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
Category Nickel and cobalt alloys · 87 grades
Designations 18

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The most-used names for this grade.

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 namerecorded in our sources as this grade’s own designation under that standard.

Indicativetaken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.

Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

DIN / ENEurope · 1

NiCr23Co12MoThis grade’s own name

UNSUnited States · 1

N06617This grade’s own name

ASTMUnited States · 4

BSUnited Kingdom · 1

NA50Indicative

ISOInternational · 4

SAE AMSUnited States / Aerospace · 3

GBChina · 4

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

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
	0.05–0.1
	≤ 0.2
	≤ 0.2
	0.01
	0.01
	20–23
	8.5–10
	Balance
	11–14
	≤ 0.5
	0.7–1.4
	0.2–0.6
	≤ 0.006
	≤ 2

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 publishedsource 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

Density7,85g/cm³Exact

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.

NiCr21Mo14W2.4602

Ni Rest/Bal. · Cr 20,0-22,5