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Prime Quality UNS S31254 Cold Rolled Seamless Stainless Steel Pipe with Bright Surface (254 SMO, 1.4547)
Product Details
| Model Number | 254 SMO, 1.4547, 254SMO | Shape | Round |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Outer Diameter | 6-630mm | Production Capacity | 50000kgs |
| Iron Content | 55.69% | Chromium Content | 20% |
| Nickel Content | 18% | Molybdenum Content | 6.1% |
| Nitrogen Content | 0.20% | Carbon Content | 0.010% |
| Tensile Strength | 680 MPa | Yield Strength | 300 MPa |
| Elongation At Break | 50% | ||
| Highlight | UNS S31254 Stainless Steel Pipe,Cold Rolled Seamless Stainless Steel Pipe,Bright Surface 254 SMO Pipe |
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Product Description
Prime Quality UNS S31254 Seamless Stainless Steel Pipes
Also known as 254 SMO, 1.4547, and 254SMO, this austenitic stainless steel is specifically developed for use in halide-containing environments such as seawater. The superiority of this steel manifests itself particularly in halide-containing acids, while also featuring excellent resistance to uniform corrosion.
Material Characteristics
254SMo is classified as a super austenitic stainless steel with carbon content below 0.02%. This high-alloy stainless steel contains elevated levels of nickel, chromium, and molybdenum (6% Mo), providing exceptional performance in demanding applications.
Key Features
- Excellent local corrosion resistance due to high molybdenum content
- Superior pitting corrosion resistance (PI ≥ 40) in harsh conditions
- Outstanding resistance to stress corrosion cracking
- Enhanced mechanical strength from high nitrogen content
- High ductility, impact strength, and good weldability
- Cost-effective alternative to nickel-based alloys and titanium
Technical Specifications
Material Standards
| Standard | UNS | Werkstoff Nr. | EN | SS | AFNOR |
|---|---|---|---|---|---|
| 254 SMO | S31254 | 1.4529 | X1CrNiMoCuN20-18-7 | 2378* | Z1 CNDU 20.18.06AZ* |
Chemical Composition
| Element | Content (%) |
|---|---|
| Iron, Fe | 55.69 |
| Chromium, Cr | 20 |
| Nickel, Ni | 18 |
| Molybdenum, Mo | 6.1 |
| Nitrogen, N | 0.20 |
| Carbon, C | 0.010 |
Mechanical Properties
| 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 |
Applications
- Ocean: Marine structures, seawater desalination, aquaculture, seawater heat exchange
- Environmental Protection: Flue gas desulfurization, wastewater treatment
- Energy: Nuclear power generation, coal utilization, wave power generation
- Petrochemical Industry: Refining and chemical processing equipment
- Food Industry: Salt production, soy sauce brewing
- High Chloride Environments: Paper industry, bleaching equipment
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