We are Manufacture, Suplier & Export of Duplex Steel S31803 Forged Threaded Fittings, which is the most widely used duplex (Ferritic / Austenitic) stainless steel grade. We recognize the importance of the ability to supply raw and pre-machined Duplex UNS S31803 Forged Threaded Fittings that can be relied on in terms of QUALITY, TRACEABILITY TO MILL SOURCE, SUPPLY ACCURACY, and RAPID DELIVERY. Duplex UNS S31803 Forged Threaded Elbow are extremely corrosion resistant and work hardenable alloys. Often referred to as the work horse grade, Duplex Steel S31803 Forged Threaded Fittings is the most widely used grade in the duplex family of stainless steels.
In fact Duplex S31803 Forged Threaded Fittings can be used successfully as an alternative to 300 series austenitic stainless steels in almost all applications where higher mechanical strength / lower weight is required. We offer wide range of Duplex Steel ASTM A182 Forged Threaded Fittings such as Duplex Steel 2205 Forged Threaded Elbow, Duplex S31803 Threaded Equal Tee, Duplex Steel S31803 Threaded Coupling, 2205 Duplex Steel Threaded Pipe Cap, Duplex Steel S31803 Threaded Union etc.
Specifications | ASTM A182 / ASME SA182 |
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Size | 1/8″ NB to 4″ NB Screwed-Threaded |
Dimensions | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
Class | 2000lb/ 3000lb/ 6000lbs |
From | 90º Elbows, 45º Elbows, Tees, Cross, Couplings, Reducers, Inserts, Caps, Nipples, Unions, Equal Tees & Reducing Tees, Plugs. |
STANDARD | WERKSTOFF NR. | UNS |
Duplex S31803 | 1.4462 | S31803 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |