Da Nang, Vietnam-based Nguyen Fittings and Plates provides reliable Alloy Steel WP5 Buttweld Fittings, designed to deliver outstanding performance in moderate-temperature piping systems. Manufactured as per ASTM A234 WP5 and ASME B16.9, these fittings in the form of elbows, tees, and reducers are precision-forged and heat-treated to achieve improved durability. Tight dimensional tolerances and high weld quality are offered by our WP5 products. These fittings suit power generation, chemical, and industrial processes and integrate efficiently into diversified piping systems withstanding thermal and pressure variations.
| 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 |
WP5 alloy steel contains approximately 2.25% chromium, 1% molybdenum, and carbon and manganese. It provides tensile strength of about 585 MPa and yield strength of ~415 MPa. WP5 through normal heat treatments such as normalizing demonstrates excellent creep resistance, thermal stability, and high-temperature performance—usually up to ~540 °C. The alloy provides balanced toughness, oxidation resistance, and weldability, which renders buttweld fittings robust and long-lasting for industrial application.
| 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 |
Nguyen Fittings one of the largest suppliers of Alloy Steel WP5 Buttweld Fittings in Da Nang, Vietnam. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Alloy Steel WP5 is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Alloy Steel WP5 Buttweld Fittings in the Vietnam.
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 Nguyen 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@nguyenfittings.com.
| 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 |
WP5 buttweld fittings find extensive application in superheated steam lines, process piping, boiler feed systems, and heat exchanger circuits. They are exceptional for power plants, petrochemical facilities, refinery operations, and industrial chemical processes. In these applications, high-temperature strength and load creep resistance are essential. Buttweld configuration also provides noise-free incorporation within welded systems with less leak possibility at joints. WP5’s resistance to heat and pressure without loss of mechanical integrity is particularly prized in heavy-duty and dynamic industrial conditions.
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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