Zain Fittings stands out as a top-notch manufacturer and supplier of high-quality Super Duplex Steel Pipe Fittings, proudly rooted in Surabaya, Indonesia. With years of experience under our belt and a strong commitment to excellence, we cater to clients all around the world, including those in Cape Town, South Africa. Our extensive range of pipe fittings is designed to tackle the toughest industrial challenges, boasting impressive resistance to corrosion, remarkable strength, and outstanding durability. At Zain Fittings, we’re all about delivering products that meet international standards, ensuring top-notch performance and reliability for applications in oil & gas, petrochemicals, marine, and power generation.
| Specifications | : | ASTM A403 ASME SA 182 |
| Tube Size | : | 1/16”OD to 2”OD, 2mm OD to 50mm OD |
| Thread | : | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
| Pressure Rating | : | 6000PSI for Stainless Steel, 300/1000/3000PSI for Brass |
Stainless Steel 309 Pipe Fittings contain 22-24% Chromium, 12-15% Nickel, up to 2% Manganese, 0.045% Phosphorus, 0.03% Carbon, 1% Silicon, 0.03% Sulfur, and trace elements. This composition provides exceptional heat and oxidation resistance. SS 309 offers a tensile strength of approximately 620 MPa and a yield strength of 310 MPa, with an elongation of 45% and a Brinell hardness of around 225 HB. These properties ensure excellent performance in high-temperature environments while maintaining durability and toughness for industrial applications.
| Grade | C | Mn | Si | P | S | Cr | Ni | FE |
| SS 309 | 0.20 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 22.0 – 24.0 | 12.0 – 15.0 | Balance |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 309 | 7.8 g/cm3 | 1200 ℃ | 586 MPa | 310 MPa | 40 % | 202 |
The Super Duplex Steel Pipe Fittings we offer are made up of a unique blend of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and just the right amount of iron. This special composition boosts their resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, these fittings deliver high tensile strength (usually over 750 MPa), excellent yield strength, and impressive impact toughness, even in freezing temperatures. Their dual-phase microstructure, combining ferritic and austenitic phases, ensures superior structural integrity, making them perfect for the demanding industrial landscape in Cape Town.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 309 Pipe Fittings from Khuliso Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
| SS 309 | S30900 | 1.4828 | – | – | SUS 309 | – | – |
Stainless Steel 309 Pipe Fittings offer superior heat resistance, making them ideal for high-temperature applications up to 1000°C. Their excellent oxidation and corrosion resistance ensure durability in harsh environments, including those exposed to acids and high humidity. These fittings exhibit high tensile and yield strength, ensuring reliability in demanding industrial settings. Easy to fabricate and weld, they maintain structural integrity during thermal cycling. With good toughness and creep resistance, Stainless Steel 309 fittings are perfect for applications in furnaces, heat exchangers, and petrochemical industries, delivering long-lasting performance and versatility.
| All Fittings | 90°and 45° Ells and Tees | Orangeucers and Lap Joint Stub | Caps | 180° Returns | Angularity Tol | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Plane Size (NPS) | Outside(1) Diameter at Bevel | Inside(1) Diameter at End | Wall(2) Thickness | Centre-to- End Dimension A,B,C,M | Overall Length L | Overall Length E | Centre-to- Centre Dimension O | Back-to- Face Dimension K | Alignment at Ends U | Nominal Pipe SIze | Off Angle Q | Off Angle P |
| 1/2 TO 2-1/2 | +1/16 | ±1/32 | Not less than 87-1/2% of Normal Thickness | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 12 to 4 | 1/32 | 1/16 |
| -1/32 | 5 to 8 | 1/16 | 1/8 | |||||||||
| 3 TO 3-1/2 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 10 to 12 | 3/32 | 3/16 | |
| 4 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 14 to 16 | 3/32 | 1/4 | |
| 5 TO 8 | +1/32 | ±1/16 | ±1/16 | ±1/16 | ±1/4 | ±1/4 | ±1/4 | ±1/32 | 18 to 24 | 1/8 | 3/8 | |
| -1/16 | ||||||||||||
| 10 TO 18 | +1/16 | ±1/8 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | All dimensions are in inches | |||
| -1/8 | ||||||||||||
| 20 TO 24 | +1/4 | ±3/32 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | ||||
| -3/32 | ||||||||||||
Yes, custom sizes are available for Stainless Steel 309 Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@khulisofittings.co.za.
Zain Fittings’ Super Duplex Steel Pipe Fittings are widely utilized across various industries in Cape Town, South Africa. They’re particularly well-suited for offshore oil and gas exploration, chemical processing, desalination plants, and marine environments, thanks to their exceptional corrosion resistance and mechanical strength. Power generation facilities and petrochemical refineries also depend on these fittings for their durability and performance under extreme pressure and temperature conditions. Plus, their excellent strength-to-weight ratio makes them a cost-effective choice in the long run, minimizing maintenance and downtime. At Zain Fittings, we ensure that all our products meet the highest standards.
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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