--- title: "HS7-5-3 — High-speed steels" description: "HS7-5-3: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/hs7-5-3 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/hs7-5-3.md cs: https://steelequivalents.com/cs/materiály/din-en/hs7-5-3.md de: https://steelequivalents.com/de/werkstoffe/din-en/hs7-5-3.md es: https://steelequivalents.com/es/materiales/din-en/hs7-5-3.md fr: https://steelequivalents.com/fr/matériaux/din-en/hs7-5-3.md hu: https://steelequivalents.com/hu/anyagok/din-en/hs7-5-3.md it: https://steelequivalents.com/it/materiali/din-en/hs7-5-3.md nl: https://steelequivalents.com/nl/materialen/din-en/hs7-5-3.md pl: https://steelequivalents.com/pl/materiały/din-en/hs7-5-3.md pt: https://steelequivalents.com/pt/materiais/din-en/hs7-5-3.md ru: https://steelequivalents.com/ru/материалы/din-en/hs7-5-3.md tr: https://steelequivalents.com/tr/malzemeler/din-en/hs7-5-3.md zh: https://steelequivalents.com/zh/材料/din-en/hs7-5-3.md ja: https://steelequivalents.com/ja/材料/din-en/hs7-5-3.md ar: https://steelequivalents.com/ar/المواد/din-en/hs7-5-3.md ko: https://steelequivalents.com/ko/재료/din-en/hs7-5-3.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/hs7-5-3.md hi: https://steelequivalents.com/hi/सामग्री/din-en/hs7-5-3.md content_hash: sha256:91358b45c1a5fc99a0bcd662d4b0ffe5465e073da2abb9a2cea7ca30169e393c 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/din-en/hs7-5-3 > Canonical URL: https://steelequivalents.com/materials/din-en/hs7-5-3 > 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 # HS7-5-3 HS7-5-3 is a material in the category [High-speed steels](/categories/high-speed-steels "High-speed steels"), held under material number 1.3347. Its recorded composition includes C 1.16–1.2%, V 2.6–2.8%, Cr 3.8–4.2%, Mo 5.1–5.5% and W 7–7.5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.3347**](/materials/material-no/1.3347 "Material no.: 1.3347") - [*Category* **High-speed steels · 59 grades**](/categories/high-speed-steels "Category: High-speed steels · 59 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=4b40d5e9-e3be-47f7-b180-6cb1da75f2d5&designation=6aae3081-f9c6-495b-96e2-0d43244df170 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/hs7-5-3.pdf "Datasheet as PDF") ## About High-speed steels High-speed steels are alloyed tool steels designed to retain hardness and cutting ability when tools heat up during high-speed machining. Their hot hardness and wear resistance make them suitable for cutting tools such as drills, milling cutters, taps and broaches. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Chemical composition 9 elements on file · weight % What this alloy is Fe W Mo Cr Iron — the balance, never listed by a standard — 78.8 % W — 7.3 % Mo — 5.3 % Cr — 4 % Traces & impurities · 4.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 1.16–1.2 | | Si | 0.2–0.55 | | Mn | 0.2–0.4 | | P | 0.03 | | S | 0.03 | | Cr | 3.8–4.2 | | Mo | 5.1–5.5 | | V | 2.6–2.8 | | W | 7–7.5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Vanadium Tungsten 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 | 1,16-1,20 | 1.160 | 1.200 | Range | | Si | 0,20-0,55 | 0.200 | 0.550 | Range | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | V | 2,60-2,80 | 2.600 | 2.800 | Range | | Cr | 3,80-4,20 | 3.800 | 4.200 | Range | | Mn | 0,20-0,40 | 0.200 | 0.400 | Range | | Mo | 5,10-5,50 | 5.100 | 5.500 | Range | | W | 7,00-7,50 | 7.000 | 7.500 | 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: Ni. ## 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. ## 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=4b40d5e9-e3be-47f7-b180-6cb1da75f2d5&designation=6aae3081-f9c6-495b-96e2-0d43244df170 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/hs7-5-3.pdf "Datasheet as PDF")