Alloy Steel Pipes are one of the most reliable and high-performance materials used in various industries where superior strength, durability, and resistance to extreme conditions are required. These pipes are manufactured by adding different alloying elements such as chromium, molybdenum, nickel, vanadium, and manganese to carbon steel, which significantly improves their mechanical and chemical properties. At Neonox Overseas, we supply and export a wide range of Alloy Steel Pipes that comply with international standards such as ASTM, ASME, DIN, and EN, making them suitable for critical engineering applications.
One of the main advantages of Alloy Steel Pipes is their exceptional ability to withstand high pressure and high temperature. This makes them an ideal choice for industries like power generation, petrochemicals, oil and gas, refineries, chemical plants, nuclear plants, and marine engineering. The addition of chromium enhances oxidation and corrosion resistance, while molybdenum increases strength and creep resistance at elevated temperatures. Nickel contributes to toughness, and vanadium improves wear resistance, making alloy steel pipes versatile for demanding environments.
We offer Alloy Steel Pipes in various types including Seamless Pipes, Welded Pipes, ERW Pipes, and Fabricated Pipes to meet diverse application needs. Seamless alloy steel pipes are manufactured through extrusion and offer excellent dimensional accuracy with high strength, which is why they are used in boilers, heat exchangers, and superheaters. Welded and ERW alloy steel pipes are cost-effective solutions for applications where extreme pressure handling is not required but corrosion resistance and durability are still essential. Fabricated alloy steel pipes are customized to client requirements for special projects.
Our Alloy Steel Pipes are available in different grades such as ASTM A335 P1, P5, P9, P11, P22, P91, P92, and more. Each grade is suitable for different temperature and pressure ranges. For example, ASTM A335 P11 and P22 are widely used in power plants due to their ability to withstand high temperature service. ASTM A335 P91 and P92 are high-strength ferritic alloy steels known for their excellent creep strength, making them suitable for ultra-supercritical boilers.
At Neonox Overseas, we ensure strict quality control and third-party inspection to provide defect-free products. Our pipes are supplied in a wide range of outer diameters (6 mm to 600 mm), wall thicknesses (0.5 mm to 100 mm), and lengths (up to 12 meters or custom cut lengths). We also provide surface finishes like polished, pickled, or coated, depending on client requirements.
With our global supply network, we have established a strong presence in industries across Asia, Europe, the Middle East, and Africa. Whether it is for high-pressure steam pipelines, chemical processing, or offshore drilling, our Alloy Steel Pipes deliver consistent performance and long service life. Choosing Neonox Overseas ensures you receive alloy steel pipes that are not only reliable but also meet the highest international standards of safety and performance.
| Grade | Standard | Types Available | Applications |
|---|---|---|---|
| ASTM A335 P1 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | Low temperature service, boiler tubes |
| ASTM A335 P5 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | Petrochemical, power plants |
| ASTM A335 P9 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | High temperature service, refineries |
| ASTM A335 P11 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | Steam pipelines, superheaters |
| ASTM A335 P22 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | Power plants, heat exchangers |
| ASTM A335 P91 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | High-pressure boilers, refinery equipment |
| ASTM A335 P92 | ASTM A335 / ASME SA335 | Seamless, Welded, ERW, Fabricated | Ultra-supercritical boilers, power generation |
| Other Alloy Steel Grades | ASTM / ASME / DIN / EN | Seamless, Welded, ERW, Fabricated | Chemical, oil & gas, marine, nuclear |
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