Devang Fittings, Kolkata, India, is a prominent manufacturer and exporter of Alloy Steel WP11 Buttweld Fittings that provide consistent solutions for high-temperature and high-pressure conditions. Devang Fittings, renowned for precision manufacturing and quality control, delivers fittings that are capable of withstanding the most challenging conditions. WP11 Buttweld Fittings, manufactured from a chromium-molybdenum composition, are used extensively in power generation, petrochemical, and oil & gas industries. Their higher heat resistance and strength provide the best performance in critical systems. Devang Fittings is dedicated to providing long-lasting, effective, and engineered piping fittings throughout India and overseas markets.
| 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 |
WP11 Buttweld Fittings made of Alloy Steel contain chromium (1.25%) and molybdenum (0.5%) and trace amounts of carbon, manganese, silicon, phosphorus, and sulfur. This alloy improves the material‘s thermal fatigue, heat, and oxidation resistance, making it ideal for severe service conditions. WP11 fittings deliver high mechanical properties, such as a minimum tensile strength of 415 MPa, yield strength of 205 MPa, and elongation of 30%. These features make WP11 fittings suitable for high-temperature, high-pressure piping systems that need to be long-lasting, corrosion resistant, and structurally stable.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP11 | 0.05-0.2 | 0.3-0.8 | 0.5-1 | ≤0.030 | ≤0.030 | 1-1.5 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP11 | 415-585 | ≥205 | ≥20 |
Devang Fittings one of the largest suppliers of Alloy Steel WP11 Buttweld Fittings in Kolkata, India. 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 WP11 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 WP11 Buttweld Fittings in the India.
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 WP11 Buttweld Fittings from Devang 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.
| ASTM A234 WP11 Fittings Temperature Ratings | Types Of Pressure Ratings Class | ||||
|---|---|---|---|---|---|
| Class 150# | Class 300# | ||||
| 1/4 – 1 (Inch) | 1 1/4 – 2 (Inch) | 2 1/2 – 3 (Inch) | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | – | 935 | 750 | 560 |
| 450 | 232 | – | 725 | 600 | 475 |
| 500 | 260 | – | 510 | 450 | 385 |
| 550 | 288 | – | 300 | 300 | 300 |
Alloy Steel WP11 Buttweld Fittings offer numerous advantages, making them ideal for high-pressure, high-temperature applications. Their composition, featuring chromium and molybdenum, enhances their resistance to oxidation, corrosion, and wear, ensuring long-term durability. WP11 fittings have excellent weldability, strength, and thermal stability, which makes them suitable for demanding industries such as power generation, petrochemical, and oil & gas. They provide superior resistance to thermal fatigue and stress, reducing the risk of failure in extreme conditions. Additionally, WP11 Fittings offer minimal maintenance and extended service life, ensuring cost-effectiveness and reliable performance.
| Normal Size Of Pipe (DN) | Schedule Number | Outer Daimeter In inch millmeter | Wall Thickness inch millmeter | Mass lb/ft kg/m |
|---|---|---|---|---|
| 1/8 6 | 5S | 0.405 10.3 | … | … |
| 1/8 6 | 10S | 0.405 10.3 | 0.049 1.24 | 0.19 0.28 |
| 1/8 6 | 40S | 0.405 10.3 | 0.068 1.73 | 0.24 0.37 |
| 1/8 6 | 80S | 0.405 10.3 | 0.095 2.41 | 0.31 0.47 |
| 1/4 8 | 5S | 0.540 13.7 | … | … |
| 1/4 8 | 10S | 0.540 13.7 | 0.065 1.65 | 0.33 0.49 |
| 1/4 8 | 40S | 0.540 13.7 | 0.088 2.24 | 0.43 0.63 |
| 1/4 8 | 80S | 0.540 13.7 | 0.119 3.02 | 0.54 0.80 |
| 3/8 10 | 5S | 0.675 17.1 | … | … |
| 3/8 10 | 10S | 0.675 17.1 | 0.065 1.65 | 0.42 0.63 |
| 3/8 10 | 40S | 0.675 17.1 | 0.091 2.31 | 0.57 0.84 |
| 3/8 10 | 80S | 0.675 17.1 | 0.126 3.20 | 0.74 1.10 |
| 1/2 15 | 5S | 0.840 21.3 | 0.065 1.65 | 0.54 0.80 |
| 1/2 15 | 10S | 0.840 21.3 | 0.083 2.11 | 0.67 1.00 |
| 1/2 15 | 40S | 0.840 21.3 | 0.109 2.77 | 0.85 1.27 |
| 1/2 15 | 80S | 0.840 21.3 | 0.147 3.73 | 1.09 1.62 |
| 3/4 20 | 5S | 1.050 26.7 | 0.065 1.65 | 0.68 1.02 |
| 3/4 20 | 10S | 1.050 26.7 | 0.083 2.11 | 0.86 1.28 |
| 3/4 20 | 40S | 1.050 26.7 | 0.113 2.87 | 1.13 1.69 |
| 3/4 20 | 80S | 1.050 26.7 | 0.154 3.91 | 1.48 2.20 |
| 1 25 | 5S | 1.315 33.4 | 0.065 1.65 | 0.68 1.02 |
| 1 25 | 10S | 1.315 33.4 | 0.083 2.11 | 0.86 1.28 |
| 1 25 | 40S | 1.315 33.4 | 0.133 3.38 | 1.68 2.50 |
| 1 25 | 80S | 1.315 33.4 | 0.179 4.55 | 2.17 3.24 |
| 1-1/4 32 | 5S | 1.660 42.2 | 0.065 1.65 | 1.11 1.65 |
| 1-1/4 32 | 10S | 1.660 42.2 | 0.109 2.77 | 1.81 2.69 |
| 1-1/4 32 | 40S | 1.660 42.2 | 0.140 3.56 | 2.27 3.39 |
| 1-1/4 32 | 80S | 1.660 42.2 | 0.191 4.85 | 3.00 4.47 |
| 1-1/2 40 | 5S | 1.900 48.3 | 0.065 1.65 | 1.28 1.90 |
| 1-1/2 40 | 10S | 1.900 48.3 | 0.109 2.77 | 2.09 3.11 |
| 1-1/2 40 | 40S | 1.900 48.3 | 0.145 3.68 | 2.72 4.05 |
| 1-1/2 40 | 80S | 1.900 48.3 | 0.200 5.08 | 3.63 5.41 |
| 2 50 | 5S | 2.375 60.3 | 0.065 1.65 | 1.61 2.39 |
| 2 50 | 10S | 2.375 60.3 | 0.109 2.77 | 2.64 3.93 |
| 2 50 | 40S | 2.375 60.3 | 0.154 3.91 | 3.66 5.44 |
| 2 50 | 80S | 2.375 60.3 | 0.218 5.54 | 5.03 7.48 |
| 2-1/2 65 | 5S | 2.875 73 | 0.083 2.11 | 2.48 3.69 |
| 2-1/2 65 | 10S | 2.875 73 | 0.120 3.05 | 3.53 5.26 |
| 2-1/2 65 | 40S | 2.875 73 | 0.203 5.16 | 5.80 8.63 |
| 2-1/2 65 | 80S | 2.875 73 | 0.276 7.01 | 7.67 11.41 |
| 3 80 | 5S | 3.500 88.9 | 0.083 2.11 | 3.03 4.52 |
| 3 80 | 10S | 3.500 88.9 | 0.120 3.05 | 4.34 6.46 |
| 3 80 | 40S | 3.500 88.9 | 0.216 5.49 | 7.58 11.29 |
| 3 80 | 80S | 3.500 88.9 | 0.300 7.62 | 10.26 15.27 |
| 3-1/2 90 | 5S | 4.000 101.6 | 0.083 2.11 | 3.48 5.18 |
| 3-1/2 90 | 10S | 4.000 101.6 | 0.120 3.05 | 4.98 7.41 |
| 3-1/2 90 | 40S | 4.000 101.6 | 0.226 5.74 | 9.12 13.57 |
| 3-1/2 90 | 80S | 4.000 101.6 | 0.318 8.08 | 12.52 18.64 |
| 4 100 | 5S | 4.500 114.3 | 0.083 2.11 | 3.92 5.84 |
| 4 100 | 10S | 4.500 114.3 | 0.120 3.05 | 5.62 8.37 |
| 4 100 | 40S | 4.500 114.3 | 0.237 6.02 | 10.80 16.08 |
| 4 100 | 80S | 4.500 114.3 | 0.337 8.56 | 15.00 22.32 |
| 5 125 | 5S | 5.563 141.3 | 0.109 2.77 | 6.36 9.46 |
| 5 125 | 10S | 5.563 141.3 | 0.134 3.40 | 7.78 11.56 |
| 5 125 | 40S | 5.563 141.3 | 0.258 6.55 | 14.63 21.77 |
| 5 125 | 80S | 5.563 141.3 | 0.375 9.53 | 20.80 30.97 |
| 6 150 | 5S | 6.625 168.3 | 0.109 2.77 | 7.59 11.31 |
| 6 150 | 10S | 6.625 168.3 | 0.134 3.40 | 9.30 13.83 |
| 6 150 | 40S | 6.625 168.3 | 0.280 7.11 | 18.99 28.26 |
| 6 150 | 80S | 6.625 168.3 | 0.432 10.97 | 28.60 42.56 |
Yes, custom sizes are available for Alloy Steel WP11 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@devangfittings.co.in.
WP11 Buttweld Fittings are alloy steel, widely applied in heat and pressure-resistant components-demanding industries. In the power generation plants, WP11 fittings serve majorly in steam pipelines, boilers, and heat exchangers, where consistent functionality at elevated temperatures is crucial. WP11 fittings in petrochemical and chemical processing units service high-temperature and high-pressure fluids with high corrosion resistance. The oil and gas industry, such as refineries and offshore platforms, uses these fittings for their excellent durability and resistance to oxidation and thermal stress. Their competence in harsh environments makes them a must-have for safe, efficient, and durable piping systems.
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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