Zain Fittings stands out as a top-notch manufacturer and supplier of premium Super Duplex Steel Pipe Fittings, proudly rooted in Surabaya, Indonesia. With years of experience under our belt and a strong dedication to quality, we cater to clients all over the world, including those in Cape Town, South Africa. Our extensive selection of pipe fittings is designed to tackle the most demanding industrial needs, boasting exceptional resistance to corrosion, impressive strength, and remarkable durability. At Zain Fittings, we are committed to providing products that meet international standards, ensuring optimal performance and reliability for applications in oil & gas, petrochemicals, marine, and power generation.
Standard – ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43.
DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN : EN10253-1, EN10253-2
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated
Size: 1/2″ to 36″
Form: Butt weld Straight Tees, Fitting Butt weld Straight Crosses
Straight Tees are typically composed of high-quality materials such as stainless steel, carbon steel, or alloys like Duplex or Super Duplex, chosen based on the application’s requirements for strength, corrosion resistance, and durability. The mechanical properties depend on the specific material used, but commonly, these fittings exhibit a tensile strength ranging from 500 to 900 MPa, yield strength from 250 to 700 MPa, and elongation values typically between 20-30%. With excellent fatigue and pressure resistance, Straight Tees are engineered to perform reliably in demanding applications such as fluid and gas transmission systems, capable of withstanding high-pressure, high-temperature conditions while maintaining structural integrity.
Stainless Steel Butt weld Straight Tees & Crosses: ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Butt weld Straight Tees & Crosses : ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Alloy Steel Butt weld Straight Tees & Crosses : ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
Duplex Steel Butt weld Straight Tees & Crosses : ASTM A815, ASME SA815 UNS No S31803, S32205
Super Duplex Butt weld Straight Tees & Crosses : ASTM A815, ASME SA815 UNS No S32750, S32950
Nickel Alloy Butt weld Straight Tees & Crosses : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.
Low Temperature Carbon Steel Butt weld Straight Tees & Crosses : ASTM A420 WPL3, A420 WPL6
The Super Duplex Steel Pipe Fittings from Zain Fittings are primarily composed of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and a well-balanced amount of iron. This distinctive blend significantly boosts their resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, these fittings deliver high tensile strength (usually exceeding 750 MPa), excellent yield strength, and outstanding impact toughness, even in freezing temperatures. Their unique dual-phase microstructure, featuring both ferritic and austenitic phases, ensures superior structural integrity, making them perfect for the challenging environments found in Cape Town’s industrial sectors.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choose Straight Tees 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.
Straight Tees offer several advantages in piping systems, including efficient flow splitting and combining capabilities in a straightforward design. They provide a reliable and cost-effective solution for branching pipes, allowing for seamless integration into various industrial systems. These fittings are available in a wide range of materials, such as stainless steel, carbon steel, and alloys, ensuring suitability for different applications. Straight Tees are designed to withstand high-pressure and high-temperature environments, offering durability, strength, and resistance to corrosion. Their simple design also makes them easy to install and maintain in fluid and gas transmission systems.
Yes, custom sizes for Straight Tees 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.
| NPS | O.D. D | Center-to-End C | Center-to-End M |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 29 | 29 |
| 1 | 33.4 | 38 | 38 |
| 1¼ | 42.2 | 48 | 48 |
| 1½ | 48.3 | 57 | 57 |
| 2 | 60.3 | 64 | 64 |
| 2½ | 73 | 76 | 76 |
| 3 | 88.9 | 86 | 86 |
| 3½ | 101.6 | 95 | 95 |
| 4 | 114.3 | 105 | 105 |
| 5 | 141.3 | 124 | 124 |
| 6 | 168.3 | 143 | 143 |
| 8 | 219.1 | 178 | 178 |
| 10 | 273 | 216 | 216 |
| 12 | 323.8 | 254 | 254 |
| 14 | 355.6 | 279 | 279 |
| 16 | 406.4 | 305 | 305 |
| 18 | 457 | 343 | 343 |
| 20 | 508 | 381 | 381 |
| 22 | 559 | 419 | 419 |
| 24 | 610 | 432 | 432 |
| 26 | 660 | 495 | 495 |
| 28 | 711 | 521 | 521 |
| 30 | 762 | 559 | 559 |
| 32 | 813 | 597 | 597 |
| 34 | 864 | 635 | 635 |
| 36 | 914 | 673 | 673 |
| 38 | 965 | 711 | 711 |
| 40 | 1016 | 749 | 749 |
| 42 | 1067 | 762 | 711 |
| 44 | 1118 | 813 | 762 |
| 46 | 1168 | 851 | 800 |
| 48 | 1219 | 889 | 838 |
Zain Fittings’ Super Duplex Steel Pipe Fittings are widely utilized across various industries in Cape Town, South Africa. They are particularly well-suited for offshore oil and gas exploration, chemical processing, desalination plants, and marine settings, thanks to their remarkable corrosion resistance and mechanical strength. Power generation facilities and petrochemical refineries also depend on these fittings for their durability and performance in extreme pressure and temperature conditions. With their excellent strength-to-weight ratio, they prove to be cost-effective in the long run, minimizing maintenance and downtime. Zain Fittings guarantees that all products meet the highest standards of quality and reliability.
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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