Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A790 UNS S32750 Seamless Austenitic Stainless Super Duplex Steel Pipe for Oil and Gas Applications
YUHONG GROUP is a leading manufacturer of high-performance stainless steel and duplex pipes, with over 30 years of expertise in serving the global oil & gas industry. Our ASTM A790 UNS S32750 Seamless Super Duplex Steel Pipes are engineered for the most demanding subsea and sour service applications.
Heat Treatment Specifications for S32750
| Parameter | Requirement |
| UNS Designation | S32750 |
| Type | 2507 |
| Heat Treatment Temperature | 1880–2060°F (1025–1125°C) |
| Quenching Method | Rapid cooling in air or water |
| Material Standard | ASTM A270/A270M (as referenced in the original table) |
Chemical Composition of UNS S32750
| Element | Requirement (%) |
| Carbon (C), max | 0.03 |
| Manganese (Mn), max | 1.2 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.02 |
| Silicon (Si), max | 0.8 |
| Nickel (Ni) | 6.0–8.0 |
| Chromium (Cr) | 24.0–26.0 |
| Molybdenum (Mo) | 3.0–5.0 |
| Nitrogen (N) | 0.24–0.32 |
| Copper (Cu), max | 0.5 |
| Tungsten (W) | 0.50–1.00 |
Mechanical Properties of UNS S32750
| Property | Requirement |
| UNS Designation | S32750 |
| Type | 2507 |
| Tensile Strength, min | 116 ksi [800 MPa] |
| Yield Strength, min | 80 ksi [550 MPa] |
| Elongation, min | 15% |
| Hardness, max (HBW) | 300 |
| Hardness, max (HRC) | 32 |
Advantages of S32750 in Oil & Gas Applications
