UNI · Italy · 72 designations

X6CrNiMoTi1712

X6CrNiMoTi1712 is a designation in UNI for the material held under material number 1.4571, also listed as X6CrNiMoTi17-12-2. It is a material in the category Stainless steels. We list 72 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, JIS, GB, GOST, UNI, SS, ČSN, STN, SRPS, JUS, PN, ÖNORM and SFS.

Material no. 1.4571
Category Stainless steels · 468 grades
Designations 72

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

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

72 designations · 19 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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 · 3

UNSUnited States · 1

S31635Indicative

AISI / SAEUnited States · 4

ASTMUnited States · 3

BSUnited Kingdom · 9

AFNORFrance · 6

UNESpain · 5

JISJapan · 4

GBChina · 6

GOSTRussia / CIS · 12

UNIItaly · 3

SSSweden · 3

ČSNCzechia · 3

STNSlovakia · 1

17 348Indicative

SRPSSerbia · 1

Č.4574Indicative

JUSformer Yugoslavia · 1

Č.4574Indicative

PNPoland · 4

ÖNORMAustria · 2

SFSFinland · 1

761Indicative

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

Chemical composition

8 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 65.1 %Cr — 17.5 %Ni — 12 %Mo — 2.3 %Traces & impurities · 3.1 %

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

Element	% by weight
	≤ 0.08
	≤ 1
	≤ 2
	0.045
	0.015
	16.5–18.5
	2–2.5
	10.5–13.5

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	≤0,08	—	0.080	Max
Si	≤1,00	—	1.000	Max
P	0,045	0.045	0.045	Exact
S	0,015	0.015	0.015	Exact
Cr	16,5-18,5	16.500	18.500	Range
Mn	≤2,00	—	2.000	Max
Ni	10,5-13,5	10.500	13.500	Range
Mo	2,00-2,50	2.000	2.500	Range

5xC≤0,70
5xC≤0,70
5xC≤0,70

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

Density8g/cm³Exact

Elastic modulus199GPaExact

Thermal expansion coefficient15.710^-6/KExact

Thermal conductivity15W/(m·K)Exact

Specific heat capacity0.5J/(kg·K)Exact

Electrical resistivity0.75nΩ·mExact

Transformation point Ac1735°CExact

Transformation point Ac3866°CExact · Ac3(Acm)

Transformation point Ar3840°CExact · Ar3(Arcm)

Transformation point Ar1685°CExact

Weldabilitynot suitable for weldingAs published: is not used.

Flake sensitivitysusceptibleAs published: predisposed

Temper brittlenessnot susceptibleAs published: not 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

5 conditions · 28 values

By delivery stateno delivery state statedsource splav

Delivery state	RmN/mm²	A5%	Z%	HB
Rolled stock hotrolled, GOST 1414-75	410	22	34	—
Rolled stock, GOST 1414-75	460 – 510	7	—	—
Rolled stock GOST 1414-75	—	—	—	160

By delivery stateno delivery state statedsource steeljis

Delivery state	RmN/mm²	ReN/mm²	A%	HB	HRB	HV
Plate/Sheet Hot-rolled	520	205	40	—	—	—
Hot-rolled	—	—	—	187	90	200

By delivery stateSoft annealedsource steelnumber

Delivery state	HB
Soft annealed	215

By delivery stateSolution annealedsource steelnumber

Delivery state	HB
Solution annealed	210

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)
20	7.83	198	—	—	—
100	—	183	11.9	78	470
200	—	—	12.5	67	—
300	—	166	—	—	479
400	—	—	13.6	—	517
500	—	—	14.2	—	—
600	—	—	—	—	571

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.

Heat treatment

Supply condition

Solution annealingd≤180

Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.

Source: www.caishuku.com

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.

X6CrNiMoNb17-12-21.4580

Cr 16,5-18,5 · Ni 10,5-13,5