GOST · Russia / CIS · 31 designations

4KH5V2FS

4KH5V2FS is a designation in GOST for the material held under material number 1.0912, also listed as 46Mn7. It is a material in the category Others. We list 31 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, JIS, GB, GOST, UNI, ČSN, PN and BDS.

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If you came for one of these

The most-used names for this grade.

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

31 designations · 12 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

46Mn7This grade’s own name

UNSUnited States · 2

AISI / SAEUnited States · 6

BSUnited Kingdom · 3

AFNORFrance · 1

C45EIndicative

JISJapan · 3

GBChina · 3

GOSTRussia / CIS · 7

UNIItaly · 1

C45EIndicative

ČSNCzechia · 2

PNPoland · 1

45GIndicative

BDSBulgaria · 1

45GIndicative

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 — 97.4 %Mn — 1.8 %C — 0.5 %Si — 0.3 %Traces & impurities · 0.1 %

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

Element	% by weight
	0.42–0.5
	0.15–0.35
	1.6–1.9
	0.05
	0.05
	0.007

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	0,42-0,50	0.420	0.500	Range
N	0,007	0.007	0.007	Exact
Si	0,15-0,35	0.150	0.350	Range
P	0,05	0.050	0.050	Exact
S	0,05	0.050	0.050	Exact
Mn	1,60-1,90	1.600	1.900	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: Ni, Cr, Mo.

Physical & mechanical properties

Density7,85g/cm³Exact

Transformation point Ac1735°CExact

Transformation point Ac3825°CExact · Ac3(Acm)

Transformation point Ar3470°CExact · Ar3(Arcm)

Transformation point Ar1370°CExact

Weldabilitydifficult to weldAs published: hard weldability.

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

3 conditions · 45 values

By heat-treated conditionno delivery state statedsource splav

Heat-treated condition	RmN/mm²	ReN/mm²	A5%	Z%	KCUkJ/m²
Bar, GOST 4543-71	1420	1275	7	35	390

By delivery stateno delivery state statedsource splav

Delivery state	HB
45KHN2MFА ( 45ХН2МФА ) (annealing) , GOST 4543-71	269

At temperatureno delivery state statedsource splav

Temperature°C	Elastic modulusGPa	Thermal expansion coefficient10^-6/K	Thermal conductivityW/(m·K)	Specific heat capacityJ/(kg·K)	Electrical resistivitynΩ·m
20	216	—	34	—	300
100	207	11	34	480	363
200	197	11.6	33	500	460
300	188	12.1	32	520	557
400	176	12.7	31	540	677
500	168	13.3	30	555	822
600	152	13.7	29	—	993
700	136	13.9	27	—	1160
800	128	11.9	26	—	—

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

Annealing
Normalizing and Temperingd≤100
Quenching and Temperingd=25
Annealing and Tempering and NormalizingSupply condition
Spheroidize annealingPlate and Strip

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 1.0, a shared category, and a published range for Mn / 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.

50Mn71.0913

Mn 1,60-2,00 · Si ≤0,40