Alloys 254 / 254 SMO / 6 Mo is an austenitic stainless steel with a high molybdenum content. Coupled with Nickel and Copper this gives the alloy a good resistance to pitting and crevice corrosion, especially in environments containing halide ions, e.g. chloride, bromide and fluoride solutions.
254 SMO (UNS S31254) may offer a cost effective solution to Nickel and Titanium alloys in these environments.
| Alloy | Common Name | Related Specifications | Tensile Strength | Proof Stress | Elongation | ||
|---|---|---|---|---|---|---|---|
| British | European | United States | |||||
| Alloy 254 | 254SMO | 1.4547 | ASTM A479/A473, /A240 S31254 F44 |
655 [95] |
305 [44.2] |
35 | |
Alloy 254 Technical Information
| Alloy 254 Bar stock sizes available | ||
|---|---|---|
| Diameter (in) |
Diameter (mm) |
kg per m |
| 3/8 | 9.53 | 0.57 |
| 1/2 | 12.70 | 1.01 |
| 5/8 | 15.88 | 1.58 |
| 3/4 | 19.05 | 2.28 |
| 7/8 | 22.23 | 3.10 |
| 1 | 25.40 | 4.05 |
| 1 1/4 | 31.75 | 6.33 |
| 1 3/8 | 31.75 | 6.33 |
| 1 1/2 | 34.93 | 7.66 |
| 1 3/4 | 44.45 | 12.41 |
| 2 | 50.80 | 16.21 |
| 2.36 | 60 | 22.62 |
| 2.56 | 65 | 26.55 |
| 2.76 | 70 | 30.79 |
| 2.95 | 75 | 35.34 |
| 3.15 | 85 | 40.21 |
| 3.54 | 90 | 50.89 |
| 3.94 | 100 | 62.83 |
| 4.33 | 110 | 76.03 |
| 4.72 | 120 | 90.48 |
| 5.12 | 130 | 106.19 |
| 6.10 | 155 | 150.95 |
Specifications of Alloy 254
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