DIN / EN · Europe · 14 designations

X8CrTi25

X8CrTi25 is a material in the category Others, held under material number 1.4746. We list 13 designations recorded for this grade, in the standards AISI / SAE, AFNOR, JIS, GB, GOST, SS, ČSN and PN. Its recorded composition includes C ≤ 0.12%, Si ≤ 1%, P 0.04%, Cr 24–27% and Mn ≤ 1%. Recorded mechanical properties include Rm 440–530 N/mm², Re 295 N/mm², A5 14–20%, Z 45% and KCU 200 kJ/m²; these figures vary with the delivery condition and dimension. Its recorded density is 7.6–7.85 g/cm³. Further recorded physical values: E 109–204 GPa, λ 17 W/(m·K), α 10–12.2 ·10⁻⁶/K, cp 462 J/(kg·K) and ρ el. 710 nΩ·m; several of these are temperature-dependent. Its weldability is recorded as difficult.

Search Inquiry Datasheet as PDFPrint-ready A4 documentGenerating …Download startedTry again

About Others

These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions.

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

Also known as

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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

X8CrTi25This grade’s own name

AISI / SAEUnited States · 1

446Indicative

AFNORFrance · 1

Z10C24Indicative

JISJapan · 1

SUN446Indicative

GBChina · 1

1Cr25TiIndicative

GOSTRussia / CIS · 5

SSSweden · 1

2322Indicative

ČSNCzechia · 1

17153Indicative

PNPoland · 2

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

Chemical composition

6 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 72.3 %Cr — 25.5 %Si — 1 %Mn — 1 %Traces & impurities · 0.2 %

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

Element	% by weight
	≤ 0.12
	≤ 1
	≤ 1
	0.04
	0.03
	24–27 —

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	≤0,12	—	0.120	Max
Si	≤1,00	—	1.000	Max
P	0,04	0.040	0.040	Exact
S	0,03	0.030	0.030	Exact
Cr	24,0-27,0	24.000	27.000	Range
Mn	≤1,00	—	1.000	Max

≥4xC≤0,80
≥4xC≤0,80
≥4xC≤0,80

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, Mo.

Physical & mechanical properties

Density7,85g/cm³Exact

Weldabilitydifficult to weldAs published: hard weldability.

Temper brittlenesssusceptibleAs published: predisposed

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

4 conditions · 35 values

By delivery stateno delivery state statedsource splav

Delivery state	RmN/mm²	ReN/mm²	A5%	Z%
Pipe cooling strain, GOST 9941-81	461	—	17	—
Pipe hot strain, GOST 9940-81	441	—	17	—
Bar, GOST 5949-75	440	295	20	45

By heat-treated conditionno delivery state statedsource splav

Heat-treated condition	RmN/mm²	A5%	KCUkJ/m²
Sheet trick, GOST 7350-77	440	14	200

By heat-treated conditionno delivery state statedsource splav

Heat-treated condition	RmN/mm²	A5%
Sheet thin, GOST 5582-75	530	17

At temperatureno delivery state statedsource splav

Temperature°C	Densityg/cm³	Elastic modulusGPa	Thermal expansion coefficient10^-6/K	Thermal conductivityW/(m·K)	Specific heat capacityJ/(kg·K)	Electrical resistivitynΩ·m
20	7.6	204	—	17	—	710
100	—	200	—	—	462	—
200	—	197	10	—	—	—
300	—	189	10.6	—	—	—
400	—	176	10.8	—	—	—
500	—	164	11.3	—	—	—
600	—	140	11.5	—	—	—
700	—	124	11.6	—	—	—
800	—	119	11.6	—	—	—
900	—	109	12.2	—	—	—

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 / Si 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.

X2CrMnNiMoN26-5-41.4467

Cr 24,5-26,5 · Si ≤0,80