GB · China · 1 designation

W6Mo5Cr4V2Co2

W6Mo5Cr4V2Co2 is a grade designated under GB. Its recorded composition includes C 0.88–0.96%, V 1.75–2.1%, Cr 3.8–4.5%, Mo 4.7–5.5% and W 5.9–6.7%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 255.

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 — 79.2 %W — 6.3 %Mo — 5.1 %Cr — 4.2 %Traces & impurities · 5.2 %

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

Element	% by weight
	0.88–0.96
	0.2–0.45
	0.15–0.4
	≤ 0.03
	≤ 0.02
	3.8–4.5
	4.7–5.5
	1.75–2.1
	5.9–6.7
	1.5–2

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	0.88-0.96	0.880	0.960	Range
Si	0.2-0.45	0.200	0.450	Range
P	≤0.03	—	0.030	Max
S	≤0.02	—	0.020	Max
V	1.75-2.1	1.750	2.100	Range
Cr	3.8-4.5	3.800	4.500	Range
Mn	0.15-0.4	0.150	0.400	Range
Co	1.5-2	1.500	2.000	Range
Mo	4.7-5.5	4.700	5.500	Range
W	5.9-6.7	5.900	6.700	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
Quenching1190–1210 °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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