--- title: "S18-1-1 — High-speed steels" description: "S18-1-1: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/s18-1-1 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/s18-1-1.md cs: https://steelequivalents.com/cs/materiály/din-en/s18-1-1.md de: https://steelequivalents.com/de/werkstoffe/din-en/s18-1-1.md es: https://steelequivalents.com/es/materiales/din-en/s18-1-1.md fr: https://steelequivalents.com/fr/matériaux/din-en/s18-1-1.md hu: https://steelequivalents.com/hu/anyagok/din-en/s18-1-1.md it: https://steelequivalents.com/it/materiali/din-en/s18-1-1.md nl: https://steelequivalents.com/nl/materialen/din-en/s18-1-1.md pl: https://steelequivalents.com/pl/materiały/din-en/s18-1-1.md pt: https://steelequivalents.com/pt/materiais/din-en/s18-1-1.md ru: https://steelequivalents.com/ru/материалы/din-en/s18-1-1.md tr: https://steelequivalents.com/tr/malzemeler/din-en/s18-1-1.md zh: https://steelequivalents.com/zh/材料/din-en/s18-1-1.md ja: https://steelequivalents.com/ja/材料/din-en/s18-1-1.md ar: https://steelequivalents.com/ar/المواد/din-en/s18-1-1.md ko: https://steelequivalents.com/ko/재료/din-en/s18-1-1.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/s18-1-1.md hi: https://steelequivalents.com/hi/सामग्री/din-en/s18-1-1.md content_hash: sha256:7dc2671e6b2e582ace2de2ddc4e072c963eff81e1db1072f7890b2ed290a28cb 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/s18-1-1 > Canonical URL: https://steelequivalents.com/materials/din-en/s18-1-1 > 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 # S18-1-1 S18-1-1 is a material in the category [High-speed steels](/categories/high-speed-steels "High-speed steels"), held under material number 1.3357. Its recorded composition includes C 0.7–0.78%, V 1–1.2%, Cr 3.8–4.5%, Mo 0.95–1.1% and W 17.5–18.5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.3357**](/materials/material-no/1.3357 "Material no.: 1.3357") - [*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=323b89d5-2477-46ab-ac31-cffab3926001&designation=0b3519da-f5c7-4fee-8644-0333e46c63f4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s18-1-1.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 Cr V Iron — the balance, never listed by a standard — 74.1 % W — 18 % Cr — 4.2 % V — 1.1 % Traces & impurities · 2.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.7–0.78 | | Si | ≤ 0.45 | | Mn | ≤ 0.4 | | P | 0.03 | | S | 0.03 | | Cr | 3.8–4.5 | | Mo | 0.95–1.1 | | V | 1–1.2 | | W | 17.5–18.5 | 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 | 0,70-0,78 | 0.700 | 0.780 | Range | | Si | ≤0,45 | — | 0.450 | Max | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | V | 1,00-1,20 | 1.000 | 1.200 | Range | | Cr | 3,80-4,50 | 3.800 | 4.500 | Range | | Mn | ≤0,40 | — | 0.400 | Max | | Mo | 0,95-1,10 | 0.950 | 1.100 | Range | | W | 17,5-18,5 | 17.500 | 18.500 | 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. ## 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 W / 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. [1.3255 1.3255 W 17,5-18,5 · Cr 3,80-4,50 - ΔW 0.00 - ΔCr 0.00 - 25 designations](/materials/material-no/1.3255 "1.3255")[HS18-1-2-15 1.3257 W 17,5-18,5 · Cr 3,80-4,50 - ΔW 0.00 - ΔCr 0.00 - 2 designations](/materials/din-en/hs18-1-2-15 "HS18-1-2-15")[HS18-1-2-10 1.3265 W 17,5-18,5 · Cr 3,80-4,50 - ΔW 0.00 - ΔCr 0.00 - 9 designations](/materials/din-en/hs18-1-2-10 "HS18-1-2-10")[1.3355 1.3355 W 17,2-18,7 · Cr 3,80-4,50 - ΔW 0.05 - ΔCr 0.00 - 43 designations](/materials/material-no/1.3355 "1.3355") ## 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=323b89d5-2477-46ab-ac31-cffab3926001&designation=0b3519da-f5c7-4fee-8644-0333e46c63f4 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/s18-1-1.pdf "Datasheet as PDF")