Corrosion Resistant High Molybdenum Content Super Austenitic 254 SMO Stainless Steel Plate UNS S31254
Price:
3.25
MOQ:
50
Delivery Time:
Negotiable
Product Description
ASTM A240 UNS S31254 / 1.4547 / 254SMO Duplex Stainless Steel Plates & Sheets
Alloy 254 UNS S31254 Plate, 254 SMO Plate, SA 240 UNS S31254 Plate, SS 254 SMO F44 Plates
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 | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
Chemical Composition
| Element | Composition (%) |
|---|---|
| Ni | 17.5 – 18.5 |
| Cr | 19.5 – 20.5 |
| Mo | 6 – 6.5 |
| Cu | 0.5 – 1.0 |
| N | 0.18 – 0.22 |
| C | 0.02 |
| Mn | 1.0 |
| Si | 0.08 |
| P | 0.03 |
| S | 0.01 |
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 |
Applications
- Elevated oil distillation columns
- Exhaust gas desulfurization scrubbers
- Pumps, chokes, and valves
- Industrial components for oil and gas
- Food processing equipment
- Pipework and manifolds
- Saltwater handling systems
- Chemical industry components
- Bleaching equipment in pulp & paper industry
- Desalination equipment
- Heat exchangers
- Petroleum production equipment
- Flue gas desulphurization scrubbers
- Tall oil distillation columns
- Offshore oil & gas production equipment
Product Overview
Alloy 254 SMO is a premium molybdenum and nitrogen alloyed super austenitic stainless steel with low carbon content. It demonstrates outstanding resistance to pitting, crevice corrosion, stress cracking, and corrosion fatigue. Alloy 254 SMO is substantially stronger than common austenitic grades, with strength nearly twice that of 300 series stainless steel, while maintaining high ductility and impact strength.
With high levels of chromium, molybdenum, and nitrogen, Alloy 254 SMO is frequently used in high chloride environments such as brackish water, seawater, pulp mill bleach plants, and other chloride process streams. In many applications, it serves as a cost-effective substitute for high nickel and titanium alloys.
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 water, suitable for prolonged seawater exposure without crevice corrosion
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Company
TSING SHAN STEEL INDUSTRIAL LIMITED
Location
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
Contact Person
Gao Ben