GX5CrNiNb18-10
GX5CrNiNb18-10 is a material in the category Cast stainless steels, held under material number 1.6905. Its recorded composition includes C ≤ 0.06%, Si ≤ 1.5%, Cr 17.5–20%, Mn ≤ 1.5% and Ni 9–11%. We list one designation recorded for this grade, in the standard UNS. Its recorded density is 7.85 g/cm³.
If you came for one of these
The most-used names for this grade.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.
Also known as
2 designations · 2 standards · nothing hidden- GX5CrNiNb18-10This grade’s own nameWithdrawn
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
8 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 |
|---|---|
≤ 0.06 | |
≤ 1.5 | |
≤ 1.5 | |
0.045 | |
0.03 | |
17.5–20 | |
≤ 0.5 | |
9–11 |
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 | ≤0,06 | — | 0.060 | Max |
| Si | ≤1,50 | — | 1.500 | Max |
| P | 0,045 | 0.045 | 0.045 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| Cr | 17,5-20,0 | 17.500 | 20.000 | Range |
| Mn | ≤1,50 | — | 1.500 | Max |
| Ni | 9,00-11,0 | 9.000 | 11.000 | Range |
| Mo | ≤0,50 | — | 0.500 | Max |
- ≥(8xC)≤1,00
- ≥(8xC)≤1,00
- ≥(8xC)≤1,00
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 1.6, a shared category, and a published range for Cr / Ni 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.