30W4Cr2V
30W4Cr2V is a grade designated under GB. Its recorded composition includes C 0.26–0.34%, V 0.5–0.8%, Cr 2–2.5%, Mn ≤ 0.4% and W 4–4.5%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm ≥ 1470 N/mm², A ≥ 7% and HB ≤ 321.
- Designations 1
Chemical composition
10 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 |
|---|---|
0.26–0.34 | |
0.17–0.37 | |
≤ 0.4 | |
≤ 0.025 | |
≤ 0.02 | |
2–2.5 | |
≤ 0.35 | |
0.5–0.8 | |
4–4.5 | |
≤ 0.2 |
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 | 0.26-0.34 | 0.260 | 0.340 | Range |
| Si | 0.17-0.37 | 0.170 | 0.370 | Range |
| P | ≤0.025 | — | 0.025 | Max |
| S | ≤0.02 | — | 0.020 | Max |
| V | 0.5-0.8 | 0.500 | 0.800 | Range |
| Cr | 2-2.5 | 2.000 | 2.500 | Range |
| Mn | ≤0.4 | — | 0.400 | Max |
| Ni | ≤0.35 | — | 0.350 | Max |
| Cu | ≤0.2 | — | 0.200 | Max |
| W | 4-4.5 | 4.000 | 4.500 | 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: Mo.
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 values3 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
- Stress relieving
- Quenching and Tempering
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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