GB · China · 1 designation

3Cr3Mo3VCo3

3Cr3Mo3VCo3 is a grade designated under GB. Its recorded composition includes C 0.28–0.35%, V 0.4–0.7%, Cr 2.7–3.2%, Co 2.5–3% and Mo 2.6–3%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 229.

Designations 1

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

Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 89.8 %Cr — 3 %Mo — 2.8 %Co — 2.8 %Traces & impurities · 1.7 %

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

Element	% by weight
	0.28–0.35
	0.1–0.4
	0.15–0.45
	≤ 0.03
	≤ 0.02
	2.7–3.2
	2.6–3
	0.4–0.7
	2.5–3
	≤ 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	0.28-0.35	0.280	0.350	Range
Si	0.1-0.4	0.100	0.400	Range
P	≤0.03	—	0.030	Max
S	≤0.02	—	0.020	Max
V	0.4-0.7	0.400	0.700	Range
Cr	2.7-3.2	2.700	3.200	Range
Mn	0.15-0.45	0.150	0.450	Range
Co	2.5-3	2.500	3.000	Range
Cu	≤0.25	—	0.250	Max
Mo	2.6-3	2.600	3.000	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.

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.

Properties by condition

0 conditions · 0 values

1 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition.

Heat treatment

GB /T 1299-2025

Single operationTest specimen

Quenching1000–1050 °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.

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