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High-quality piping solutions for environments with high temperatures and pressures are provided by Liam Pipes and Tubes, a reputable manufacturer and supplier of Alloy Steel P12 Pipes in Houston, USA. Alloy Steel P12 is a chromium-molybdenum alloy that is manufactured in accordance with ASTM A335 standards and is renowned for its exceptional mechanical qualities, resistance to oxidation, and longevity in thermal applications. Our P12 pipes are extensively utilised in the petrochemical, refinery, and power generation industries where long-term strength and creep resistance are crucial. Our extensive selection of sizes, schedules, and customised specifications guarantees quality, dependability, and timely delivery for vital industrial applications.
Carbon (0.05–0.15%), manganese (0.30–0.61%), chromium (0.80–1.25%), molybdenum (0.44–0.65%), and silicon (max 0.50%) make up Alloy Steel P12 Pipes, which also have a regulated phosphorus and sulphur content. Thermal stability, oxidation resistance, and creep resistance are all improved by this composition. P12 pipes normally have a minimum yield strength of 205 MPa and a tensile strength between 415 and 585 MPa. They work well in welded and pressure-bound systems due to their exceptional ductility and high-temperature performance, offering strength and durability in settings subjected to mechanical stress and thermal cycling.
| Size Range | 1/8″ –42” |
| Schedules | 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier |
| Standard | ASTM A335, ASTM A213 |
| Grade |
ASTM A335 P1, P2, P5, P9, P11, P12, P22, P23, P91, P92, ASTM A213 T2, T5, T5b, T5c, T9, T11, T12, T22, T23, T91, T92 |
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
| 0.015 max | 0.30-0.61 | 0.025 max | 0.025 max | 0.50 max | 0.80-1.25 | 0.44-0.65 |
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Alloy Steel P12 pipes from Liam Pipes and Tubes ensures superior quality and reliability for your industrial needs. As a leading manufacturer and supplier in Houston , USA, Liam offers pipes that meet stringent industry standards, ensuring optimal performance and longevity. Our Alloy Steel P12 pipes are crafted from high-grade materials, providing excellent resistance to oxidation and creep at high temperatures. With a commitment to customer satisfaction, we offer tailored solutions, timely delivery, and competitive pricing, making Liam your trusted partner for high-quality alloy steel piping solutions.
Liam Pipes and Tubes, one of the largest suppliers of Alloy Steel P12 Pipes in Houston , USA, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Alloy Steel P12 Pipes to meet your specific requirements. Our team at Liam Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@liampipes.us.
Heat exchangers in thermal and nuclear power plants, steam lines, superheaters, reheaters, and other high-temperature and high-pressure service applications all make extensive use of alloy steel P12 pipes. Additionally, they are used for pressure vessels and boiler components in petrochemical plants, chemical processing facilities, and refineries. In settings where oxidation and thermal fatigue are common, P12 pipes provide dependable performance, lowering maintenance expenses and downtime. They are perfect for critical systems needing reliable performance, weldability, and corrosion resistance over long operating times because of their capacity to maintain mechanical qualities at high temperatures.







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