--- title: "1.8070 — Heat-resistant structural steels" description: "1.8070 is the material number of the grade also listed as 21CrMoV5-11. Category: Heat-resistant structural steels. Designations recorded for this grade: 7." canonical: https://steelequivalents.com/materials/material-no/1.8070 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.8070.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.8070.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.8070.md es: https://steelequivalents.com/es/materiales/número-de-material/1.8070.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.8070.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.8070.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.8070.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.8070.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.8070.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.8070.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.8070.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.8070.md zh: https://steelequivalents.com/zh/材料/材料编号/1.8070.md ja: https://steelequivalents.com/ja/材料/材料番号/1.8070.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.8070.md ko: https://steelequivalents.com/ko/재료/재료번호/1.8070.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.8070.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.8070.md content_hash: sha256:08f6f284bcecb72b58a561d07aee39f7db9f919d803cc7624ec20eb454355bac 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/1.8070 > Canonical URL: https://steelequivalents.com/materials/material-no/1.8070 > 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 · 7 designations # 1.8070 1.8070 is the material number of the grade also listed as 21CrMoV5-11. It is a material in the category Heat-resistant structural steels. We list 7 designations recorded for this grade, in the standards DIN / EN, AFNOR, GOST, PN and MSZ. - ***Material no.* **1.8070**** - [*Category* **Heat-resistant structural steels · 62 grades**](/categories/heat-resistant-structural-steels "Category: Heat-resistant structural steels · 62 grades") - *Designations* **7** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=61c305a3-d456-45ad-9734-6628147a00fa "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8070.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN 21CrMoV5-11 This grade’s own name](/materials/din-en/21crmov5-11 "DIN / EN 21CrMoV5-11") ## 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 7 designations · 5 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 - [21CrMoV5-11 This grade’s own name](/materials/din-en/21crmov5-11 "DIN / EN 21CrMoV5-11") AFNOR France · 1 - [20CDV5-07 Indicative](/materials/afnor/20cdv5-07 "AFNOR 20CDV5-07") GOST Russia / CIS · 3 - [21Kh1M1F Indicative](/materials/gost/21kh1m1f "GOST 21Kh1M1F") - [25Ch1M1F Indicative](/materials/gost/25ch1m1f "GOST 25Ch1M1F") - [25Х1М1Ф Indicative](/materials/gost/25kh1m1f "GOST 25Х1М1Ф") PN Poland · 1 - [21HMF Indicative](/materials/pn/21hmf "PN 21HMF") MSZ Hungary · 1 - [MCrMoV Indicative](/materials/msz/mcrmov "MSZ MCrMoV") 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 Cr Mo Ni Iron — the balance, never listed by a standard — 95.5 % Cr — 1.4 % Mo — 1.1 % Ni — 0.6 % Traces & impurities · 1.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.17–0.25 | | Si | 0.3–0.6 | | Mn | 0.3–0.6 | | P | 0.035 | | S | 0.035 | | Cr | 1.2–1.5 | | Mo | 1–1.2 — Unusual | | Ni | 0.6 | | V | 0.25–0.35 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium 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 | 0,17-0,25 | 0.170 | 0.250 | Range | | Si | 0,30-0,60 | 0.300 | 0.600 | Range | | P | 0,035 | 0.035 | 0.035 | Exact | | S | 0,035 | 0.035 | 0.035 | Exact | | V | 0,25-0,35 | 0.250 | 0.350 | Range | | Cr | 1,20-1,50 | 1.200 | 1.500 | Range | | Mn | 0,30-0,60 | 0.300 | 0.600 | Range | | Ni | 0,6 | 0.600 | 0.600 | Exact | | Mo | 1,00-1,20 | 1.000 | 1.200 | 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 computed from composition · °C Predicted Ae3 815 °C Predicted Ae1 754 °C Predicted Acm 515 °C Predicted Bs 492 °C These four temperatures are a CALCULATION from this grade's own composition, using the published Li, Niebuhr, Meekisho & Atteridge (1998) model — never a measurement, and computed from the UPPER BOUND of each element's specified range, not a mid-range figure. Where this grade also has a measured transformation point (Ac1, Ac3, Ar1, Ar3) on file, it is shown separately, in Physical & mechanical properties, and is never replaced by the predicted figures here — Ae (predicted, equilibrium) and Ac/Ar (measured, on heating or cooling) are different physical quantities and can differ by tens of degrees; a mismatch between the two is not an error in either. ## 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=61c305a3-d456-45ad-9734-6628147a00fa "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8070.pdf "Datasheet as PDF")