GX1NiCrMoCuN25-20-5
GX1NiCrMoCuN25-20-5 is a material in the category Cast stainless steels, held under material number 1.4538. Its recorded composition includes C ≤ 0.02%, Cr 19–21%, Ni 24–26%, Cu 1–2% and Mo 4–5%. No cross-standard equivalents are recorded for this grade yet. Its recorded density is 7.85 g/cm³.
About Cast stainless steels
Cast stainless steels are stainless-steel materials produced by casting, combining corrosion resistance with the ability to form complex component shapes. Their composition and mechanical behaviour vary by grade, and they are used for corrosion-resistant cast components such as pumps, valves and process equipment.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
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 |
|---|---|
≤ 0.02 | |
≤ 1 | |
≤ 1 | |
0.035 | |
0.01 | |
19–21 | |
4–5 | |
24–26 — | |
1–2 | |
0.04–0.15 |
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 | ≤0,020 | — | 0.020 | Max |
| N | 0,040-0,150 | 0.040 | 0.150 | Range |
| Si | ≤1,00 | — | 1.000 | Max |
| P | 0,035 | 0.035 | 0.035 | Exact |
| S | 0,01 | 0.010 | 0.010 | Exact |
| Cr | 19,0-21,0 | 19.000 | 21.000 | Range |
| Mn | ≤1,00 | — | 1.000 | Max |
| Ni | 24,0-26,0 | 24.000 | 26.000 | Range |
| Cu | 1,00-2,00 | 1.000 | 2.000 | Range |
| Mo | 4,00-5,00 | 4.000 | 5.000 | 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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Ni / Cr 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.
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.