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.
| Specifications | : | ASTM A234 / ASME SA234 |
| Size | : | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated) |
| Standards | : | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Thickness | : | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Type | : | Seamless / Welded / Fabricated |
Alloy Steel WP5 Buttweld Fittings are composed of a precise blend of carbon, manganese, phosphorus, sulfur, silicon, chromium, and molybdenum, providing excellent strength and corrosion resistance. This composition enhances their ability to withstand high-pressure and high-temperature conditions. Mechanically, these Buttweld Fittings exhibit superior tensile and yield strength, exceptional elongation, and impressive hardness, ensuring reliable performance in demanding applications. Their resilience and durability make them suitable for pipelines, boilers, and heat exchangers in industries like oil and gas, power generation, and petrochemicals, delivering consistent and leak-proof performance under extreme operational conditions.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP5 | ≤0.15 | ≤0.6 | ≤0.5 | ≤0.04 | ≤0.03 | 4-6 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP5 | 415 – 585 | ≥205 | ≥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 components significantly 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 resistance to stress rupture, 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.
Alloy Steel WP5 Buttweld Fittings from Zain 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.
| O.D. or I.D. Diameter | Equivalent Decimal | Nominal Diameter | Typical Threads In Inch |
| 5/16 | 0.313 | 1/16 | 27 |
| 13/32 | 0.405 | 1/8 | 27 |
| 35/64 | 0.540 | 1/4 | 18 |
| 43/64 | 0.675 | 3/8 | 18 |
| 27/32 | 0.840 | 1/2 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 |
| 1-5/16 | 1.315 | 1 | 11-1/2 |
| 1-21/32 | 1.660 | 1-1/4 | 11-1/2 |
| 1-29/32 | 1.900 | 1-1/2 | 11-1/2 |
| 2-3/8 | 2.375 | 2 | 11-1/2 |
| 2-7/8 | 2.875 | 2-1/2 | 8 |
| 3-1/2 | 3.500 | 3 | 8 |
| 4 | 4.000 | 3-1/2 | 8 |
| 4-1/2 | 4.500 | 4 | 8 |
Alloy Steel WP5 Buttweld Fittings offer exceptional durability, making them ideal for high-pressure and high-temperature environments. Their superior resistance to corrosion, oxidation, and wear ensures longevity, even in harsh industrial conditions. The fittings provide excellent tensile and yield strength, ensuring structural integrity in critical applications. Their seamless design minimizes the risk of leaks and ensures efficient flow of fluids or gases. Easy to weld and install, these fittings reduce downtime during maintenance. Cost-effective and reliable, Alloy Steel WP5 Buttweld Fittings are a preferred choice for demanding industries like oil and gas, power generation, and petrochemicals.
| ASTM A234 WP5 Pipe Fittings (Grade WP5 To WP91) Tolerance | 90 Deg And 45 Deg Elbows And Pipe Tee | Reducer (Concentric/ Eccentric) & Lap Joint Stub End (Long / Short) | Pipe End Caps | |||
| Normal Pipe Size (NPS) Of ASME B16.9 | O. (Outside) D. (Daimeter) at Bevel | I. (Inside) D.(Daimeter) at End | Wall Thickness Of T | Center-to-End Dimension A ,C ,B | Over-all Length Of H | Over-all Length Of F |
| 1/2 to 2-1/2 | +0.06 | Not less than 87.5% of nominal thickness | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| -0.03 | ||||||
| 3 to 3-1/2 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 4 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 5 to 8 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.25 | |
| 10 to 18 | +0.16 | +/- 0.12 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.12 | ||||||
| 20 to 24 | +0.25 | +/- 0.19 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.19 | ||||||
| 26 to 30 | +0.25 | +/- 0.19 | +/- 0.12 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
| 32 to 48 | +0.25 | +/- 0.19 | +/- 0.19 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
Yes, custom sizes are available for Alloy Steel WP5 Buttweld 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@zainfittings.id.
| STANDARD | 348H Pipe Fittings |
| EN | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| JIS | SUS 316L |
| BS | 316S11 / 316S13 |
| UNS | S34809 |
| WERKSTOFF NO. | 1.4546 |
| AFNOR | Z7CND17‐11‐02 |
| GOST | 03Ch17N14M3 / 03Ch17N14M2 |
Alloy Steel WP22 Buttweld Fittings find extensive use in 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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