Duplex S31803 Screws
A1082 S31803, BS2377, 1.4470, SUS 329J3L, S31803, X2CrNiMoN 22-5-3
Duplex S31803 Screws are dual phase austenitic-ferritic duplex fasteners manufactured from alloy containing chromium, nickel and molybdenum with restricted carbon content and minimum PREN 35. Alloy 31803 Fasteners have excellent corrosion resistance and high strength. TorqBolt is an eminent Duplex S31803 fastener supplier in India.
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Duplex 31803 Cap Screw Properties
Duplex S31803 Chemical Requirements
| Grades | UNS DesignationB | TypeB | C | Mn | P | S | Si | Cr | Ni | Mo | N | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | . . . | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | . . . |
Duplex S31803 Mechanical Requirements
| UNS Designation | Solution Temperature, °F [°C]B,C | Size Range | Mechanical Properties | ||||
|---|---|---|---|---|---|---|---|
| Tensile Strength,ksi [MPA] | Yield Strength,ksi [MPA] | Elongation in 2"[50 mm] or 4D % | HardnessD | ||||
| Rockwell, HRC maximum | Brinell, maximum | ||||||
| S31803 | 1900 [1040] | . . . | 90 [620] | 65 [450] | 25 | 30 | 290 |