59, C.P. Tank Road, Mumbai 400004
Rajendra Pipe Fittings is an esteemed manufacturer, supplier, and distributor of ASTM A790 UNS S31803 / S32205 Seamless Pipes. Duplex Steel UNS S31083 Pipes have high strength along with the superior abilities to resist crevice and pitting corrosion. Our ASTM A790 UNS S31803 / S32205 Pipes have a high degree of weld ability and are hardened through cold working, but they are slightly difficult to machine. We supply ASTM A790 UNS S31803 / S32205 Pipes to the food processing industry. We manufacture precision smooth bore duplex steel UNS S31803 Pipe/ tubing for marine environments, bleaching operations, closed loop water systems, brackish water, and some food processing applications. Our ASTM A790 2205 Seamless Pipes find their applications on various fields such as oil industry, gas industry, Oil Industry, Gas Industry, Refrigeration Industry, Filtration Industry, Petrochemical Industry, Offshore Industry and so on. These pipes yield great tensile strength and comprises of great toughness and durability.
Duplex UNS S31803 is a stainless steel austenitic-ferritic used for corrosive conditions and is capable of avoiding localised corrosion such as pitting, crevice corrosion and cracking of stress corrosion. The austenitic-ferritic chemical composition results in mechanical properties which are capable of dealing with conditions of high stress where mechanical failure will result from the use of ordinary austenitic stainless steel. We perform various tests on our products for an error free manufacturing as well as to ensure high quality of our products. The tests performed are prompt test, hydrostatic analysis, eddy current tests, and firmness test. These duplex steel pipes are also used in various industries, such as, paper & pulp companies, oil and gas industry, high pressure applications, pipeline, chemical refinery, water pipe line, high temperature applications, nuclear power plants, food processing and dairy industries, boiler & heat exchangers. They have many other features such as, rugged construction, high tensile strength, durability, long-lasting, flexibility, and withstanding heavy loads. Our team strives hard to manufacture and maintain the high quality standards of our products to meet both national and international standards.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 |
| Duplex S32205 | 1.4462 | S32205 |
Specifications : ASTM A790 / ASME SA790
Dimension Standard : ANSI B36.19M, ANSI B36.10
Seamless Pipe Size : 1/2″ NB – 16″NB
Outside Diameter (OD) : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size pipes available Ex-stock
Thickness Range : 0.3mm – 50 mm
Type : Seamless Pipes
Form : Round Pipes, Square Pipes, Rectangular Pipe
Length : Single Random, Double Random & Cut Length
End Protection : Plastic Caps
Outside Finish : 2B, No.1, No.4, No.8 Mirror Finish
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH120, SCH140, SCH160, XXS
End : Plain End, Beveled End, Treaded
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| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22 – 23 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Duplex S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21 – 23 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
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Rajendra Piping & Fittings
59, C.P. Tank Road, Mumbai 400004
