22Mo4
22Mo4 is a material in the category Heat-resistant structural steels, held under material number 1.5429. Its recorded composition includes C 0.18–0.25%, Si 0.2–0.4%, Cr ≤ 0.3%, Mn 0.4–0.7% and Mo 0.3–0.4%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³.
About Heat-resistant structural steels
Heat-resistant structural steels are structural steels designed to retain useful strength and dimensional stability at elevated temperatures. They are used for load-bearing components in hot-service equipment where mechanical performance must be maintained during heating.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Chemical composition
7 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 |
|---|---|
0.18–0.25 | |
0.2–0.4 | |
0.4–0.7 | |
0.03 | |
0.03 | |
≤ 0.3 | |
0.3–0.4 |
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 | 0,18-0,25 | 0.180 | 0.250 | Range |
| Si | 0,20-0,40 | 0.200 | 0.400 | Range |
| P | 0,03 | 0.030 | 0.030 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| Cr | (≤0,30) | — | 0.300 | Max |
| Mn | 0,40-0,70 | 0.400 | 0.700 | Range |
| Mo | 0,30-0,40 | 0.300 | 0.400 | 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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.5, a shared category, and a published range for Mn / Mo that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.
Mn 0,40-0,90 · Mo 0,25-0,35
- ΔMn 0.10
- ΔMo 0.05
- 38 designations
Mn 0,60-0,80 · Mo 0,40-0,50
- ΔMn 0.15
- ΔMo 0.10
- 1 designations
Mn 0,60-0,90 · Mo 0,20-0,30
- ΔMn 0.20
- ΔMo 0.10
- 1 designations
Mn 0,50-1,00 · Mo 0,40-0,60
- ΔMn 0.20
- ΔMo 0.15
- 6 designations
Mn 0,60-1,00 · Mo 0,20-0,30
- ΔMn 0.25
- ΔMo 0.10
- 1 designations
Mn 0,70-1,00 · Mo 0,40-0,60
- ΔMn 0.30
- ΔMo 0.15
- 3 designations
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.