Corrosion Resistant ASTM A240 Standard 254 SMO Stainless Steel Plate with High Molybdenum Content
Price:
US $3.25-10.85 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
ASTM A240 UNS S31254 / 1.4547 / 254 SMO Duplex Stainless Steel Plates & Sheets
Alloy 254 UNS S31254 Plate, also known as 254 SMO Plate, SA 240 UNS S31254 Plate, and SS 254 SMO F44 Plates, represents a premium super austenitic stainless steel solution for demanding industrial applications.
Product Specifications
| Specification | Details |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Thickness | 4mm - 100mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc. |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc. |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc. |
| Processing | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Available Forms | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange), etc. |
Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 17.5 - 18.5 |
| Chromium (Cr) | 19.5 - 20.5 |
| Molybdenum (Mo) | 6.0 - 6.5 |
| Copper (Cu) | 0.5 - 1.0 |
| Nitrogen (N) | 0.18 - 0.22 |
| Carbon (C) | 0.02 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.08 max |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.01 max |
Mechanical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1320-1390 °C |
| Yield Strength (0.2% Offset) | 300 MPa |
| Tensile Strength | 650 MPa |
| Elongation | 35% |
Equivalent Grades
| Standard | Designation |
|---|---|
| UNS | S31254 |
| Werkstoff Nr. | 1.4547 |
| AFNOR | Z1 CNDU 20.18.06Az |
| EN | X1CrNiMoCuN20-18-7 |
| SIS | 2378 |
Material Characteristics
Alloy 254 SMO is a premium super austenitic stainless steel with low carbon content, alloyed with molybdenum and nitrogen. This composition delivers exceptional resistance to pitting, crevice corrosion, stress corrosion cracking, and corrosion fatigue. The material offers substantially higher strength than common 300 series stainless steels—nearly double—while maintaining high ductility and impact strength.
Corrosion Resistance
- Excellent resistance to pitting and crevice corrosion due to high chromium, molybdenum, and nitrogen content
- Very low carbon content minimizes risk of carbide precipitation during heating
- Superior resistance in chloride-containing environments, suitable for prolonged seawater exposure without crevice corrosion
Industrial Applications
- Petroleum production equipment
- Saltwater handling systems
- Food and chemical processing equipment
- Pulp mill bleach systems
- Flue gas desulphurization scrubbers
- Tall oil distillation columns
- Offshore oil & gas production equipment
- Desalination equipment
- Elevated oil distillation columns
- Exhaust gas desulfurization scrubbers
- Pumps, chokes, valves, and pipework
- Flanges and manifolds
- Bleaching equipment in pulp & paper industry
- Heat exchangers
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben