Material number · Europe · 3 designations

2.4636

2.4636 is the material number of the grade also listed as NiCo15Cr15MoAlTi. It is a material in the category Nickel and cobalt alloys. We list 3 designations recorded for this grade, in the standards DIN / EN, AISI / SAE and AFNOR.

Material no. 2.4636
Category Nickel and cobalt alloys · 87 grades
Designations 3

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If you came for one of these

The most-used names for this grade.

DIN / ENNiCo15Cr15MoAlTiThis grade’s own name

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

3 designations · 3 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

NiCo15Cr15MoAlTiThis grade’s own name

AISI / SAEUnited States · 1

687Indicative

AFNORFrance · 1

NCKD 20 ATIndicative

Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.

Chemical composition

15 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 54.3 %Cr — 15 %Co — 15 %Al — 5 %Traces & impurities · 10.7 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

Element	% by weight
	0.12–0.2
	≤ 1
	≤ 1
	0.045 —
	0.03
	14–16
	3–5
	Balance
	13–17
	≤ 0.2
	4.5–5.5
	3.5–4.5 —
	0.01–0.025 —
	≤ 0.25
	≤ 1

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	0,01-0,025	0.010	0.025	Range
C	0,12-0,20	0.120	0.200	Range
Al	4,50-5,50	4.500	5.500	Range
Si	≤1,00	—	1.000	Max
P	0,045	0.045	0.045	Exact
S	0,03	0.030	0.030	Exact
Ti	3,50-4,50	3.500	4.500	Range
Cr	14,0-16,0	14.000	16.000	Range
Mn	≤1,00	—	1.000	Max
Fe	≤1,00	—	1.000	Max
Co	13,0-17,0	13.000	17.000	Range
Ni	Rest/Bal.	48.250	61.795	Balance
Cu	≤0,20	—	0.200	Max
Zr	≤0,25	—	0.250	Max
Mo	3,00-5,00	3.000	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

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.

NiMo16Cr15W2.4819

Ni Rest/Bal. · Cr 14,5-16,5