Grant Fittings, a leading manufacturer and supplier based in Manila, Philippines, is renowned for delivering top-notch piping solutions tailored for various industries. Their portfolio includes premium alloy WP1 pipe fittings engineered to withstand demanding environments with exceptional strength, corrosion resistance, and thermal stability. Designed for critical applications in sectors like oil and gas, petrochemicals, and power generation, these fittings ensure reliable, leak-proof connections, adhering to rigorous quality standards for enhanced performance and durability.
| Specifications | ASTM A234 / ASME SA234 |
|---|---|
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | Seamless Fittings: 1/2″ – 10″ Welded Fittings: 1/2″ – 48″ |
| Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Manufacturing Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, DN15-DN1200 BS : BS4504, BS4504, BS1560, BS10 JIS : JIS B2311, JIS B2312, JIS B2313, JIS B2316 GOST : GOST 17375, GOST 17376, GOST 30753, GOST 17378, GOST 17379, GOST 17380 EN: EN10253-1, EN10253-2 |
| Types | Seamless / ERW / Welded / Fabricated |
| Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Elbow | Angle : 22.5 deg, 30deg, 45 deg, 90 deg, 180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D. Standard: ASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISO |
| Manufacturing process | Push, Press, Forge, Cast, etc. |
| Specialized manufacturer of | 90º Elbows, Couplings, Reducers, Inserts, Caps, Nipples, 45º Elbows, Tees, Crosses, Equal Tees & Reducing Tees |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Alloy Steel WP1 Pipe Fittings are composed primarily of carbon, manganese, silicon, and molybdenum, with trace amounts of sulfur and phosphorus. This balanced alloy provides excellent strength, toughness, and corrosion resistance. Mechanical properties include a tensile strength of 415 MPa (minimum), yield strength of 205 MPa (minimum), and elongation of 30% (minimum). These fittings are engineered for high-temperature and pressure environments, ensuring durability and reliability in critical industrial applications such as power plants, chemical processing, and refineries. Their robust composition makes them versatile and highly resistant to wear and tear.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP1 | 0.28 max | 0.30- 0.90 | 0.10- 0.50 | 0.045 max | 0.045 max | – | 0.044-0.65 max |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP1 | 220 min | 415 min | 20 |
Grant Fittings stands out as a reliable manufacturer and supplier of Alloy Steel WP1 Pipe Fittings right in the heart of Manila, Philippines. With a focus on top-notch fittings like elbows, tees, reducers, and caps, they cater to essential industries such as power generation, petrochemical, and oil and gas. Each fitting is crafted to meet the rigorous ASTM A335 and ASME B16.9 standards, ensuring they are built to last, offering strength and resistance to high temperatures and pressure. Thanks to their advanced manufacturing techniques and strict quality checks, Grant Fittings guarantees dependable performance in critical piping systems across various industrial sectors in the Philippines.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The Alloy Steel WP1 pipe fittings are crafted from a robust chromium-molybdenum steel alloy, specifically designed for high-temperature applications. Typically, the chemical makeup includes about 1% chromium and 0.5% molybdenum, which together provide remarkable strength, oxidation resistance, and toughness even at elevated temperatures. With tensile strengths around 485 MPa and yield strengths close to 250 MPa, these fittings are perfect for transporting steam, gas, and liquids under challenging conditions. Grant Fittings ensures that all WP1 fittings undergo rigorous testing and certification, meeting international safety and reliability standards.
Alloy Steel WP1 Pipe Fittings offer excellent strength and durability, making them ideal for high-pressure and high-temperature applications. Their corrosion resistance ensures longevity in harsh environments, including chemical processing and power plants. These fittings provide thermal stability and resistance to oxidation, ensuring reliable performance under fluctuating temperatures. With superior weldability and machinability, they facilitate efficient installation and customization. Their cost-effectiveness and versatility make them suitable for diverse industries such as oil and gas, petrochemicals, and refineries. Additionally, they exhibit dimensional accuracy, ensuring leak-proof connections and enhanced system efficiency.
| Nominal Pipe Size | All Fittings | All Fittings | All Fittings | Elbows/ Tees | 180° Return Bends | 180° Return Bends | 180 Deg Return Bends | Reducers | Caps |
|---|---|---|---|---|---|---|---|---|---|
| NPS | O.D. at Bevel (1), (2) | I.D. at End (1), (3), (4) | Wall Thickness (3) | Centre-to-End Dimension A,B,C,M | Centre-to-Centre O | Back-to-Face K | Alignment of Ends U | Overall Length H | Overall Length E |
| ½ to 2½ | 0.06 -0.03 | 0.03 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 3 to 3 ½ | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 4 | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 5 to 8 | 0.09 -0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.25 |
| 10 to 18 | 0.16 -0.12 | 0.12 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 20 to 24 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 26 to 30 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.12 | … | … | … | 0.19 | 0.38 |
| 32 to 48 | 0.25 -0.19 | 0.19 | Not less than 87.5% of nominal thickness | 0.19 | … | … | … | 0.19 | 0.38 |
The Alloy Steel WP1 pipe fittings from Grant Fittings find their place in power plants, oil refineries, petrochemical facilities, and other high-temperature industrial settings. They excel in piping systems that manage steam, hot gases, and corrosive fluids, ensuring secure and durable connections. With a vast inventory and prompt delivery services, Grant Fittings is dedicated to supporting engineers and contractors throughout the Philippines, offering customized Alloy Steel WP1 fittings tailored to meet specific project needs.
Alloy Steel WP1 Pipe Fittings are widely used in industries requiring high strength and excellent corrosion resistance. These fittings are ideal for high-temperature and high-pressure applications in power plants, oil and gas refineries, and chemical processing industries. They are commonly used in steam boilers, heat exchangers, and piping systems handling aggressive media. Known for their durability and ability to withstand extreme conditions, Alloy Steel WP1 fittings are also suitable for petrochemical plants, shipbuilding, and industrial equipment, ensuring long-term performance 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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