--- title: "S 1-5-2 — High-speed steels" description: "S 1-5-2: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/s-1-5-2 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/s-1-5-2.md cs: https://steelequivalents.com/cs/materiály/din-en/s-1-5-2.md de: https://steelequivalents.com/de/werkstoffe/din-en/s-1-5-2.md es: https://steelequivalents.com/es/materiales/din-en/s-1-5-2.md fr: https://steelequivalents.com/fr/matériaux/din-en/s-1-5-2.md hu: https://steelequivalents.com/hu/anyagok/din-en/s-1-5-2.md it: https://steelequivalents.com/it/materiali/din-en/s-1-5-2.md nl: https://steelequivalents.com/nl/materialen/din-en/s-1-5-2.md pl: https://steelequivalents.com/pl/materiały/din-en/s-1-5-2.md pt: https://steelequivalents.com/pt/materiais/din-en/s-1-5-2.md ru: https://steelequivalents.com/ru/материалы/din-en/s-1-5-2.md tr: https://steelequivalents.com/tr/malzemeler/din-en/s-1-5-2.md zh: https://steelequivalents.com/zh/材料/din-en/s-1-5-2.md ja: https://steelequivalents.com/ja/材料/din-en/s-1-5-2.md ar: https://steelequivalents.com/ar/المواد/din-en/s-1-5-2.md ko: https://steelequivalents.com/ko/재료/din-en/s-1-5-2.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/s-1-5-2.md hi: https://steelequivalents.com/hi/सामग्री/din-en/s-1-5-2.md content_hash: sha256:5a1e19470ded878a44c38fb9c3c8d9ed279a020f9d44baca4e192808bd40a05d 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/s-1-5-2 > Canonical URL: https://steelequivalents.com/materials/din-en/s-1-5-2 > 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 # S 1-5-2 S 1-5-2 is a material in the category [High-speed steels](/categories/high-speed-steels "High-speed steels"), held under material number 1.3392. Its recorded composition includes C 0.8%, Si 0.8%, V 1.8%, Cr 4.5% and Mo 5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.3392**](/materials/material-no/1.3392 "Material no.: 1.3392") - [*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=745793ce-cc52-4a0b-bec9-c49b69d764c8&designation=451f2e3a-4ae3-40b8-952a-a6813f20e509 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s-1-5-2.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 6 elements on file · weight % What this alloy is Fe Mo Cr V Iron — the balance, never listed by a standard — 86.4 % Mo — 5 % Cr — 4.5 % V — 1.8 % Traces & impurities · 2.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.8 | | Si | 0.8 | | Cr | 4.5 | | Mo | 5 | | V | 1.8 | | W | 0.7 | Carbon Silicon 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 | 0,8 | 0.800 | 0.800 | Exact | | Si | 0,8 | 0.800 | 0.800 | Exact | | V | 1,8 | 1.800 | 1.800 | Exact | | Cr | 4,5 | 4.500 | 4.500 | Exact | | Mo | 5 | 5.000 | 5.000 | Exact | | W | 0,7 | 0.700 | 0.700 | Exact | 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: Mn, 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. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.3, a shared category, and a published range for Mo / Cr 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. [S 6-5-2-8 1.3222 Mo 4,70-5,20 · Cr 4,00-4,50 - ΔMo 0.05 - ΔCr 0.25 - 1 designations](/materials/din-en/s-6-5-2-8 "S 6-5-2-8")[HS6-5-3-8 1.3244 Mo 4,70-5,30 · Cr 3,80-4,50 - ΔMo 0.00 - ΔCr 0.35 - 1 designations](/materials/din-en/hs6-5-3-8 "HS6-5-3-8")[HS1-5-1-8 1.3270 Mo 4,70-5,30 · Cr 3,80-4,50 - ΔMo 0.00 - ΔCr 0.35 - 1 designations](/materials/din-en/hs1-5-1-8 "HS1-5-1-8")[PMHS6-5-3-8 1.3294 Mo 4,70-5,30 · Cr 3,80-4,50 - ΔMo 0.00 - ΔCr 0.35 - 2 designations](/materials/din-en/pmhs6-5-3-8 "PMHS6-5-3-8")[1.3243 1.3243 Mo 4,70-5,20 · Cr 3,80-4,50 - ΔMo 0.05 - ΔCr 0.35 - 49 designations](/materials/material-no/1.3243 "1.3243")[HS6-5-2-5S 1.3245 Mo 4,70-5,20 · Cr 3,80-4,50 - ΔMo 0.05 - ΔCr 0.35 - 2 designations](/materials/din-en/hs6-5-2-5s "HS6-5-2-5S") ## 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=745793ce-cc52-4a0b-bec9-c49b69d764c8&designation=451f2e3a-4ae3-40b8-952a-a6813f20e509 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s-1-5-2.pdf "Datasheet as PDF")