--- title: "NiCr22Fe20Mo6Cu2Nb — Nickel and cobalt alloys" description: "NiCr22Fe20Mo6Cu2Nb in ISO: material number 2.4663, also listed as NiCr23Co12Mo. It is a material in the category Nickel and cobalt alloys." canonical: https://steelequivalents.com/materials/iso/nicr22fe20mo6cu2nb language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/iso/nicr22fe20mo6cu2nb.md cs: https://steelequivalents.com/cs/materiály/iso/nicr22fe20mo6cu2nb.md de: https://steelequivalents.com/de/werkstoffe/iso/nicr22fe20mo6cu2nb.md es: https://steelequivalents.com/es/materiales/iso/nicr22fe20mo6cu2nb.md fr: https://steelequivalents.com/fr/matériaux/iso/nicr22fe20mo6cu2nb.md hu: https://steelequivalents.com/hu/anyagok/iso/nicr22fe20mo6cu2nb.md it: https://steelequivalents.com/it/materiali/iso/nicr22fe20mo6cu2nb.md nl: https://steelequivalents.com/nl/materialen/iso/nicr22fe20mo6cu2nb.md pl: https://steelequivalents.com/pl/materiały/iso/nicr22fe20mo6cu2nb.md pt: https://steelequivalents.com/pt/materiais/iso/nicr22fe20mo6cu2nb.md ru: https://steelequivalents.com/ru/материалы/iso/nicr22fe20mo6cu2nb.md tr: https://steelequivalents.com/tr/malzemeler/iso/nicr22fe20mo6cu2nb.md zh: https://steelequivalents.com/zh/材料/iso/nicr22fe20mo6cu2nb.md ja: https://steelequivalents.com/ja/材料/iso/nicr22fe20mo6cu2nb.md ar: https://steelequivalents.com/ar/المواد/iso/nicr22fe20mo6cu2nb.md ko: https://steelequivalents.com/ko/재료/iso/nicr22fe20mo6cu2nb.md pt-br: https://steelequivalents.com/pt-br/materiais/iso/nicr22fe20mo6cu2nb.md hi: https://steelequivalents.com/hi/सामग्री/iso/nicr22fe20mo6cu2nb.md content_hash: sha256:bb003e520e69972f73345040586d4b72fcd758bf280ed0b3fbbd189a9f816228 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/iso/nicr22fe20mo6cu2nb > Canonical URL: https://steelequivalents.com/materials/iso/nicr22fe20mo6cu2nb > 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. ISO · International · 18 designations # NiCr22Fe20Mo6Cu2Nb NiCr22Fe20Mo6Cu2Nb is a designation in ISO for the material held under material number 2.4663, also listed as NiCr23Co12Mo. It is a material in the category Nickel and cobalt alloys. We list 18 designations recorded for this grade, in the standards DIN / EN, UNS, ASTM, BS, ISO, SAE AMS and GB. - [*Material no.* **2.4663**](/materials/material-no/2.4663 "Material no.: 2.4663") - [*Category* **Nickel and cobalt alloys · 87 grades**](/categories/nickel-and-cobalt-alloys "Category: Nickel and cobalt alloys · 87 grades") - *Designations* **18** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=b470bffa-4e35-4b2f-8dfb-d876132775ba&designation=0d0f9305-ff24-492e-8565-8bf60251205a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/iso/nicr22fe20mo6cu2nb.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN NiCr23Co12Mo This grade’s own name](/materials/din-en/nicr23co12mo "DIN / EN NiCr23Co12Mo") - [UNS N06617 This grade’s own name · 4 grades on that route](/materials/uns/n06617 "UNS N06617") ## About Nickel and cobalt alloys Nickel and cobalt alloys are metallic materials whose properties are developed through nickel-, cobalt-, or combined alloying systems. They are characterised by strong resistance to corrosion, oxidation, wear, and loss of strength at elevated temperatures, making them suitable for turbine components, chemical-processing equipment, and other demanding high-temperature applications. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 18 designations · 7 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 - [NiCr23Co12Mo This grade’s own name](/materials/din-en/nicr23co12mo "DIN / EN NiCr23Co12Mo") UNS United States · 1 - [N06617 This grade’s own name](/materials/uns/n06617 "UNS N06617") ASTM United States · 4 - [B 166 Indicative](/materials/astm/b166 "ASTM B 166") - [B168 Indicative](/materials/astm/b168 "ASTM B168") - [B546 Indicative](/materials/astm/b546 "ASTM B546") - [B564 Indicative](/materials/astm/b564 "ASTM B564") BS United Kingdom · 1 - [NA50 Indicative](/materials/bs/na50 "BS NA50") ISO International · 4 - [NiCr22Co12Mo9 Indicative](/materials/din-en/nicr22co12mo9 "ISO NiCr22Co12Mo9") - **NiCr22Fe20Mo6Cu2Nb Indicative** - [NW6007 Indicative](/materials/iso/nw6007 "ISO NW6007") - [NW6017 Indicative](/materials/iso/nw6017 "ISO NW6017") SAE AMS United States / Aerospace · 3 - [5887 Indicative](/materials/ams/5887 "SAE AMS 5887") - [5888 Indicative](/materials/ams/5888 "SAE AMS 5888") - [5889 Indicative](/materials/ams/5889 "SAE AMS 5889") GB China · 4 - [H06007 Indicative](/materials/gb/h06007 "GB H06007") - [HNS3304 Indicative](/materials/gb/hns3304 "GB HNS3304") - [NS3402 Indicative](/materials/gb/ns3402 "GB NS3402") - [W50276 Indicative](/materials/gb/w50276 "GB W50276") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 14 elements on file · weight % What this alloy is Fe Cr Co Mo Iron — the balance, never listed by a standard — 54.3 % Cr — 21.5 % Co — 12.5 % Mo — 9.3 % Traces & impurities · 2.5 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.05–0.1 | | Si | ≤ 0.2 | | Mn | ≤ 0.2 | | P | 0.01 | | S | 0.01 | | Cr | 20–23 | | Mo | 8.5–10 | | Ni | Balance | | Co | 11–14 | | Cu | ≤ 0.5 | | Al | 0.7–1.4 | | Ti | 0.2–0.6 | | B | ≤ 0.006 | | Fe | ≤ 2 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Cobalt Copper Aluminium Titanium Boron 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 | |---|---|---|---|---| | B | ≤0,006 | — | 0.006 | Max | | C | 0,05-0,10 | 0.050 | 0.100 | Range | | Al | 0,70-1,40 | 0.700 | 1.400 | Range | | Si | ≤0,20 | — | 0.200 | Max | | P | 0,01 | 0.010 | 0.010 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | Ti | 0,20-0,60 | 0.200 | 0.600 | Range | | Cr | 20,0-23,0 | 20.000 | 23.000 | Range | | Mn | ≤0,20 | — | 0.200 | Max | | Fe | ≤2,00 | — | 2.000 | Max | | Co | 11,0-14,0 | 11.000 | 14.000 | Range | | Ni | Rest/Bal. | 47.974 | 59.530 | Balance | | Cu | ≤0,50 | — | 0.500 | Max | | Mo | 8,50-10,0 | 8.500 | 10.000 | 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. [NiCr21Mo14W 2.4602 Ni Rest/Bal. · Cr 20,0-22,5 - ΔNi 2.74 - ΔCr 0.25 - 19 designations](/materials/din-en/nicr21mo14w "NiCr21Mo14W")[NiCr19CoMo 2.4973 Ni Rest/Bal. · Cr 18,0-20,0 - ΔNi 1.01 - ΔCr 2.50 - 10 designations](/materials/din-en/nicr19como "NiCr19CoMo")[NiCr 20 Co 18 Ti 2.4969 Ni Rest/Bal. · Cr 18,0-21,0 - ΔNi 2.55 - ΔCr 2.00 - 2 designations](/materials/din-en/nicr20co18ti "NiCr 20 Co 18 Ti")[NiCo20Cr20MoTi 2.4650 Ni Rest/Bal. · Cr 19,0-21,0 - ΔNi 3.24 - ΔCr 1.50 - 11 designations](/materials/din-en/nico20cr20moti "NiCo20Cr20MoTi")[NiCr22Mo14W 2.4635 Ni ≥49,0 · Cr 20,0-22,5 - ΔNi 4.75 - ΔCr 0.25 - 3 designations](/materials/din-en/nicr22mo14w "NiCr22Mo14W")[NiCr20Co13Mo4Ti3Al 2.4654 Ni Rest/Bal. · Cr 18,0-21,0 - ΔNi 3.23 - ΔCr 2.00 - 17 designations](/materials/din-en/nicr20co13mo4ti3al "NiCr20Co13Mo4Ti3Al") ## 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=b470bffa-4e35-4b2f-8dfb-d876132775ba&designation=0d0f9305-ff24-492e-8565-8bf60251205a "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/iso/nicr22fe20mo6cu2nb.pdf "Datasheet as PDF")