Super Duplex Steel Buttweld Fittings Manufacturer and Supplier in Chennai, India
Meet Fittings, Chennai, India-based, is a reliable producer and distributor of *Super Duplex Steel Buttweld Fittings*, providing high-quality piping products for highly corrosive and high-pressure industrial applications. Made from high-end Super Duplex grades such as UNS S32750 and UNS S32760, these buttweld fittings possess superior mechanical strength together with good resistance against pitting, crevice corrosion, and stress corrosion cracking. Meet Fittings offers a full line of buttweld fittings,—elbows, tees, reducers, crosses, and caps—designed to global standards. Offshore oil & gas, desalination, petrochemical, marine, and chemical processing industries use them for long, high-performance service.
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Super Duplex Steel Buttweld Fittings Specification
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
Super Duplex Steel Buttweld Fittings are composed of a combination of approximately 50% austenitic and 50% ferritic stainless steel. This dual-phase structure provides enhanced strength and exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion. Key elements include chromium (20-22%), molybdenum (3-5%), and nickel (4-6%), which contribute to the alloy’s outstanding corrosion resistance. The mechanical properties of Super Duplex Steel include a tensile strength of 750-1000 MPa and a yield strength of 500 MPa, ensuring excellent durability and performance in harsh environments such as offshore, chemical, and petrochemical industries.
Super Duplex Steel Buttweld Fittings Chemical Compostion
| 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 |
Super Duplex Steel Buttweld Fittings Mechanical Properties
| 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* |
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Largest Super Duplex Steel Buttweld Fittings Supplier in Chennai, India
Super Duplex Steel Buttweld Fittings have an approximate composition of 25% chromium, 7% nickel, 3.5–4% molybdenum, and nitrogen content, with a high Pitting Resistance Equivalent Number (PREN > 40). The fittings have a duplex (austenitic-ferritic) microstructure, having tensile strength of up to 800 MPa and yield strength of approximately 550 MPa. The chemistry of the alloy is balanced, which provides excellent resistance against chloride-induced corrosion, erosion, and fatigue in addition to excellent weldability and thermal stability under harsh service conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
If You Are Looking To Buy High Quality
Super Duplex Steel Buttweld Fittings Equivalent Grade
| STANDARD | UNS | WERKSTOFF NR. |
| Super Duplex 2507 | S32750 / S32760 | 1.4410 |
Why Choose Super Duplex Steel Buttweld Fittings from Meet Fittings?
Choose Super Duplex Steel Buttweld Fittings from Meet Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
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Super Duplex Steel Buttweld Fittings offer numerous advantages, including exceptional corrosion resistance, particularly in chloride-rich environments, making them ideal for marine, chemical, and petrochemical industries. Their high strength, with yield strength up to 500 MPa and tensile strength ranging from 750-1000 MPa, ensures durability under high pressure. These fittings are resistant to stress corrosion cracking, pitting, and crevice corrosion. Super Duplex Steel also has excellent weldability, making installation and maintenance easier. Their versatility, combined with superior performance, makes them a preferred choice for critical applications in demanding industries.
Types of Super Duplex Steel Buttweld Fittings
Are Custom Sizes Available for Super Duplex Steel Buttweld Fittings?
Yes, custom sizes for Super Duplex Steel Buttweld Fittings are available at Meet Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@meetfitings.co.in
Super Duplex Steel Buttweld Fittings Dimensions
| 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 |
Super Duplex Steel Buttweld Fittings Weight Chart
| 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 |
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Application Industry of Super Duplex Steel Buttweld Fittings
Super Duplex Steel Buttweld Fittings are widely utilized in mission-critical systems where high strength, corrosion resistance, and leak-free connections are needed. Typical applications are for subsea pipelines, offshore platforms, heat exchangers, pressure vessels, desalination plants, chemical processing systems, and marine structures. Their endurance in aggressive chemical and seawater environments, as well as under mechanical stress, makes them a favored option for mission-critical applications. These connectors ensure long lifespan, less maintenance, and consistent performance under high pressure and temperature conditions, and thus are a requirement in today’s industrial piping network.
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