GB · China · 19 designations

NS3308

NS3308 is a designation in GB for the material held under material number 2.4602, also listed as NiCr21Mo14W. It is a material in the category Nickel and cobalt alloys. We list 19 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, AFNOR and GB.

Material no. 2.4602
Category Nickel and cobalt alloys · 87 grades
Designations 19

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If you came for one of these

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

19 designations · 6 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

NiCr21Mo14WThis grade’s own name

UNSUnited States · 2

AISI / SAEUnited States · 2

ASTMUnited States · 11

AFNORFrance · 1

NC 17 DWYIndicative

GBChina · 2

H06022Indicative
NS3308Indicative

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

Chemical composition

12 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 58.8 %Cr — 21.3 %Mo — 13.5 %W — 3 %Traces & impurities · 3.5 %

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

Element	% by weight
	≤ 0.01
	≤ 0.08
	≤ 0.5
	0.025
	0.015
	20–22.5
	12.5–14.5
	Balance
	≤ 0.35
	2.5–3.5
	≤ 2.5
	2–6

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
C	≤0,010	—	0.010	Max
Si	≤0,08	—	0.080	Max
P	0,025	0.025	0.025	Exact
S	0,015	0.015	0.015	Exact
V	≤0,35	—	0.350	Max
Cr	20,0-22,5	20.000	22.500	Range
Mn	≤0,50	—	0.500	Max
Fe	2,00-6,00	2.000	6.000	Range
Co	≤2,50	—	2.500	Max
Ni	Rest/Bal.	50.020	62.960	Balance
Mo	12,5-14,5	12.500	14.500	Range
W	2,50-3,50	2.500	3.500	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

Density8,63g/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.

NiCr 20 Co 18 Ti2.4969

Ni Rest/Bal. · Cr 18,0-21,0