Machuca Fittings, based in Kuala Lumpur, Malaysia, has earned a solid reputation as a reliable manufacturer and supplier of Duplex Steel Buttweld Fittings. They specialize in providing top-notch solutions tailored for tough industrial settings. Their impressive lineup features elbows, tees, reducers, crosses, and end caps, all meticulously crafted to ensure leak-proof connections, outstanding durability, and long-lasting performance. The unique blend of austenitic and ferritic microstructures in Duplex steels gives them remarkable strength and excellent resistance to corrosion, especially against stress corrosion cracking, pitting, and crevice corrosion. Machuca Fittings guarantees that their Duplex Steel Buttweld Fittings comply with international standards, making them ideal for industries like chemical, petrochemical, marine, oil & gas, and power generation.
| 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. |
These Duplex Steel Buttweld Fittings are made from a well-balanced mix of austenite and ferrite, typically featuring 22–25% chromium, 4–6% nickel, 3–5% molybdenum, and trace amounts of nitrogen. This specific composition results in superior tensile and yield strength, high toughness, and excellent resistance to chloride-induced stress corrosion cracking. Additionally, Duplex fittings are known for their good weldability, ductility, and durability, even in high-pressure and aggressive chemical environments. Their dual-phase structure helps them maintain mechanical integrity and stability across a wide range of temperatures, making them a dependable choice for critical industrial applications.
| 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 |
Machuca Fittings is a leading supplier of Duplex Steel Buttweld Fittings in Kuala lumpur, Malaysia. 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 Machuca 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 Machuca Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@machucafittings.com
Duplex Steel Buttweld Fittings find extensive use in industries that demand high corrosion resistance and mechanical strength. In chemical and petrochemical plants, they are essential for piping systems that handle acids, alkalis, chlorides, and other corrosive substances. The oil and gas sector relies on them in refineries, offshore platforms, and high-pressure processing units. Marine applications benefit from their impressive resistance to seawater and brine. Power generation facilities utilize them in heat exchangers, condensers, and high-temperature piping systems. Their combination of corrosion resistance and mechanical strength makes them a go-to choice for various demanding applications.
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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