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.
| Grade | SS 304 | Stainless Steel 304 | UNS S30400 |
| Standard | ASTM A403 / ASME SA403 |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Thickness | 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75 |
| Size | 1/2″ NB – 48″ NB |
| Form | 90 Elbow, 45 Elbow, Long Radius Elbow, Short Radius Elbow, Concentric Orangeucer, Eccentric Orangeucer, Equal Tee, Unequal Tee, Lateral Tee, Cross, Bends 1.5d, 3d, 5d, 10d, U bend, 180 Deg Bend, Short Stub End, Long stub end, End Cap, Dish Cap |
| Schedule | SCH 5 To SCH XXS |
| Type | Seamless / Welded / Fabricated |
Stainless steel buttweld fittings are made of alloys such as SS 304, 316, or 410, which contain iron, chromium (10.5-30%), nickel, and molybdenum for corrosion resistance they exhibit good strength, with tensile strengths ranging from 515-750 MPa,, . ; These fittings range from 205-450 MPa depending on grade and yield strength Offering high ductility (width: 40%), hardness (Brinnell: 200 max), and toughness, ideal for high pressure and high temperature applications their design ensures for hardness, oxidation resistance and weldability to meet the requirements of piping systems in industrial and commercial applications.
| Grade | C | Mn | Si | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | 8 – 11 | – |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | 8 – 13 | – |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | 8 – 10.5 | – |
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304 | 75 | 30 | 40 | 201 | 92 |
| 304L | 70 | 25 | 40 | 201 | 92 |
| 304H | 75 | 30 | 40 | 201 | 92 |
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.
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | – | – | – | – | – |
Stainless Steel Buttweld 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.
The stainless steel buttweld fitting provides excellent corrosion resistance, and durability in harsh environments. They provide a seamless, smooth surface, reducing turbulence and pressure loss in pipes. These materials are ideal for high-pressure and thermal systems and maintain structural integrity by eliminating frequent joint movements. They are easy to install, cost effective and require little maintenance. Because of their high tensile strength, they resist deformation and withstand mechanical stresses. Available in a variety of sizes and configurations, they are suitable for a variety of industries, including chemical, oil and gas. Their aesthetic finish also makes them suitable for architectural use.
| Nominal PipeSize | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| (inches) | – | Long Radius | Short Radius | Long Radius | Long Radius | |||
| (mm) | (inches) | Center to Face (inches) | Center to Face (inches) | Center to Face (inches) | Radius (inches) | Center to Center (inches) | Back to face (inches) | |
| 1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 1 1/8 | 7/16 | 2 1/4 | 1 11/16 | ||
| 1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Yes, custom sizes for Stainless 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.
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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