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 around the world, including those in Cape Town, South Africa. Our extensive selection of pipe fittings is designed to tackle the toughest industrial challenges, boasting exceptional resistance to corrosion, impressive strength, and remarkable durability. At Zain Fittings, we are committed to providing products that meet international standards, ensuring peak performance and reliability for applications in oil & gas, petrochemicals, marine, and power generation.
| Standards | ASTM B381 / ASME SB381 |
| Dimensions | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Class | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Type | Socketweld Fittings, Screwed-Threaded Fittings |
| Thread | NPT, BSPT, BSPP |
| Test Certificates |
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| Specialized manufacturer of | 90º Elbows, 45º Elbows, Tees, Cross, Couplings, Orangeucer Inserts, Barrel Nipple, Unions, Bushing, Socket Weld / Screwed-Threaded Fittings, Plugs |
| STANDARD | WERKSTOFF NR. | UNS |
| Titanium Gr. 5 | 3.7165 | R56400 |
| Element | C | V | N | Al | Ti | Fe | O |
| Titanium Gr.5 | – | 4 min | – | 6 min | 90 min | 0.25 max | 0.2 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | Hardness (Brinell) |
| Titanium Gr.5 | 4.43 g/cm3 | 1632 °C (2970 °F) | Psi – 138000 , MPa – 950 | Psi – 128000 , MPa – 880 | 14 % | – |
Titanium Grade 5 forged fittings, also known as Ti-6Al-4V, are composed of approximately 90% titanium, 6% aluminum, and 4% vanadium, with trace amounts of iron and oxygen. These fittings are renowned for their exceptional mechanical properties, including a high tensile strength of around 895 MPa and excellent fatigue resistance. They exhibit outstanding corrosion resistance, particularly in marine and chemical environments, and retain strength at elevated temperatures. Titanium Gr 5 is lightweight, with a density of 4.43 g/cm³, making it ideal for aerospace, medical, and industrial applications requiring superior strength-to-weight ratios.
The Super Duplex Steel Pipe Fittings from Zain Fittings are crafted from a unique blend of materials, including chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and a well-balanced amount of iron. This special composition 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 dual-phase microstructure, which combines 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.
Titanium Gr 5 Forged 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.
| Nom, Pipe Size | Sock, Bore Diameter B | Depth of Sock, Min | Wall Thickness Minimum | Bore Diameter of Fitting D | Centre to Bottom of Socket | Laying Lengths | Tolerances, ± | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3000# | 6000# | 90º Ells, Tee & Crosses | 45º Ell | Couplings | Half Couplings | ||||||||||||
| A | A | E | F | A | E | F | |||||||||||
| Sock, C | Body G | Sock C | Body G | 3000# | 6000# | 3000# | 6000# | 3000# | 6000# | ||||||||
| 1/8” | .420 .430 | 3/8 | .125 | .095 | .135 | .124 | .254 .284 | .141 | 7/16 | 7/16 | 5/16 | 5/16 | 1/4 | 5/8 | .03 | .06 | .03 |
| 1/4 | .555 .565 | 3/8 | .130 | .119 | .158 | .145 | .349 .379 | .235 | 7/16 | 17/32 | 5/16 | 5/16 | 1/4 | 5/8 | .03 | .06 | .03 |
| 3/8 | .690 .700 | 3/8 | .138 | .126 | .172 | .158 | .478 .508 | .344 | 17/32 | 5/8 | 5/16 | 7/16 | 1/4 | 11/16 | .06 | .12 | .06 |
| 1/2 | .855 .865 | 3/8 | .161 | .147 | .204 | .188 | .607 .637 | .451 | 5/8 | 3/4 | 7/16 | 1/2 | 3/8 | 7/8 | .06 | .12 | .06 |
| 3/4 | 1.065 1.075 | 1/2 | .168 | .154 | .238 | .219 | .809 .839 | .599 | 3/4 | 7/8 | 1/2 | 9/16 | 3/8 | 15/16 | .06 | .12 | .06 |
| 1 | 1.330 1.340 | 1/2 | .196 | .179 | .273 | .250 | 1.034 1.064 | .800 | 7/8 | 1-1/16 | 9/16 | 11/16 | 1/2 | 1-1/8 | .08 | .16 | .08 |
| 1-1/4 | 1.675 1.685 | 1/2 | .208 | .191 | .273 | .250 | 1.365 1.395 | 1.145 | 1-1/16 | 1-1/4 | 11/16 | 13/16 | 1/2 | 1-3/16 | .08 | .16 | .08 |
| 1-1/2 | 1.915 1.925 | 1/2 | .218 | .200 | .307 | .281 | 1.595 1.625 | 1.323 | 1-1/4 | 1-1/2 | 13/16 | 1 | 1/2 | 1-1/4 | .08 | .16 | .08 |
| 2 | 2.406 2.416 | 5/8 | .238 | .218 | .374 | .344 | 2.052 2.082 | 1.674 | 1-1/2 | 1-5/8 | 1 | 1-1/8 | 3/4 | 1-5/8 | .08 | .16 | .08 |
| 2-1/2 | 2.906 2.921 | 5/8 | .301 | .276 | .375 | 2.439 2.499 | 1-5/8 | 1-1/8 | 3/4 | 1-11/16 | .10 | .20 | .10 | ||||
| 3 | 3.535 3.550 | 5/8 | .327 | .300 | .438 | 3.038 3.098 | 2-1/4 | 1-1/4 | 3/4 | 1-3/4 | .10 | .20 | .10 | ||||
| 4 | 4.545 4.560 | 3/4 | .368 | .337 | .531 | 3.996 4.055 | 2-5/8 | 1-5/8 | 3/4 | 1-7/8 | .10 | .20 | .10 | ||||
| ASTM B381 / SB381 | Standard Specification for Titanium and Titanium Alloy Forgings |
| BS21 | Threading. |
| BS3799 | Specification for Forged fittings, screwed and Socket-welding for the petroleum industry |
| ANSI B16.11 | Forged fittings socket-weld and threaded. Socket Weld and Threaded Forged Fittings |
| ANSI/ASME B1.20.1 | Pipe threads, general purpose (inch). |
| ISO 4144 | Titanium fittings threaded to ISO 7-1. |
| MSS SP-95 | Swage(d) Nipples and Bull Plugs |
Titanium Gr 5 forged fittings offer exceptional advantages, including high strength-to-weight ratio, excellent corrosion resistance, and superior mechanical properties. They resist pitting, crevice corrosion, and stress corrosion cracking, making them ideal for harsh environments like marine, chemical, and aerospace applications. With a high tensile strength of approximately 895 MPa, they are lightweight yet robust, reducing overall system weight without compromising durability. Titanium Gr 5 retains strength at elevated temperatures, enhancing performance in demanding conditions. Additionally, it is biocompatible, making it suitable for medical applications like implants and prosthetics.
Yes, custom sizes for Titanium Gr 2 Forged 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 find extensive application 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 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 in extreme pressure and temperature conditions. With a superior 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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