Duplex Steel Forged Fittings Specification :
ASTM A182 / ASME SA182
Duplex Steel Forged Fittings Specification :
ASTM A182 / ASME SA182
Dimension Standard :
ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size :
1/8" NB to 4" NB
Type :
Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type)
In today’s demanding industrial landscape, Duplex Steel S31803 Forged Fittings have established themselves as the gold standard for strength, reliability, and long-term performance. Engineered from a unique metallurgical composition that combines the advantages of both ferritic and austenitic stainless steels, S31803 offers superior tensile strength, excellent toughness, and remarkable resistance to stress corrosion cracking and pitting. Forged under extreme temperature and pressure conditions, these fittings gain a refined grain structure that eliminates casting defects and enhances mechanical integrity. The result is a component that performs flawlessly under high-pressure and high-temperature environments where ordinary materials fail. Industries such as oil and gas, petrochemical, power generation, marine, offshore drilling, and chemical processing consistently prefer Duplex Steel S31803 Forged Fittings because they deliver exceptional durability, leak-proof efficiency, and extended service life. For engineers, they represent not just a fitting but a strategic choice—balancing robust performance with long-term cost savings by minimizing downtime, reducing the need for frequent replacements, and ensuring smooth operations even in aggressive, chloride-rich environments.
The historical presence of Duplex Steel S31803 Forged Fittings in India is deeply tied to the nation’s legacy of steel manufacturing excellence and its expanding industrial infrastructure. From early refinery projects and thermal power plants to modern offshore explorations and advanced chemical facilities, Indian industries have long relied on duplex steel to deliver sustainable and future-ready solutions. Indian manufacturers, adhering to stringent international standards such as ASTM, ASME, ANSI, and DIN, ensure each forged fitting undergoes rigorous testing for strength, corrosion resistance, and dimensional precision—instilling confidence in engineers and global buyers alike. This commitment to quality has not only strengthened India’s position as a trusted supplier of duplex steel forged fittings but also reinforced its industrial growth narrative. Engineers prefer Duplex S31803 because it bridges the gap between standard stainless steel and high-performance alloys, offering durability and long-lasting reliability at a competitive cost. By blending historical expertise with cutting-edge forging technology, India has cemented Duplex Steel S31803 Forged Fittings as symbols of strength, trust, and endurance—solutions that power industries today and will continue to safeguard infrastructure tomorrow.
S31803/S32205 Duplex Steel Forged Fittings Equivalent Grades
| STANDARD | WNR. |
|---|---|
| Duplex S31803 / S32205 | 1.4462 |
Duplex S31803/S32205 Socket Weld Elbow
Duplex Steel S31803 Forged Elbow, UNS S31803 / S32205 Threaded Elbow, DIN 1.4462 Forged Elbow, ASME SA 182 Duplex SAF 2205 45 deg Threaded Elbow, Duplex Stainless Steel S31803 90 deg Forged Elbow
Duplex S31803 Forged Tee
ASME SA182 Duplex S32205 Socket Weld Tee, ASTM A182 Duplex Steel S31803 Forged Equal Tee, DIN 1.4462 Reducing Tee, UNS S32205 Unequal Tee, Duplex Stainless Steel S31803 Reducing Tee, Duplex S32205 Threaded Equal Tee
Duplex S31803/S32205 Forged Cross
Duplex A182 SAF 2205 Threaded Equal Cross, DIN 1.4462 Forged Cross, ASME SA182 Duplex S32205 Socketweld Equal Cross, Duplex S31803 Threaded Cross, Duplex S31803 Reducing Cross, Duplex S32205 Forged Unequal Cross Supplier
Duplex S31803 Full Coupling
DIN 1.4462 Threaded Full Coupling, UNS S31803 Forged Full Coupling, ASME SA 182 Duplex Steel S32205 Socketweld Full Coupling, ASTM A182 S31803 Duplex Full Coupling
Duplex S31803 Forged Half Coupling
ASTM A182 SAF 2205 Duplex Steel Socket Weld Half Coupling, Duplex UNS S31803/ S32205 Half Coupling, ANSI B16.11 Duplex S31803 Threaded Half Coupling
Duplex S31803/S32205 Forged Pipe Cap
UNS S31803 Forged Pipe End Cap, Duplex Steel S31803 Threaded Pipe Cap, ASTM A182 SAF 2205 Duplex Steel Socket weld Pipe Cap, ASME SA 182 Duplex S32205 Forged Pipe End Cap
Duplex S31803/S32205 Forged Union
UNS S31803 Socket weld Union, ANSI B16.5 Duplex Steel S31803 Union, ASTM A182 SAF 2205 Duplex Steel Threaded Union, ASME SA 182 Duplex S31803 / S32205 Forged Union
Duplex S31803/S32205 Forged Bushing
UNS S31803 Bushing, B16.36 Duplex Steel S31803 Hex Head Bushing, ASTM A182 SAF 2205 Duplex Steel Threaded Bushing, ASME SA 182 Duplex S31803 / S32205 Forged Threaded Bushing
Duplex S31803/S32205 Forged Nipple
UNS S31803 Threaded Nipple, B16.36 Duplex S31803 Socketweld Nipple ASTM A182 SAF 2205 Duplex Steel Swage Nipple, ASME SA 182 Duplex S31803 Hex Nipple, Duplex S32205 Screwed Pipe Nipple
Duplex Steel Forged Fittings Specification :
ASTM A182 / ASME SA182
Dimension Standard :
ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size :
1/8" NB to 4" NB
Type :
Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type)
Rating Pressure :
Threaded End - 2000 /3000/ 6000 LBS. Socket-weld End - 3000 / 6000/ 9000 LBS.
Chemical Composition of Duplex Steel S31803/S32205 Forged Fittings
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| 2205 | S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Mechanical Properties Of Duplex Steel S31803/S32205 Forged Fittings
| Tensile strength | 620MPa min | Density | 7,805kg/m3 |
|---|---|---|---|
| Yield strength | 450MPa mi | Elastic modulus | 200GPa |
Physical Properties of S31803/S32205 Duplex Steel Forged Fittings
| Elongation | 25% min | Mean coefficient of thermal expansion | |
|---|---|---|---|
| Brinell hardness | 293 HB max | 0-100oC | 13.7µm/m/oC |
| Rockwell hardness | 31 HR C max | 0-315oC | |
Our Duplex Steel S31803 Forged Fittings are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry