
S31803 Duplex Stainless Steel Sheet
1. Standard: ASTM A240 / ASME SA240
2. Thickness: 0.5mm-30mm
3. Width: 1000-2500mm
4. Length: 1000-6000mm
5. Equivalent:UNS S31803, WNR.1.4462
S31803 Duplex Stainless Steel Sheet composition includes 20% chromium, 3% molybdenum, 6% nickel, 0.2% nitrogen, etc. A two-phase microstructure consisting of ferrite and austenite phases. It has good resistance to sulfide stress corrosion and high resistance to chloride stress corrosion cracking, such as seawater, acidic and alkaline media, etc. Due to the addition of nitrogen to the alloy, the yield strength value of duplex 1.4462 exceeds 450MPa, which is twice the yield strength of austenitic stainless steel 316L and 317L. Our company is a 2205 supplier with 15+ export experience, contact us for more information and quotes for free!
ASTM A240 S31803 duplex stainless steel plate standard:
- ASTM A240: Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
- Other Grade: 304, 304L, 316, 316L, 316Ti, 310S, 317, 317L, 321, 347, 904L, S31254, N08367, UNS S32205, UNS S31803, UNS S32750, Etc.

S31803 Duplex Stainless Steel Sheet Specifications
| Specifications | ASTM A240 / ASME SA240 |
| Thickness |
0.5mm-30mm |
| 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, hairline, 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 Sheets, Shim Sheets, Perforated sheets, Chequered Plates, strips, Flats, Blank (Circle), Rings (Flange), etc. |
Weight of ASME SA 240 UNS S31803 Sheet
| Thickness | Plate Weight per Unit Area | Density |
|---|---|---|
| 3/16 inches | 0.06000 lbs/in²42.184176 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/4 inches | 0.08 lbs/in²56.245568 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/8 inches | 0.121 lbs/in²85.0714216 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/2 inches | 0.161 lbs/in²113.1942056 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 5/8 inches | 0.196 lbs/in²137.8016416 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/4 inches | 0.235 lbs/in²165.221356 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 7/8 inches | 0.274 lbs/in²192.6410704 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 inches | 0.313 lbs/in²220.0607848 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/4 inches | 0.391 lbs/in²274.9002136 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/2 inches | 0.47 lbs/in²330.442712 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 3/4 inches | 0.549 lbs/in²385.9852104 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 inches | 0.627 lbs/in²440.8246392 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
UNS S31803 Mechanical Properties
- Yield strength: ≥450 MPa
- Tensile strength: ≥620 MPa
- Elongation: ≥25%
- Impact toughness: Meet the requirements
ASME SA240 UNS S31803 Steel Sheet Application
- Oil and natural gas industry
- Chemical industry
- Heat Exchangers
- Ocean engineering
- Food processing industry
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