--- title: "NiCr20CoMo — High-temperature steels" description: "NiCr20CoMo: 1 equivalent designations across 1 standards, with the recorded chemical composition shown next to the source text." canonical: https://steelequivalents.com/materials/din-en/nicr20como language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/din-en/nicr20como.md cs: https://steelequivalents.com/cs/materiály/din-en/nicr20como.md de: https://steelequivalents.com/de/werkstoffe/din-en/nicr20como.md es: https://steelequivalents.com/es/materiales/din-en/nicr20como.md fr: https://steelequivalents.com/fr/matériaux/din-en/nicr20como.md hu: https://steelequivalents.com/hu/anyagok/din-en/nicr20como.md it: https://steelequivalents.com/it/materiali/din-en/nicr20como.md nl: https://steelequivalents.com/nl/materialen/din-en/nicr20como.md pl: https://steelequivalents.com/pl/materiały/din-en/nicr20como.md pt: https://steelequivalents.com/pt/materiais/din-en/nicr20como.md ru: https://steelequivalents.com/ru/материалы/din-en/nicr20como.md tr: https://steelequivalents.com/tr/malzemeler/din-en/nicr20como.md zh: https://steelequivalents.com/zh/材料/din-en/nicr20como.md ja: https://steelequivalents.com/ja/材料/din-en/nicr20como.md ar: https://steelequivalents.com/ar/المواد/din-en/nicr20como.md ko: https://steelequivalents.com/ko/재료/din-en/nicr20como.md pt-br: https://steelequivalents.com/pt-br/materiais/din-en/nicr20como.md hi: https://steelequivalents.com/hi/सामग्री/din-en/nicr20como.md content_hash: sha256:feb904dc256920ff9e5a375771272ecc180d440dd1ed69911c63abb026eee68d 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/nicr20como > Canonical URL: https://steelequivalents.com/materials/din-en/nicr20como > 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 # NiCr20CoMo NiCr20CoMo is a material in the category [High-temperature steels](/categories/high-temperature-steels "High-temperature steels"), held under material number 2.4982. Its recorded composition includes C ≤ 0.1%, Cr 18–21%, Fe ≤ 5%, Co 15–21% and Mo 4–5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³. - [*Material no.* **2.4982**](/materials/material-no/2.4982 "Material no.: 2.4982") - [*Category* **High-temperature steels · 40 grades**](/categories/high-temperature-steels "Category: High-temperature steels · 40 grades") - *Designations* **1** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=51fd171c-b8b8-46b0-96a2-f4116bb5b56c&designation=ab929d67-703d-4634-aa9d-f9a633429b49 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/nicr20como.pdf "Datasheet as PDF") ## About High-temperature steels High-temperature steels are steels designed to retain useful strength and structural stability during exposure to elevated temperatures. Their alloying systems provide resistance to oxidation, creep and loss of mechanical properties during prolonged heating, making them suitable for furnace components, heat exchangers, boilers and other hot-service equipment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Chemical composition 12 elements on file · weight % What this alloy is Fe Cr Co Mo Iron — the balance, never listed by a standard — 52.1 % Cr — 19.5 % Co — 18 % Mo — 4.5 % Traces & impurities · 5.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.1 | | Si | ≤ 1 | | Mn | ≤ 1 | | P | 0.02 | | S | 0.01 | | Cr | 18–21 | | Mo | 4–5 | | Ni | Balance | | Co | 15–21 | | Al | 0.8–2 | | Ti | 1.8–3 — Unusual | | Fe | ≤ 5 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Cobalt Aluminium Titanium Iron 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 | ≤0,10 | — | 0.100 | Max | | Al | 0,80-2,00 | 0.800 | 2.000 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | Ti | 1,80-3,00 | 1.800 | 3.000 | Range | | Cr | 18,0-21,0 | 18.000 | 21.000 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Fe | ≤5,00 | — | 5.000 | Max | | Co | 15,0-21,0 | 15.000 | 21.000 | Range | | Ni | Rest/Bal. | 40.870 | 60.370 | Balance | | Mo | 4,00-5,00 | 4.000 | 5.000 | 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 2.4, a shared category, and a published range for Ni / 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. [NiCr18Co 2.4983 Ni Rest/Bal. · Cr 17,0-20,0 - ΔNi 0.17 - ΔCr 1.00 - 4 designations](/materials/din-en/nicr18co "NiCr18Co")[NiCr19Fe19Nb5Mo3 2.4668 Ni 50,0-55,0 · Cr 17,0-21,0 - ΔNi 1.88 - ΔCr 0.50 - 29 designations](/materials/din-en/nicr19fe19nb5mo3 "NiCr19Fe19Nb5Mo3")[NiCr22Fe18Mo 2.4665 Ni Rest/Bal. · Cr 20,5-23,0 - ΔNi 3.61 - ΔCr 2.25 - 26 designations](/materials/din-en/nicr22fe18mo "NiCr22Fe18Mo") ## 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=51fd171c-b8b8-46b0-96a2-f4116bb5b56c&designation=ab929d67-703d-4634-aa9d-f9a633429b49 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/din-en/nicr20como.pdf "Datasheet as PDF")