G-NiMo 30
G-NiMo 30 is a material in the category Nickel and cobalt alloys, held under material number 2.4882. Its recorded composition includes C ≤ 0.12%, Si ≤ 1%, Fe 4–6%, Co ≤ 2.5% and Mo 26–30%. We list 3 designations recorded for this grade, in the standards UNS. Its recorded density is 7.85 g/cm³.
If you came for one of these
The most-used names for this grade.About Nickel and cobalt alloys
Nickel and cobalt alloys are metallic materials whose properties are developed through nickel-, cobalt-, or combined alloying systems. They are characterised by strong resistance to corrosion, oxidation, wear, and loss of strength at elevated temperatures, making them suitable for turbine components, chemical-processing equipment, and other demanding high-temperature applications.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
4 designations · 2 standards · nothing hidden- G-NiMo 30This 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
11 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 |
|---|---|
≤ 0.12 | |
≤ 1 | |
≤ 1 | |
0.04 | |
0.033 — | |
≤ 1 | |
26–30 | |
Balance | |
0.2–0.6 | |
≤ 2.5 | |
4–6 |
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 | ≤0,12 | — | 0.120 | Max |
| Si | ≤1,00 | — | 1.000 | Max |
| P | 0,04 | 0.040 | 0.040 | Exact |
| S | 0,033 | 0.033 | 0.033 | Exact |
| V | 0,20-0,60 | 0.200 | 0.600 | Range |
| Cr | ≤1,00 | — | 1.000 | Max |
| Mn | ≤1,00 | — | 1.000 | Max |
| Fe | 4,00-6,00 | 4.000 | 6.000 | Range |
| Co | ≤2,50 | — | 2.500 | Max |
| Ni | Rest/Bal. | 57.707 | 69.727 | Balance |
| Mo | 26,0-30,0 | 26.000 | 30.000 | 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
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 2.4, a shared category, and a published range for Ni / 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.
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.






