ASTM A335 P22 Seamless Steel Pipe is a standard specification for alloy steel pipes, where “P22” denotes the specific grade of the pipe. This type of piping is engineered for transporting fluids under high-temperature and high-pressure conditions, typically utilized across industries such as petroleum, chemical, power generation, and nuclear.
Key Features:
- High Strength: Alloy steel pipes of grade P22 exhibit outstanding tensile and yield strength, ensuring stability in extreme environments.
- Corrosion Resistance: The presence of chromium and molybdenum in the alloy composition provides excellent corrosion resistance, allowing prolonged resistance to corrosion.
- Versatility: P22 pipes find applications in various industrial sectors including boilers, furnaces, petroleum pipelines, and nuclear power stations.
Chemical Composition:
- Chromium Content: 1.90-2.60%
- Molybdenum Content: 0.87-1.13%
- Carbon Content: 0.05-0.15%
- Manganese Content: 0.30-0.60%
- Silicon Content: 0.50-0.80%
Mechanical Properties:
- Yield Strength: ≥ 415 MPa
- Tensile Strength: ≥ 585 MPa
- Elongation: ≥ 20%
Dimensions and Wall Thickness:
- Outside Diameter Range: 1/2″ – 36″ (21.3 mm – 914 mm)
- Wall Thickness Range: SCH 20 – SCH XXS (2.11 mm – 250 mm)
ASTM A335 P22 Seamless Steel Pipe is a high-performance piping material, renowned for its exceptional high-temperature, corrosion-resistant, and pressure-resistant properties, suitable for a myriad of demanding industrial environments.