--- title: "1.3288 — High-speed steels" description: "1.3288 is the material number of the grade also listed as PMHS3-3-1-8. Category: High-speed steels. Designations recorded for this grade: 2." canonical: https://steelequivalents.com/materials/material-no/1.3288 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.3288.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.3288.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.3288.md es: https://steelequivalents.com/es/materiales/número-de-material/1.3288.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.3288.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.3288.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.3288.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.3288.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.3288.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.3288.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.3288.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.3288.md zh: https://steelequivalents.com/zh/材料/材料编号/1.3288.md ja: https://steelequivalents.com/ja/材料/材料番号/1.3288.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.3288.md ko: https://steelequivalents.com/ko/재료/재료번호/1.3288.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.3288.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.3288.md content_hash: sha256:325abb6e37e2f2d0765c612e159a05f81becb9240151e23c1bc6300abad0551a 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/material-no/1.3288 > Canonical URL: https://steelequivalents.com/materials/material-no/1.3288 > 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. Material number · Europe · 2 designations # 1.3288 1.3288 is the material number of the grade also listed as PMHS3-3-1-8. It is a material in the category High-speed steels. We list 2 designations recorded for this grade, in the standards DIN / EN. - ***Material no.* **1.3288**** - [*Category* **High-speed steels · 59 grades**](/categories/high-speed-steels "Category: High-speed steels · 59 grades") - *Designations* **2** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=0a6a20c9-163d-4243-a1b3-b966cbb84efb "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.3288.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN PMHS3-3-1-8 This grade’s own name](/materials/din-en/pmhs3-3-1-8 "DIN / EN PMHS3-3-1-8") ## 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. ## Also known as 2 designations · 1 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 2 - [ASP2017 This grade’s own name Withdrawn](/materials/din-en/asp2017 "DIN / EN ASP2017") - [PMHS3-3-1-8 This grade’s own name](/materials/din-en/pmhs3-3-1-8 "DIN / EN PMHS3-3-1-8") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 11 elements on file · weight % What this alloy is Fe Co Cr Mo Iron — the balance, never listed by a standard — 77.8 % Co — 8.1 % Cr — 4.2 % Mo — 3.1 % Traces & impurities · 6.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.75–0.85 | | Si | 0.4–0.6 | | Mn | 0.2–0.4 | | P | 0.05 — Unusual | | S | 0.03 | | Cr | 3.8–4.5 | | Mo | 2.9–3.3 | | V | 0.9–1.2 | | W | 2.9–3.3 | | Co | 7.7–8.5 | | Nb | 0.9–1.2 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Vanadium Tungsten Cobalt Niobium 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 | 0,75-0,85 | 0.750 | 0.850 | Range | | Si | 0,40-0,60 | 0.400 | 0.600 | Range | | P | 0,05 | 0.050 | 0.050 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | V | 0,90-1,20 | 0.900 | 1.200 | Range | | Cr | 3,80-4,50 | 3.800 | 4.500 | Range | | Mn | 0,20-0,40 | 0.200 | 0.400 | Range | | Co | 7,70-8,50 | 7.700 | 8.500 | Range | | Nb | 0,90-1,20 | 0.900 | 1.200 | Range | | Mo | 2,90-3,30 | 2.900 | 3.300 | Range | | W | 2,90-3,30 | 2.900 | 3.300 | 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 Co / 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. [HS1-5-1-8 1.3270 Co 7,70-8,30 · Cr 3,80-4,50 - ΔCo 0.10 - ΔCr 0.00 - 1 designations](/materials/din-en/hs1-5-1-8 "HS1-5-1-8")[S 6-5-2-8 1.3222 Co 7,50-8,50 · Cr 4,00-4,50 - ΔCo 0.10 - ΔCr 0.10 - 1 designations](/materials/din-en/s-6-5-2-8 "S 6-5-2-8")[HS2-9-1-8 1.3247 Co 7,50-8,50 · Cr 3,50-4,50 - ΔCo 0.10 - ΔCr 0.15 - 28 designations](/materials/din-en/hs2-9-1-8 "HS2-9-1-8")[HS6-5-3-8 1.3244 Co 8,00-8,80 · Cr 3,80-4,50 - ΔCo 0.30 - ΔCr 0.00 - 1 designations](/materials/din-en/hs6-5-3-8 "HS6-5-3-8")[PMHS6-5-3-8 1.3294 Co 8,00-8,80 · Cr 3,80-4,50 - ΔCo 0.30 - ΔCr 0.00 - 2 designations](/materials/din-en/pmhs6-5-3-8 "PMHS6-5-3-8")[HS2-9-2-8 1.3249 Co 7,75-8,75 · Cr 3,50-4,20 - ΔCo 0.15 - ΔCr 0.30 - 9 designations](/materials/din-en/hs2-9-2-8 "HS2-9-2-8") ## 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=0a6a20c9-163d-4243-a1b3-b966cbb84efb "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.3288.pdf "Datasheet as PDF")