DIN / EN · Europe · 2 designations

GX40CrNi27-4

GX40CrNi27-4 is a material in the category Cast stainless steels, held under material number 1.4340. Its recorded composition includes C 0.3–0.5%, Si ≤ 2%, Cr 26–28%, Mn ≤ 1.5% and Ni 3.5–5.5%. We list one designation recorded for this grade, in the standard UNS. Its recorded density is 7.85 g/cm³.

Material no. 1.4340
Category Cast stainless steels · 87 grades
Designations 2

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About Cast stainless steels

Cast stainless steels are stainless-steel materials produced by casting, combining corrosion resistance with the ability to form complex component shapes. Their composition and mechanical behaviour vary by grade, and they are used for corrosion-resistant cast components such as pumps, valves and process equipment.

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

Also known as

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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

GX40CrNi27-4This grade’s own name

UNSUnited States · 1

J92615Indicative

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

Chemical composition

7 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 64.5 %Cr — 27 %Ni — 4.5 %Si — 2 %Traces & impurities · 2 %

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

Element	% by weight
	0.3–0.5
	≤ 2
	≤ 1.5
	0.045
	0.03
	26–28
	3.5–5.5

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	0,30-0,50	0.300	0.500	Range
Si	≤2,00	—	2.000	Max
P	0,045	0.045	0.045	Exact
S	0,03	0.030	0.030	Exact
Cr	26,0-28,0	26.000	28.000	Range
Mn	≤1,50	—	1.500	Max
Ni	3,50-5,50	3.500	5.500	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: Mo.

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 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.

GX40CrNiMo27-51.4464

Cr 26,0-28,0 · Ni 4,00-6,00