Zain Fittings has earned a solid reputation as a reliable manufacturer and supplier of top-notch Alloy Steel WP22 Buttweld Fittings in Surabaya, Indonesia. We proudly serve a growing clientele in Jakarta and beyond. Our dedication to precision engineering and adherence to international standards sets us apart. We specialize in crafting durable, high-performance buttweld fittings that cater to both industrial and commercial needs. Designed to endure high-pressure conditions and extreme temperatures, our fittings are perfect for the demanding requirements of the oil & gas, petrochemical, and power generation industries. When it comes to Alloy Steel WP22 solutions in Indonesia, Zain Fittings is your trusted partner.
| Specification : | ASTM A182 F91 Forged Fittings |
|---|---|
| Size | Threaded Fittings = ½” – 4” |
| Pressure Rating | Threaded Fittings = Class 2000, Class 3000, Class 6000 |
| Type Of Pipe systems | 45 Deg Elbow, Equal tee, Full Coupling, Reducing Tee, 90 Deg Elbow, Half Coupling, Street Elbow, Bull Plug, Boss, Union (Male/Female), Lateral Outlet, 45 Lateral Tee, Equal Cross, Pipe Cap, Branch Outlets, Swage Nipple. |
| Thread Connections | ASME B16.11 (Socket Welding and Threaded) Fittings, MSS-SP-83 (Class Unions) Fittings, ASME B16.3 (Malleable Iron Fittings) Fittings, ASME B16.4 ( Gray Iron Fittings) Fittings, ASME B16.39 (Malleable Iron Unions) Fittings, ASME B16.34 (Valves — Flanged) Fittings, ASME B16.39 (Malleable Iron Pipe Unions Fittings, 150#, 250#, Or 300#). |
| Standards | ASME B16.11 (American Standard), Bs3799, MSS SP 79, JIS B2302, MSS-SP-97 (Threadolet), MSS-SP-83 (Union), ASME B36.19 (Nipple) |
| Types Of Thread | NPT Fittings, BSPP Fittings, BSPT Fittings, PF Fittings, PT Fittings, MPT Fittings |
| Applications | Oil and Gas Chemical Power station Water Pipeline Noncritical Applications Fire Protection |
| Advantages Of | Simple Usage Easy installation Economic as cheaper |
Alloy Steel F91 Forged Fittings are made with a balanced composition of chromium (8.00-9.50%), molybdenum (0.85-1.05%), carbon (0.08-0.12%), manganese (0.30-0.60%), silicon (0.20-0.50%), vanadium (0.18-0.25%), and trace amounts of phosphorus and sulfur. This precise blend enhances their strength, corrosion resistance, and thermal stability. With a tensile strength of 585 MPa, yield strength of 415 MPa, and elongation of around 20%, these fittings offer exceptional toughness and creep resistance. Their durability makes them ideal for high-pressure, high-temperature applications in power plants and petrochemical industries.
| Gr | C | Mn | Si | S | P | Cr | Mo |
| ASTM A182 F91 Forged Fittings | 0.15 | 0.3 – 0.6 | 0.5 | 0.03 | 0.03 | 4 – 6 | 0.044 – 0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| ASTM A182 F91 Forged Fittings | 275 | 485 | 20 |
Alloy Steel WP22 Buttweld Fittings are primarily made up of Chromium (2.00–2.50%) and Molybdenum (0.87–1.13%), along with carefully balanced levels of carbon, manganese, phosphorus, sulfur, and silicon. These elements work together to boost corrosion resistance, heat tolerance, and mechanical strength. Typically, these fittings boast a tensile strength ranging from 415 to 585 MPa, a yield strength of at least 205 MPa, and a minimum elongation of 20%. They also exhibit impressive hardness and stress rupture resistance, making them well-suited for high-temperature applications in power plants and refineries. At Zain Fittings, we ensure that all our products meet the ASTM A234 WP22 standards.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choose Alloy Steel F91 Forged Fittings from Zain Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Alloy Steel F91 Forged Fittings offer numerous advantages, including exceptional strength, making them suitable for high-pressure and high-temperature applications. Their excellent corrosion resistance and thermal stability ensure long-term durability in harsh environments. With superior creep resistance and oxidation protection, they perform reliably in critical industrial systems. These fittings also offer excellent weldability, machinability, and ease of installation. Their resistance to fatigue and wear under extreme conditions ensures minimal maintenance and downtime, making them a preferred choice for industries such as power generation, petrochemical, and aerospace, where performance and safety are paramount.
Yes, custom sizes for Alloy Steel F91 Forged Fittings are available at Zain Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@zainfittings.id.
| STANDARD | UNS | WERKSTOFF NR. | Trade Name |
| ASTM A182 F91 Forged Fittings | K90901 | 1.4903 | 9Cr-1Mo-V |
| DN | NPS | Center to End NPT Elbow, NPT Tee, NPT Cross A | Center to End 45 Deg Elbow C | O.D. of Band H | Min. Wall Thick. G | Length of Thread. Minimum (1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | B | L2 | ||
| 6 | 1/8 | 21 | 21 | 25 | 17 | 17 | 19 | 22 | 22 | 25 | 3.18 | 3.18 | 6.35 | 6.4 | 6.7 |
| 8 | 1/4 | 21 | 25 | 28 | 17 | 19 | 22 | 22 | 25 | 33 | 3.18 | 3.30 | 6.60 | 8.1 | 10.2 |
| 10 | 3/8 | 25 | 28 | 33 | 19 | 22 | 25 | 25 | 33 | 38 | 3.18 | 3.51 | 6.98 | 9.1 | 10.4 |
| 15 | 1/2 | 28 | 33 | 38 | 22 | 25 | 28 | 33 | 38 | 46 | 3.18 | 4.09 | 8.15 | 10.9 | 13.6 |
| 20 | 3/4 | 33 | 38 | 44 | 25 | 28 | 33 | 38 | 46 | 56 | 3.18 | 4.32 | 8.53 | 12.7 | 13.9 |
| 25 | 1 | 38 | 44 | 51 | 28 | 33 | 35 | 46 | 56 | 62 | 3.68 | 4.98 | 9.93 | 14.7 | 17.3 |
| 32 | 1-1/4 | 44 | 51 | 60 | 33 | 35 | 43 | 56 | 62 | 75 | 3.89 | 5.28 | 10.59 | 17.0 | 18.0 |
| 40 | 1-1/2 | 51 | 60 | 64 | 35 | 43 | 44 | 62 | 75 | 84 | 4.01 | 5.56 | 11.07 | 17.8 | 18.4 |
| 50 | 2 | 60 | 64 | 83 | 43 | 44 | 52 | 75 | 86 | 102 | 4.27 | 7.14 | 12.09 | 19.0 | 19.2 |
| 65 | 2-1/2 | 76 | 83 | 95 | 52 | 52 | 64 | 92 | 102 | 121 | 5.61 | 7.65 | 15.29 | 23.6 | 28.9 |
| 85 | 3 | 86 | 95 | 106 | 64 | 64 | 79 | 109 | 121 | 146 | 5.99 | 8.84 | 16.64 | 25.9 | 30.5 |
| 100 | 4 | 106 | 114 | 114 | 79 | 79 | 79 | 146 | 152 | 152 | 6.55 | 11.18 | 18.67 | 27.7 | 33.0 |
| Normal Pipe Size | A | B | QTY | Weight In KG |
|---|---|---|---|---|
| ¼ | 0.81 | 0.88 | 160 | 0.20 |
| ⁄ | 0.97 | 1.00 | 130 | 0.26 |
| ½ | 1.12 | 1.31 | 100 | 0.57 |
| ¾ | 1.31 | 1.5 | 75 | 0.71 |
| 1 | 1.5 | 1.81 | 40 | 1.08 |
| 1 ¼ | 1.75 | 2.19 | 25 | 1.68 |
| 1 ½ | 2.00 | 2.44 | 18 | 2.38 |
| 2 | 2.38 | 2.97 | 10 | 3.55 |
| 2 ½ | 3.00 | 3.62 | 4 | 6.22 |
| 3 | 3.38 | 4.31 | 2 | 10.36 |
| 4 | 4.19 | 5.75 | 1 | 23.91 |
Alloy Steel WP22 Buttweld Fittings find their place in various industries that demand high strength and resistance to high temperatures. This includes oil and gas refineries, thermal and nuclear power plants, chemical processing facilities, and the petrochemical sector. Their outstanding weldability and durability make them perfect for connecting pipes in high-pressure settings, effectively transporting steam, gas, and corrosive fluids. In Jakarta, where industrial growth is on the rise, these fittings play a crucial role in supporting safe and efficient piping systems across both infrastructure and energy sectors. Zain Fittings is committed to delivering exceptional performance by providing fittings that meet rigorous quality and international compliance standards, ensuring longevity 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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