DIN / EN · Europe · 2 designations

X3CrNiCuTi12-9

X3CrNiCuTiNb12-9 is a material in the category Stainless steels, held under material number 1.4543. Its recorded composition includes C ≤ 0.03%, Ti 0.9–1.4%, Cr 11–12.5%, Ni 7.5–9.5% and Cu 1.5–2.5%. We list one designation recorded for this grade, in the standard DIN / EN. Its recorded density is 7.76 g/cm³.

Material no. 1.4543
Category Stainless steels · 468 grades
Designations 2

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If you came for one of these

The most-used names for this grade.

DIN / ENX3CrNiCuTiNb12-9This grade’s own name

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

2 designations · 1 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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 · 2

X3CrNiCuTi12-9This grade’s own nameWithdrawn
X3CrNiCuTiNb12-9This grade’s own name

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 — 74.7 %Cr — 11.8 %Ni — 8.5 %Cu — 2 %Traces & impurities · 3 %

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

Element	% by weight
	≤ 0.03
	≤ 0.5
	≤ 0.5
	0.02
	0.015
	11–12.5
	≤ 0.5
	7.5–9.5
	1.5–2.5
	0.9–1.4
	0.1–0.5

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	≤0,03	—	0.030	Max
Si	≤0,50	—	0.500	Max
P	0,02	0.020	0.020	Exact
S	0,015	0.015	0.015	Exact
Ti	0,90-1,40	0.900	1.400	Range
Cr	11,0-12,5	11.000	12.500	Range
Mn	≤0,50	—	0.500	Max
Ni	7,50-9,50	7.500	9.500	Range
Cu	1,50-2,50	1.500	2.500	Range
Nb	0,10-0,50	0.100	0.500	Range
Mo	≤0,50	—	0.500	Max

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

Density7,76g/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.

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.

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