Duplex 2205 & Super Duplex 2507 Seamless Pipe
ASTM A790 duplex 2205 and super duplex 2507 seamless pipes for offshore, desalination, and sour service. Twice the strength of 316L, PREN 34-43.
Material
Duplex 2205 (S31803/S32205) / Super Duplex 2507 (S32750)
OD Range
6 – 406mm (2205) / 6 – 323mm (2507)
WT Range
1.0 – 50mm
Standard
ASTM A790 / ASME SA-790
Overview
Duplex and super duplex stainless steel seamless pipes combine high strength with exceptional chloride corrosion resistance. At TOKO TECH, we produce 2205 (S31803/S32205) and 2507 (S32750) seamless pipes to ASTM A790. These grades are NACE MR0175 compliant for sour service and offer double the yield strength of standard 316L, enabling wall thickness reduction and weight savings in critical applications.
Specifications
| Specification | Value |
|---|---|
| Material | Duplex 2205 (S31803/S32205) / Super Duplex 2507 (S32750) |
| OD Range | 6 – 406mm (2205) / 6 – 323mm (2507) |
| WT Range | 1.0 – 50mm |
| Standard | ASTM A790 / ASME SA-790 |
| Process | Cold finished |
| PREN | 34-35 (2205) / 40-43 (2507) |
| Compliance | NACE MR0175 / NORSOK M-650 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (2205) | ≥ 655 MPa (95 ksi) |
| Yield Strength 0.2% (2205) | ≥ 450 MPa (65 ksi) |
| Tensile Strength (2507) | ≥ 800 MPa (116 ksi) |
| Yield Strength 0.2% (2507) | ≥ 550 MPa (80 ksi) |
Typical Applications
Offshore platforms & subsea pipingSWRO desalination plantsSour service (H₂S) flowlinesGeothermal energyChemical tanker cargo systems
Material Specifications
View detailed chemical composition, mechanical properties, and corrosion resistance data:
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