Material number · Europe · 36 designations

1.4501

1.4501 is the material number of the grade also listed as X2CrNiMoCuWN25-7-4. It is a material in the category Stainless steels. We list 36 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, AFNOR, ISO, GOST, UNI and ČSN.

Material no. 1.4501
Category Stainless steels · 468 grades
Designations 36

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If you came for one of these

The most-used names for this grade.

About Stainless steels

Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability.

This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.

Also known as

36 designations · 9 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

X2CrNiMoCuWN25-7-4This grade’s own name

UNSUnited States · 2

AISI / SAEUnited States · 2

AFNORFrance · 2

ISOInternational · 1

CrNiMo25-7-4Indicative

GOSTRussia / CIS · 4

UNIItaly · 1

329SIndicative

ČSNCzechia · 1

42 2942Indicative

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

Chemical composition

11 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 60.7 %Cr — 25 %Ni — 7 %Mo — 3.5 %Traces & impurities · 3.8 %

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

Element	% by weight
	≤ 0.03
	≤ 1
	≤ 1
	0.035
	0.015
	24–26
	3–4
	6–8
	0.5–1
	0.5–1
	0.2–0.3

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	≤0,030	—	0.030	Max
N	0,20-0,30	0.200	0.300	Range
Si	≤1,00	—	1.000	Max
P	0,035	0.035	0.035	Exact
S	0,015	0.015	0.015	Exact
Cr	24,0-26,0	24.000	26.000	Range
Mn	≤1,00	—	1.000	Max
Ni	6,00-8,00	6.000	8.000	Range
Cu	0,50-1,00	0.500	1.000	Range
Mo	3,00-4,00	3.000	4.000	Range
W	0,50-1,00	0.500	1.000	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

This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.

Physical & mechanical properties

Density7,9g/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.

Properties by condition

2 conditions · 2 values

By delivery stateSoft annealedsource steelnumber

Delivery state	HB
Soft annealed	290

By delivery stateSolution annealedsource steelnumber

Delivery state	HB
Solution annealed	310

Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.

Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Cr / Ni 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.

X2CrNiMoN25-7-41.4410

Cr 24,0-26,0 · Ni 6,00-8,00