GB · China · 1 designation

W10Mo2Cr4V5Co8

W10Mo2Cr4V5Co8 is a grade designated under GB. Its recorded composition includes C 1.55–1.67%, V 4.6–5.25%, Cr 4.5–5%, Co 7.6–8.35% and W 9.5–10.5%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 300.

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 — 67.6 %W — 10 %Co — 8 %V — 4.9 %Traces & impurities · 9.5 %

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

Element	% by weight
	1.55–1.67 —
	≤ 0.7
	0.2–0.4
	≤ 0.03
	≤ 0.02
	4.5–5
	1.8–2.4
	4.6–5.25 —
	9.5–10.5
	7.6–8.35

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	1.55-1.67	1.550	1.670	Range
Si	≤0.7	—	0.700	Max
P	≤0.03	—	0.030	Max
S	≤0.02	—	0.020	Max
V	4.6-5.25	4.600	5.250	Range
Cr	4.5-5	4.500	5.000	Range
Mn	0.2-0.4	0.200	0.400	Range
Co	7.6-8.35	7.600	8.350	Range
Mo	1.8-2.4	1.800	2.400	Range
W	9.5-10.5	9.500	10.500	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.

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
Quenching1210–1230 °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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