GNEE Steel is one of the leading manufacturer, exporter, and supplier of Super Duplex Steel UNS S32750 Welded Pipe. We supply and manufacture our product according to our customer's requirements. We follow different specifications and standards to manufacture the product. The alloy super duplex steel uns s32750 is a mixture of high chromium, nickel, and molybdenum with low copper, silicon, carbon, iron element. Because of the high chromium and nickel alloy, the welded pipes offer high corrosion resistance property. The alloy super duplex steel welded pipe has excellent corrosion resistance, pitting and crevice corrosion in seawater and chloride containing atmosphere. The welded pipes have high mechanical strength, tensile, good ductility.


The Super Duplex Steel 1.4410 Welded Pipes is used in the number of industries like water desalinization, oil and gas, paper and pulp, heat exchanger, condenser, petrochemical, and many other companies as well. It has good workability and weldability. However, the pipe has many applications because of good ductility, resistance to chloride stress and cracking stress. The pipe is rust free and it is easily worked in an acid environment. Before delivery our product we conduct various types of tests like micro and macro test, intergranular test, destructive test, mechanical and chemical tests, and many other tests.
S32750 Super Duplex Steel Stainless Welded Pipes Specification :
| Specifications | : | ASTM A790 / SA790 |
| Size | : | 1/8"NB TO 30"NB IN |
| Thickness | : | 0.5-45mm |
| Form | : | Round, Square, Rectangular, Hydraulic Etc. |
| Length | : | Single Random, Double Random & Cut Length |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
ASTM A276 Super Duplex Steel S32750 Welded SS Pipes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex 2507 | 1.4410 | S32750 |
Super Duplex S32750 Stainless Pipe Welding Chemical Composition
| C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
Super Duplex WERKSTOFF NR. 1.4410 SS Welded Pipes Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |





