GB · China · 7 designations

4CrW2Si

4CrW2Si is a designation in GB for the grade also listed as 35WCrV7. We list 7 designations recorded for this grade, in the standards DIN / EN, BS, JIS, GB, GOST and KS.

Designations 7

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Also known as

7 designations · 6 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

BSUnited Kingdom · 1

BS1Indicative

JISJapan · 1

SKS41Indicative

GBChina · 1

4CrW2SiThis grade’s own name

GOSTRussia / CIS · 1

4ХВ2СIndicative

KSSouth Korea · 1

SKS41Indicative

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

Chemical composition

9 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 94.4 %W — 2.3 %Cr — 1.2 %Si — 1 %Traces & impurities · 1.3 %

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

Element	% by weight
	0.35–0.45
	0.8–1.1
	≤ 0.4
	≤ 0.03
	≤ 0.025
	1–1.3
	0.1–0.2
	2–2.5
	≤ 0.25

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	0.35-0.45	0.350	0.450	Range
Si	0.8-1.1	0.800	1.100	Range
P	≤0.03	—	0.030	Max
S	≤0.025	—	0.025	Max
V	0.1-0.2	0.100	0.200	Range
Cr	1-1.3	1.000	1.300	Range
Mn	≤0.4	—	0.400	Max
Cu	≤0.25	—	0.250	Max
W	2-2.5	2.000	2.500	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: Ni, Mo.

Physical & mechanical properties

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.

Heat treatment

GB /T 1299-2000

Single operationTest specimen

Quenching860–900 °C
Cooling Oil

GB /T 1299-2025

Single operationTest specimen

Quenching860–900 °C
Cooling Oil

Supply condition

AnnealingSupply condition

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

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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