Metallon Pipings FZ LLC offers a wide range of Duplex Steel S31803 / S32205 Forged Threaded Fittings, which are offered by us in variegated sizes and dimensions at industry leading rates. Duplex Steel S31803 Forged Threaded Elbow describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. Duplex Steel S32205 Forged Threaded Tee is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades.
Duplex Steel S31803 Forged Threaded Cross is often used in Marine Industry and Shipbuilding: such as in Propellers and Shafts, Rudders, Shaft Seals, Pumps, Bolts and Fasteners, Valves, Instrumentation, Oil and Chemical Tankers. Meanwhile, these Duplex Steel S32205 Forged Threaded Cap are also being offered in different sizes and shapes to our customers. Even when the equipment has sufficient power, allowance must be made for higher spring – back caused by the high strength of Duplex Steel S31803 Forged Threaded Fittings. In the solution annealed condition from about 1925 Degree F, Duplex Steel S32205 Forged Threaded Coupling has a microstructure with about 40 % – 50 % ferrite. Grain size of Duplex Steel S31803 Forged Threaded Union (expressed as a lamellar spacing) is fine, depending on product form. Duplex Steel S32205 Forged Threaded Bushing is difficult to form due to its high strength and work hardening rate.
Standard Specification For Super / Duplex S31803 / S32205 Forged Fittings
Specifications
ASTM A182 & ASME SA182
Dimension Standard
ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size
1/8” NB to 4” NB
Class
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Type
Socketweld Fittings, Screwed-Threaded Fittings
Super / Duplex S31803 / S32205 Forged Fittings for Chemical Composition
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
S32205
0.030 max
2.00 max
1.00 max
0.030 max
0.020 max
21.0 – 23.0
2.50 – 3.50
4.50 – 6.50
0.8 – 0.20
63.54 min
Super / Duplex S31803 / S32205 Forged Fittings For Mechanical Properties
Grades
Density (g/cm 3)
Density (lb/in 3)
Melting Point (°C)
Melting Point (°F)
S31803 / S32205
7.805
0.285
1420 – 1465
2588 – 2669
Super / Duplex S31803 / S32205 Forged Fittings For Equivalent Grades
Super / Duplex S31803 / S32205 Forged Fittings are widely used in various industries including petrochemical, oil and gas, power generation, bulk liquid transportation, chemicals, pharmaceuticals, pulp and paper manufacturing, textiles and others. All our Super / Duplex S31803 Forged Fittings are manufactured in accordance with international standards. Super / Duplex S31803 / S32205 Forged Fittings are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All Super / Duplex S31803 / S32205 Forged Fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on Super / Duplex S31803 / S32205 Forged Fittings.
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