GB · China · 1 designation

W7Mo7Cr4V7Co11

W7Mo7Cr4V7Co11 is a grade designated under GB. Its recorded composition includes C 2.2–2.4%, V 6.2–6.8%, Co 10–11%, Mo 6.6–7.3% and W 6.1–6.9%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 340.

Designations 1

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Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 62.1 %Co — 10.5 %Mo — 6.9 %V — 6.5 %Traces & impurities · 14 %

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

Element	% by weight
	2.2–2.4 —
	≤ 0.7
	0.2–0.4
	≤ 0.03
	≤ 0.02
	3.75–4.5
	6.6–7.3
	6.2–6.8 —
	6.1–6.9
	10–11

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	2.2-2.4	2.200	2.400	Range
Si	≤0.7	—	0.700	Max
P	≤0.03	—	0.030	Max
S	≤0.02	—	0.020	Max
V	6.2-6.8	6.200	6.800	Range
Cr	3.75-4.5	3.750	4.500	Range
Mn	0.2-0.4	0.200	0.400	Range
Co	10-11	10.000	11.000	Range
Mo	6.6-7.3	6.600	7.300	Range
W	6.1-6.9	6.100	6.900	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.

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 9943-2025

In this orderTest specimen

Preheating800–900 °C
Quenching1160–1180 °C
Quenchant Oil, Salt bath or Nitrogen
Tempering550 °C

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

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