254 SMO Pipes
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254 SMO Pipes are austenitic types of pipes which is twice as strong as regular stainless steel. Astm A312 Uns S31254 is considered to be a cost-effective substitute for high titanium and nickel alloy. It is resistant to pitting and crevice corrosion and also has a strong resistance to chloride stress corrosion cracking. 254 Smo Seamless Pipe is used in petroleum production, saltwater handling, and food processing industries. They are also used in the pulp and paper industry in bleaching equipment.
Chemical Composition of SMO 254 Stainless Steel Pipes and Tubes
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| ≤0.020 | ≤0.80 | ≤1.00 | ≤0.030 | ≤0.010 | 20 | 18 | 6.1 | 0.20 | 0.7 |
Mechanical Properties of UNS S31254 Stainless Steel Pipes
The following table shows Mechanical Properties of stainless steel grade 254 SMO™.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 680 MPa | 98600 psi |
| Yield strength | 300 MPa | 43500 psi |
| Modulus of elasticity | 195 GPa | 28300 ksi |
| Shear modulus | 75 GPa | 10900 ksi |
| Poisson's ratio | 0.30 | 0.30 |
| Elongation at break | 50 % | 50 % |
| Hardness, Brinell | 210 | 210 |
Alloy 254 Stainless Steel Pipes and Tubes Physical Properties
The physical properties of stainless steel grade 254 SMO™ are tabulated below.
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 14 | W.m -1.°K-1 |
| Thermal Expansion | 16.5 | mm/m/°C |
| Modulus Elasticity | 196 | GPa |
| Electrical Resistivity | 8.5 | μohm/cm |
| Density | 8.0 | g/cm3 |
Thermal Properties for SMO 254 Stainless Steel Pipes and Tubes
The thermal properties of stainless steel grade 254 SMO™ are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-100°C/68-212°F) | 16.5 µm/m°C | 9.17 µin/in°F |
| Thermal conductivity | 14 W/mK | 97.2 BTU in/hr.ft².°F |
SMO 254 SS Pipes and Tubes Applications
Stainless steel grade 254 SMO™ is used in the following areas:
Saltwater handling
Tall oil distillation columns
Flue gas desulfurization scrubbers
Components used in petroleum production
Food processing equipment
Process equipment in chemical industry
Bleaching equipment in the pulp and paper industry
Flue-gas cleaning
Desalination
Heat exchangers
Equipment for handling of seawater, such as, seawater cooling, cooling water Pipes, ballast water systems, firefighting systems etc.
Hydraulic and instrumention tubing
Equipment in pulp bleaching plants
Components in gas cleaning systems
Tanks and pipelines for chemicals with high halide contents
If your next project is SMO pipe and tube, GNEE Steel provides high-quality products, preferential prices, and considerate services, please contact us：ss@gneesteel.com
