Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.
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We are premier exporters and suppliers of a comprehensive range of Duplex 2205 (UNS S31803 / S32205) and Super Duplex 2507 (UNS S32750) products, including high-performance pipes, tubes, fittings, rods, fasteners, plates, and flanges. Our inventory is strictly compliant with international standards, featuring ASTM A789 and ASTM A790 (ASME SA789/790) specifications to ensure maximum reliability in corrosive and high-pressure environments.
If you are seeking a reliable UNS S31803 supplier that combines technical excellence with fast turnaround times and competitive pricing, we provide industry-leading solutions. Beyond duplex grades, we stock an extensive range of high-nickel alloys including Inconel 600, 625, 718, and X750, as well as premium seamless stainless steel. Our materials are available in multiple forms—including Flat Bar, Forging Stock, Hexagon, Round Bar, Sheet, Strip, and Wire—engineered to withstand the extreme temperatures and corrosive atmospheres typical of the aerospace, subsea, and chemical processing industries.
ASTM A790 UNS S31803 Seamless Pipe
ASTM A790 UNS S31803 Welded / ERW Pipe
ASTM A790 UNS S31803 Cold Drawn Pipe
ASTM A790 UNS S31803 Seamless Pipe
ASTM A790 UNS S31803 Welded Pipe
ASTM A790 UNS S31803 ERW Pipe
ASTM A790 UNS S31803 Tubing
ASTM A790 UNS S31803 Polished Pipe
ASTM A790 UNS S31803 Round Pipe
| Cr | Ni | Mo | N | C | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 21.0 – 23.0 | 4.5 – 6.5 | 2.5 – 3.5 | 0.08 – 0.20 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | Balance |
| Tensile Strength min. ksi (MPa) |
Yield Strength (0.2% Offset) min. ksi (MPa) |
Elongation min. % in 2" |
Hardness max. (Brinell HBW) |
Hardness max. (Rockwell C) |
|---|---|---|---|---|
| 90 (620) | 65 (450) | 25 | 293 | 31 |
| Physical Property | Value (Metric Units) |
|---|---|
| Density | 7.8 g/cm³ (0.28 lb/in³) |
| Modulus of Elasticity | 200 GPa (29.0 x 10⁶ psi) |
| Coefficient of Thermal Expansion (20-100°C) | 13.0 µm/m·°C |
| Thermal Conductivity (20°C) | 19.0 W/m·K |
| Specific Heat (0-100°C) | 450 J/kg·K |
| Electrical Resistivity (20°C) | 0.85 µΩ·m |
| Industrial Locations & Keywords |
|---|
| Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair) |
| Jeddah Industrial Cities (1st, 2nd & 3rd) |
| Dammam Industrial Areas (1st, 2nd & 3rd) |
| Jubail Industrial City |
| Yanbu Industrial City |
| Rabigh Industrial City |
| Al Khobar Industrial Area |
| Al Ahsa Industrial City |
| Madinah Industrial City |
| Makkah Industrial City |
| Taif Industrial City |
| Tabuk Industrial City |
| Jazan Industrial City |
| Industrial supplier in Saudi Arabia |
| Pipe fittings supplier in Jubail / Dammam / Riyadh |
| Flange and valve supplier Saudi Arabia |
| Fast delivery industrial materials KSA |
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