--- title: "17MnMoV6-4 — Heat-resistant structural steels" description: "17MnMoV6-4: 8 equivalent designations across 2 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/17mnmov6-4 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/17mnmov6-4.md cs: https://steelequivalents.com/cs/materiály/din-en/17mnmov6-4.md de: https://steelequivalents.com/de/werkstoffe/din-en/17mnmov6-4.md es: https://steelequivalents.com/es/materiales/din-en/17mnmov6-4.md fr: https://steelequivalents.com/fr/matériaux/din-en/17mnmov6-4.md hu: https://steelequivalents.com/hu/anyagok/din-en/17mnmov6-4.md it: https://steelequivalents.com/it/materiali/din-en/17mnmov6-4.md nl: https://steelequivalents.com/nl/materialen/din-en/17mnmov6-4.md pl: https://steelequivalents.com/pl/materiały/din-en/17mnmov6-4.md pt: https://steelequivalents.com/pt/materiais/din-en/17mnmov6-4.md ru: https://steelequivalents.com/ru/материалы/din-en/17mnmov6-4.md tr: https://steelequivalents.com/tr/malzemeler/din-en/17mnmov6-4.md zh: https://steelequivalents.com/zh/材料/din-en/17mnmov6-4.md ja: https://steelequivalents.com/ja/材料/din-en/17mnmov6-4.md ar: https://steelequivalents.com/ar/المواد/din-en/17mnmov6-4.md ko: https://steelequivalents.com/ko/재료/din-en/17mnmov6-4.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/17mnmov6-4.md hi: https://steelequivalents.com/hi/सामग्री/din-en/17mnmov6-4.md content_hash: sha256:b65cd3e4784a05f2782f171f05a4ddb646750af7664dd233b22cbf20c8fae003 generated: 2026-09-21 --- > **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/17mnmov6-4 > Canonical URL: https://steelequivalents.com/materials/din-en/17mnmov6-4 > 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 · 8 designations # 17MnMoV6-4 17MnMoV6-4 is a material in the category [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels"), held under material number 1.5403. Its recorded composition includes C ≤ 0.19%, Si 0.2–0.5%, Mn 1.4–1.7%, Ni 1% and Mo 0.2–0.5%. We list 7 designations recorded for this grade, in the standards UNS. Its recorded density is 7.85 g/cm³. - [*Material no.* **1.5403**](/materials/material-no/1.5403 "Material no.: 1.5403") - [*Category* **Heat-resistant structural steels · 62 grades**](/categories/heat-resistant-structural-steels "Category: Heat-resistant structural steels · 62 grades") - *Designations* **8** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=6f881d1b-f90c-40e5-833d-81f2387eea33&designation=638fdb2a-13d4-409f-be67-33bab298f391 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/17mnmov6-4.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [UNS K12766 This grade’s own name · 4 grades on that route](/materials/uns/k12766 "UNS K12766") ## About Heat-resistant structural steels Heat-resistant structural steels are structural steels designed to retain useful strength and dimensional stability at elevated temperatures. They are used for load-bearing components in hot-service equipment where mechanical performance must be maintained during heating. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 8 designations · 2 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 · 1 - **17MnMoV6-4 This grade’s own name** UNS United States · 7 - [K12022 Indicative](/materials/uns/k12022 "UNS K12022") - [K12039 Indicative](/materials/uns/k12039 "UNS K12039") - [K12042 Indicative](/materials/uns/k12042 "UNS K12042") - [K12529 Indicative](/materials/uns/k12529 "UNS K12529") - [K12539 Indicative](/materials/uns/k12539 "UNS K12539") - [K12554 Indicative](/materials/uns/k12554 "UNS K12554") - [K12766 This grade’s own name](/materials/uns/k12766 "UNS K12766") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Mn Ni Si Iron — the balance, never listed by a standard — 96.3 % Mn — 1.5 % Ni — 1 % Si — 0.4 % Traces & impurities · 0.8 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.19 | | Si | 0.2–0.5 | | Mn | 1.4–1.7 | | P | 0.035 | | S | 0.035 | | Mo | 0.2–0.5 | | Ni | 1 — Unusual | | V | ≤ 0.19 | | N | 0.02 | Carbon Silicon Manganese Phosphorus Sulfur Molybdenum Nickel Vanadium Nitrogen 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 | ≤0,19 | — | 0.190 | Max | | N | 0,02 | 0.020 | 0.020 | Exact | | Si | 0,20-0,50 | 0.200 | 0.500 | Range | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | V | ≤0,19 | — | 0.190 | Max | | Mn | 1,40-1,70 | 1.400 | 1.700 | Range | | Ni | 1 | 1.000 | 1.000 | Exact | | Mo | 0,20-0,50 | 0.200 | 0.500 | 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: Cr. ## 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=6f881d1b-f90c-40e5-833d-81f2387eea33&designation=638fdb2a-13d4-409f-be67-33bab298f391 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/17mnmov6-4.pdf "Datasheet as PDF")