When a top chemical processing facility struggled with severe corrosion failures, switching to SMO 254 Sheets elevated their equipment reliability, dramatically cutting unplanned downtime and repair costs. This duplex stainless steel sheet is now a core solution for engineers and procurement leaders in chemical, oil & gas, marine, pharmaceutical, and power sectors demanding superior protection against aggressive chloride environments. Aurico Alloys LLP proudly offers certified SMO 254 Sheets as a go-to choice for critical plant components and custom fabrications.
Table of Contents:
SMO 254 (UNS S31254, ASTM A240) combines high molybdenum, nitrogen, and chromium with a duplex microstructure that delivers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking far beyond 316L or 904L stainless steels. Its alloy chemistry and balanced duplex phase yield provide both strength and corrosion resistance in harsh acids, seawater, and sour gas environments.
Aurico Alloys LLP supplies SMO 254 Sheets to stringent ASTM A240 and UNS S31254 standards, offering hot and cold-rolled sheets in diverse thickness and finish options. Every batch is supplied with full documentation, including mill test certificates, RoHS and REACH compliance, ensuring global project traceability and peace of mind.
Choosing Aurico's SMO 254 Sheets means securing materials that optimize operational uptime, enable complex fabrication, and reduce maintenance in the toughest industrial environments, outperforming traditional stainless steels every time.
High-quality SMO-254 Sheets ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | SMO 254 (UNS S31254) |
| Standards | ASTM A240, ASME SA240, EN 1.4547 |
| Thickness Range | 0.5 mm – 30 mm |
| Width | Up to 2000 mm |
| Length | Up to 6000 mm (custom cut available) |
| Finish | Hot rolled, cold rolled, annealed, pickled, polished available |
| Forms | Sheets, plates, strips, coils, blanks, rings |
| Delivery | With full MTC, test certificates, RoHS/REACH compliance |
| Price | INR 1,000 – 1,750 per kg. Indicative USD 12 – 21 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | S31254 |
| Werkstoff / EN number | 1.4547 |
| EN designation | X1CrNiMoCuN20-18-7 |
| Density | 8.00 g/cm3 |
| Modulus of elasticity | 195 GPa |
| Coefficient of expansion | 16.5 µm/m·°C |
| Thermal conductivity | 14 W/m·°C |
| Specific heat | 500 J/kg·°C |
| Electrical resistivity | 0.85 µΩ·m |
| Magnetic | no |
| Plate, sheet and strip specification | ASTM A240 |
Identifiers and physical constants for 254 SMO. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP stocks SMO 254 Sheets of all sizes and finishes to meet urgent project and regular OEM demands in chemical, oil & gas, marine, pharmaceutical, and power sectors worldwide. Custom cutting and fabrication services available.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.020 |
| Silicon (Si) | — | 0.80 |
| Manganese (Mn) | — | 1.00 |
| Phosphorus (P) | — | 0.030 |
| Sulfur (S) | — | 0.010 |
| Chromium (Cr) | 19.5 | 20.5 |
| Molybdenum (Mo) | 6.0 | 6.5 |
| Nickel (Ni) | 17.5 | 18.5 |
| Copper (Cu) | 0.50 | 1.00 |
| Nitrogen (N) | 0.18 | 0.25 |
| Iron (Fe) | — | Balance |
Composition limits for 254 SMO. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 620 – 800 |
| Yield Strength (0.2% MPa) | 310 – 450 |
| Elongation (%) | 25 – 40 |
| Hardness (HB) | Max 300 |
| Melting Point (°C) | 1370 – 1400 |
| Service Temperature (°C) | Up to 600 continuous use |
Applications & Benefits
- Chemical: highly corrosive acids, pulp/paper, fertilizers, reactors, evaporators
- Oil & Gas: sour gas handling, heat exchangers, piping, separators
- Marine: seawater resistance for scrubbers, condenser tubes, desalination
- Pharma: sterile vessels, storage tanks, tubing in corrosive environments
- Power: flue gas desulfurization, turbine parts, cooling systems
- OEMs & Fabricators: precisely formed sheets with excellent weldability and longevity
FAQ & Insights
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s SMO 254 Sheets provide unmatched corrosion resistance, mechanical strength, and full certification for critical chemical, oil & gas, marine, pharma, and power generation projects. Ready to ensure your critical assets are protected with high-performance Alloy SMO 254 Sheets from Aurico?