Grant Fittings, located in Manila, Philippines, stands out as a top manufacturer and supplier of high-quality piping solutions, particularly known for their Super Duplex Steel UNS S32750 Buttweld Fittings. These fittings are celebrated for their precision engineering and remarkable durability, making them reliable choices for extremely corrosive and high-pressure environments. Grant Fittings takes pride in ensuring that every UNS S32750 buttweld fitting adheres to strict industrial standards, offering excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Commonly found in the oil and gas, chemical, petrochemical, and marine sectors, these fittings provide leak-proof, long-lasting connections that boost operational safety, efficiency, and reliability in essential piping systems.
Specifications ASTM A815 / ASME SA815
Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size 1/2″ NB to 24″NB in
Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
The Super Duplex Steel UNS S32750 Buttweld Fittings are made up of iron combined with 24–26% chromium, 6–8% nickel, 3–5% molybdenum, along with trace elements of nitrogen and manganese, resulting in a duplex microstructure of austenite and ferrite. This unique composition grants them outstanding mechanical properties, such as a tensile strength ranging from 850–1000 MPa, yield strength between 550–700 MPa, and an elongation of 25–30%. These fittings are known for their exceptional hardness, toughness, and fatigue resistance, making them perfect for high-pressure, high-temperature, and highly corrosive applications while ensuring structural integrity.
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N | Fe |
| Super Duplex S32750 | 0.030 max. | 2.00 max. | 1.00 max. | 0.030 max. | 0.020 max. | 22.0 – 23.0 | 4.50 – 6.50 | 3.0 – 3.5 | 0.14 – 0.20 | 63.72 min. |
| Super Duplex S32760 | 0.030 max. | 2.00 max. | 1.00 max. | 0.030 max. | 0.020 max. | 21.0 – 23.0 | 4.50 – 6.50 | 2.50 – 3.50 | 0.08 – 0.20 | 63.54 min |
| UNS No | Grade | Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32750 | 7.8 | 0.281 | 1350 | 2460 | ||
| S32750 | 2507 | 550 | 795 | 15 | 310 | 32* |
Grant Fittings is a leading supplier of Super Duplex Steel UNS S32750 Buttweld Fittings in Manila, Philippines. We offer an extensive range of Super Duplex Steel UNS S32750 Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WERKSTOFF NR. |
| Super Duplex 2507 | S32750 / S32760 | 1.4410 |
Choose Super Duplex Steel UNS S32750 Buttweld Fittings from Grant Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Super Duplex Steel UNS S32750 Buttweld Fittings offer several advantages, including superior resistance to corrosion, pitting, and crevice corrosion, making them ideal for harsh environments like seawater, chemical processing, and oil & gas applications. Their high tensile strength and exceptional resistance to stress corrosion cracking ensure long-lasting durability under pressure. The material’s combination of high chromium and molybdenum content provides enhanced resistance to chloride environments, while its toughness and resistance to fatigue make it suitable for critical systems. Additionally, these fittings offer improved performance at elevated temperatures.
Yes, custom sizes for Super Duplex Steel UNS S32750 Buttweld Fittings are available at Grant Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@grantfittings.com
| Nominal Pipe Size | Outside Diameter | Caps | Straight Tees | Straight Crosses | Stub Ends | |||
| inch | mm | inch | Length (inch) | Center to End (inch) | Center to End (inch) | Lap Diameter (inch) | Long Length (inch) | Short Length (inch) |
| 1/2 | 21.3 | 0.840 | 1 | 1 | – | 1 3/8 | 3 | 2 |
| 3/4 | 26.7 | 1.050 | 1 | 1 1/8 | – | 1 11/16 | 3 | 2 |
| 1 | 33.4 | 1.315 | 1 1/2 | 1 1/2 | 1 1/2 | 2 | 4 | 2 |
| 1 1/4 | 42.2 | 1.660 | 1 1/2 | 1 7/8 | 1 7/8 | 2 1/2 | 4 | 2 |
| 1 1/2 | 48.3 | 1.900 | 1 1/2 | 2 1/4 | 2 1/4 | 2 7/8 | 4 | 2 |
| 2 | 60.3 | 2.375 | 1 1/2 | 2 1/2 | 2 1/2 | 3 5/8 | 6 | 2 1/2 |
| 2 1/2 | 73.0 | 2.875 | 1 1/2 | 3 | 3 | 4 1/8 | 6 | 2 1/2 |
| 3 | 88.9 | 3.500 | 2 | 3 3/8 | 3 3/8 | 5 | 6 | 2 1/2 |
| 3 1/2 | 101.6 | 4.000 | 2 1/2 | 3 3/4 | 3 3/4 | 5 1/2 | 6 | 3 |
| 4 | 114.3 | 4.500 | 2 1/2 | 4 1/8 | 4 1/8 | 6 3/16 | 6 | 3 |
| 5 | 141.3 | 5.563 | 3 | 4 7/8 | 4 7/8 | 7 5/16 | 8 | 3 |
| 6 | 168.3 | 6.625 | 3 1/2 | 5 5/8 | 5 5/8 | 8 1/2 | 8 | 3 1/2 |
| 8 | 219.1 | 8.625 | 4 | 7 | 7 | 10 5/8 | 8 | 4 |
| 10 | 273.1 | 10.750 | 5 | 8 1/2 | 8 1/2 | 12 3/4 | 10 | 5 |
| 12 | 323.9 | 12.750 | 6 | 10 | 10 | 15 | 10 | 6 |
| DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
| 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | |
| 8 | 0.02 | 0.01 | 0.03 | 0.03 | 0.02 | 0.06 | 0.04 | 0.03 | 0.07 |
| 10 | 0.03 | 0.02 | 0.05 | 0.03 | 0.02 | 0.03 | 0.06 | 0.04 | 0.09 |
| 15 | 0.06 | 0.03 | 0.09 | 0.08 | 0.04 | 0.10 | 0.10 | 0.05 | 0.14 |
| 20 | 0.07 | 0.03 | 0.13 | 0.08 | 0.04 | 0.17 | 0.11 | 0.05 | 0.20 |
| 25 | 0.14 | 0.08 | 0.28 | 0.15 | 0.11 | 0.29 | 0.22 | 0.14 | 0.38 |
| 32 | 0.23 | 0.11 | 0.49 | 0.26 | 0.17 | 0.59 | 0.40 | 0.23 | 0.68 |
| 40 | 0.30 | 0.17 | 0.68 | 0.40 | 0.23 | 0.86 | 0.51 | 0.29 | 1.02 |
| 50 | 0.50 | 0.25 | 0.85 | 0.70 | 0.4 | 1.28 | 0.91 | 0.59 | 1.59 |
| 65 | 0.85 | 0.48 | 1.41 | 1.40 | 0.77 | 2.19 | 1.81 | 0.99 | 3.13 |
| 80 | 1.25 | 0.63 | 1.77 | 2.20 | 1.08 | 3.31 | 2.97 | 1.50 | 4.45 |
| 90 | 1.70 | 0.75 | 2.67 | 2.83 | 1.42 | 4.08 | 4.00 | 2.00 | 5.44 |
| 100 | 2.10 | 1.08 | 3.46 | 4.47 | 2.09 | 5.27 | 6.18 | 2.81 | 7.71 |
| 150 | 5.45 | 2.72 | 8.07 | 10.89 | 5.44 | 10.99 | 16.32 | 8.16 | 13.61 |
| 200 | 10.20 | 5.33 | 15.65 | 21.54 | 10.77 | 20.91 | 33.11 | 16.56 | 28.12 |
| 250 | 18.15 | 9.75 | 26.46 | 38.56 | 19.27 | 35.38 | 51.71 | 25.86 | 49.90 |
| 300 | 25.80 | 13.62 | 39.46 | 59.42 | 29.71 | 62.14 | 79.38 | 39.69 | 83.91 |
Super Duplex Steel UNS S32750 Buttweld Fittings are widely utilized in industries that demand high corrosion resistance and mechanical strength. They are particularly suited for both offshore and onshore oil and gas platforms, chemical and petrochemical facilities, seawater desalination systems, and the pulp and paper industry. Built to withstand aggressive substances like brines, acids, and caustic solutions, these fittings guarantee durable, leak-proof connections. Their superior performance not only cuts down on maintenance costs but also enhances operational safety, providing reliable, long-term service in critical and challenging industrial piping systems.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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