W18Cr4V2Co 8
W18Cr4V2Co 8 is a grade designated under GB. Its recorded composition includes C 0.75–0.85%, V 1.8–2.4%, Cr 3.75–5%, Co 7–9.5% and W 17.5–19%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB 285–302; these figures vary with the delivery condition and dimension.
- Designations 1
Chemical composition
12 elements on file · weight %What this alloy is
Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.
| Element | % by weight |
|---|---|
0.75–0.85 | |
0.2–0.4 | |
0.2–0.4 | |
≤ 0.03 | |
≤ 0.03 | |
3.75–5 | |
0.5–1.25 | |
≤ 0.3 | |
1.8–2.4 — | |
17.5–19 — | |
7–9.5 | |
≤ 0.25 |
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 | 0.75-0.85 | 0.750 | 0.850 | Range |
| Si | 0.2-0.4 | 0.200 | 0.400 | Range |
| P | ≤0.03 | — | 0.030 | Max |
| S | ≤0.03 | — | 0.030 | Max |
| V | 1.8-2.4 | 1.800 | 2.400 | Range |
| Cr | 3.75-5 | 3.750 | 5.000 | Range |
| Mn | 0.2-0.4 | 0.200 | 0.400 | Range |
| Co | 7-9.5 | 7.000 | 9.500 | Range |
| Ni | ≤0.3 | — | 0.300 | Max |
| Cu | ≤0.25 | — | 0.250 | Max |
| Mo | 0.5-1.25 | 0.500 | 1.250 | Range |
| W | 17.5-19 | 17.500 | 19.000 | 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
This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.
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 values2 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
Supply condition
- AnnealingSupply condition
- Quenching and TemperingTest specimen
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.