Alloy C-276
(UNS N10276) W. Nr. 2.4819
| Chemical composition | Ni | Mo | Cr | Fe | Tu | Co | Mn | C | V | P | S | Si |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % Present (Max) | Bal | 15 – 17 | 14.5 – 16.5 | 4 – 7 | 3.0 – 4.5 | 2.5 | 1 | 0.01 | 0.35 | 0.04 | 0.03 | 0.08 |
Alloy C-276 is an austenitic nickel-molybdenum chromium alloy with a small addition of tungsten. It is one of the premier corrosion resistant materials available for process industries. Alloy C-276 has excellent corrosion resistance in both oxidizing and reducing environments.
The combination of the high molybdenum and chromium content, along with the addition of tungsten, make Alloy C-276 highly resistant to chloride stress corrosion cracking, pitting, crevice corrosion and general corrosion. Alloy C-276 can operate in oxidizing atmospheres up to 1900°F (1038°C), however, the alloy lacks sufficient chromium content to operate successfully in the most strongly oxidizing environments like hot, concentrated nitric acid.
The low carbon content of Alloy C-276 enables the alloy to be utilized in the as-welded condition. It cannot be hardened by heat treatment, but can be hardened by cold working. The alloy has a higher work-hardening rate than the austenitic stainless steels which should be taken into consideration. Alloy C 276 can be easily welded and processed utilizing standard shop fabrication practices for austenitic stainless steels and nickel based alloys.
Note: Values are in accordance with EN 10088 specifications. Actual mill certs available upon request.