Khuliso Fittings, located in Cape Town, South Africa, stands out as a top manufacturer and supplier of high-quality Duplex Steel Buttweld Fittings, catering to clients in Dubai, UAE. Known for their precision engineering and commitment to international standards, Khuliso Fittings provides durable and reliable solutions for demanding industrial applications. With a strong emphasis on exceptional craftsmanship, timely delivery, and outstanding customer service, the company guarantees that each fitting undergoes rigorous quality checks. Their products are built to endure harsh environments, boasting remarkable corrosion resistance, high strength, and long-lasting performance, making them a trusted ally in the global piping and industrial sectors.
| Size | : | 1/2″ to 36″ |
| Standard | : | ASTM / ASME A815 / SA815. |
| Dimensions | : | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | : | UNS No. S31803, S32205, S32550, S32750, S32760. |
| Type | : | Seamless & Welded |
| Schedule | : | Sch 5 TO Sch XXS. |
Duplex Steel Buttweld Fittings are crafted from a balanced blend of austenitic and ferritic stainless steel, which enhances their strength and resistance to corrosion. Typically, they contain 22% chromium, 5–6% nickel, and 3% molybdenum, providing excellent protection against chloride-induced stress corrosion cracking and pitting. Mechanically, these fittings showcase impressive tensile and yield strength, usually around 620 MPa and 450 MPa respectively, along with good elongation and toughness. The duplex microstructure ensures outstanding durability under high pressure and temperature conditions, making them perfect for tough industrial environments where both strength and chemical resistance are crucial.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Khuliso Fittings is a leading supplier of Duplex Steel Buttweld Fittings in Cape Town, South Africa. We offer an extensive range of Duplex Steel 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 | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
Choose Duplex Steel Buttweld Fittings from Khuliso Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Duplex Steel Buttweld Fittings offer numerous advantages, including exceptional strength, high corrosion resistance, and excellent resistance to pitting and stress corrosion cracking. Their unique composition, combining both austenitic and ferritic structures, provides superior mechanical properties, such as high tensile and yield strength, making them suitable for high-pressure and high-temperature applications. These fittings are highly durable in aggressive environments, including those exposed to seawater, chemicals, and other corrosive substances. Duplex Steel Buttweld Fittings are also cost-effective, offering enhanced performance with reduced material costs compared to other stainless steels. They are ideal for critical industrial applications.
Yes, custom sizes for Duplex Steel Buttweld Fittings are available at Khuliso Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@khulisofittings.co.za
These Duplex Steel Buttweld Fittings are extensively utilized in the oil and gas, chemical, petrochemical, and marine industries due to their exceptional corrosion resistance and high mechanical strength. They are perfect for pipelines, pressure vessels, heat exchangers, and structural applications where reliability and longevity are key. These fittings can handle aggressive media, including seawater, acids, and chlorides, making them ideal for both offshore and onshore projects. Their remarkable performance in high-pressure and high-temperature conditions guarantees safe and efficient operations.
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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