ASTM A335 P92 seamless pipes, vital for high-temperature, high-pressure applications, offer superior strength due to their weld-free construction. Meeting ASME B36.10 dimensional standards, these 9Cr-2W alloy pipes boast exceptional creep resistance (25.7 ksi allowable stress at -20-100°F). With 620 MPa tensile and 440 MPa yield strength, they undergo rigorous testing, including hydrostatic and non-destructive examination, ensuring compliance for critical boiler and power plant use. Key benefits include high strength, hardness, durability, hardenability, and excellent resistance to wear and erosion. The low carbon content also protects against sensitization during welding.
Alloy Steel P92 welded pipes, a cost-effective alternative, adhere to ASTM A335 P92 and ASME B36.10 standards. While offering good creep resistance, their welded seams require careful inspection. Heat treatment and non-destructive testing are crucial for quality control, making them suitable for less critical, high-temperature applications. However, they are not suitable for chloride solutions or sulphuric acid environments.
C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
0.07 - 0.13 | 0.30-0.60 | 0.020 max | 0.010 max | 0.50 max | 8.50 - 9.50 | 0.30 - 0.60 |
Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
585 min | 415 min | 20 min |
ASTM | ASME | Equivalent material | Equivalent material | JIS G 3458 | UNS | BS | DIN | ISO | ABS | NK | LRS |
A335 P92 | SA335 P92 | T92 | K92460 |
Food Processing Industry |
Fabrication Industry |
Oil and Gas Industry |
Chemical Industry |
Plumbing |
General Purpose Applications |
Heating |
Water Supply Systems |
Power Plant |
Paper & Pulp Industry |
ASTM A335 Grade P92 is an alloy steel pipe, commonly known as "chrome-moly" pipe, due to its composition, which includes carbon steel combined with chromium, molybdenum, and sometimes vanadium. ASME specification alloy steel pipes are used for high temperature service applications.
P92 (9Cr-2W) has a specific chemical composition with high chromium and molybdenum content, giving it superior creep resistance and long-term stability at elevated temperatures.
Alloy Steel P92 is designed to withstand high temperatures, with a typical operating range of up to 650°C (1200°F). It is suitable for applications involving extreme thermal stress and elevated pressures.
P92 is an enhanced version of P91, a 9% chromium-molybdenum (Cr-Mo) alloy steel. It offers superior creep resistance and high-temperature strength compared to P91, thanks to the addition of tungsten, vanadium, and niobium. Additionally, P92 features a slightly reduced molybdenum content and precise control of boron and nitrogen levels, further improving its performance.
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