5537
5537 is a designation in SAE AMS for the material held under material number 2.4964, also listed as CoCr20W15Ni. It is a material in the category High-temperature steels / aviation variant. We list 8 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM and SAE AMS.
If you came for one of these
The most-used names for this grade.About High-temperature steels / aviation variant
High-temperature aviation steels are heat-resistant materials designed to retain strength and structural stability during prolonged exposure to elevated temperatures. Their alloying provides resistance to creep, oxidation, and thermal degradation, making them suitable for aircraft engine and other hot-section components.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
8 designations · 5 standards · nothing hidden- 5537Indicativeplatesheetstrip
- 5759Indicativebarforging
- 5796Indicativewire
- 5797Indicativerod
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
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 |
|---|---|
0.05–0.15 | |
≤ 0.4 | |
≤ 2 | |
0.02 | |
0.015 | |
19–21 | |
9–11 | |
14–16 — | |
Balance | |
≤ 3 |
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 | 0,05-0,15 | 0.050 | 0.150 | Range |
| Si | ≤0,40 | — | 0.400 | Max |
| P | 0,02 | 0.020 | 0.020 | Exact |
| S | 0,015 | 0.015 | 0.015 | Exact |
| Cr | 19,0-21,0 | 19.000 | 21.000 | Range |
| Mn | ≤2,00 | — | 2.000 | Max |
| Fe | ≤3,00 | — | 3.000 | Max |
| Co | Rest/Bal. | 46.415 | 57.915 | Balance |
| Ni | 9,00-11,0 | 9.000 | 11.000 | Range |
| W | 14,0-16,0 | 14.000 | 16.000 | 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: 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.
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.