254SMO is an austenitic steel designed for maximum resistance to pitting and crevice corrosion. With high levels of chromium, molybdenum and nitrogen, 254SMO is especially suited for high chloride environments such as brackish water, seawater, pulp mill bleach plants and other high-chloride process streams. In new construction, 254SMO has been found in many cases to be technically adequate and much less costly substitute for nickel-based alloys and titanium. 254SMO is readily fabricated and welded.
Availability – Stainless Steel 254SMO
Seamless Pipe 1/2” – 8”
Weld Pipe 1/2” – 12”
Butt-Weld Fittings 3/4” – 12”
Flanges 3/4” – 12”
Bar: 1” – 8”
Specifications – Stainless Steel 254SMO
| ASTM | A312, A403, A182 |
| ASME | SA312, SA403, SA182 |
Chemical Composition – Stainless Steel 254SMO
| C | CR | CU | MN | MO | N | NI | P | S | SI |
|---|---|---|---|---|---|---|---|---|---|
| Max | Max | Max | Max | Max | |||||
| 0.02% | 19.5% – 20.5% | 0.5% – 1.0% | 1.0% | 6.0% – 6.5% | 0.18% – 0.22% | 17.5% – 18.5% | 0.03% | 0.010% | 0.80% |
Typical Applications – Stainless Steel 254SMO
- Seawater handling equipment
- Pulp mill bleach systems
- Tall oil distillation columns and equipment
- Chemical processing equipment
- Food processing equipment
- Desalination equipment
- Flue gas desulfurization scrubbers
Tensile Requirements – Stainless Steel 254SMO
Tensile Strength (KSI): 94
Yield Strength (KSI): 44
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.