ## Physical & mechanical properties Density 7,85 g/cm³ Exact 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.2, a shared category, and a published range for Cr / Si that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [125CrSi5 1.2109 Cr 1,10-1,30 · Si 1,05-1,25 - ΔCr 0.00 - ΔSi 0.00 - 1 designations](/materials/din-en/125crsi5 "125CrSi5")[35WCrV7 1.2541 Cr 0,90-1,20 · Si 0,80-1,10 - ΔCr 0.15 - ΔSi 0.20 - 1 designations](/materials/din-en/35wcrv7 "35WCrV7")[1.2542 1.2542 Cr 0,90-1,20 · Si 0,80-1,10 - ΔCr 0.15 - ΔSi 0.20 - 25 designations](/materials/material-no/1.2542 "1.2542") ## 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=4627440b-24c3-4823-80fd-07e050bfd584&designation=99f2467a-7e03-4fe1-b05e-234b231114f1 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/90crsi5.pdf "Datasheet as PDF")