GOST · Russia / CIS · 2 designations

3Ch2V8F

19721 is a grade designated under ČSN. Its recorded composition includes C 0.3–0.4%, V 0.2–0.5%, Cr 2.2–2.7%, Mn 0.15–0.4% and W 7.5–8.5%. We list one designation recorded for this grade, in the standard GOST.

Designations 2

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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

GOSTRussia / CIS · 1

3Ch2V8FThis grade’s own name

ČSNCzechia · 1

19721Indicative

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

Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 87.6 %W — 8 %Cr — 2.5 %C — 0.4 %Traces & impurities · 1.6 %

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

Element	% by weight
	0.3–0.4
	0.15–0.4
	0.15–0.4
	≤ 0.03
	≤ 0.03
	2.2–2.7
	≤ 0.35
	0.2–0.5
	7.5–8.5
	≤ 0.3

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 - 0.40	0.300	0.400	Range
Si	0.15 - 0.40	0.150	0.400	Range
P	<0.03	—	0.030	Max
S	<0.03	—	0.030	Max
V	0.20 - 0.50	0.200	0.500	Range
Cr	2.20 -2.70	2.200	2.700	Range
Mn	0.15 - 0.40	0.150	0.400	Range
Ni	<0.35	—	0.350	Max
Cu	<0.3	—	0.300	Max
W	7.50 - 8.50	7.500	8.500	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

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.

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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