American standard alloy pipe A335 P5

American Standard Alloy Pipe – ASTM A335 P5

Product Overview:
The ASTM A335 P5 alloy steel pipe is a seamless ferritic alloy pipe specifically designed for high-temperature and high-pressure service applications. With a composition of 5% chromium and 0.5% molybdenum, it offers excellent strength, thermal stability, and oxidation resistance, making it suitable for use in power generation, refineries, petrochemical plants, and boiler systems.

Key Features:

• Standard: ASTM A335 / ASME SA335

• Steel Grade: P5 (5Cr-0.5Mo)

• Pipe Type: Seamless alloy steel pipe

• OD Range: 1/2" to 36" (21.3 mm – 914 mm)

• Wall Thickness: SCH10 to SCH160, XXS or custom

• Length: 5.8m / 6m / 11.8m / 12m or custom cut-to-length

• Heat Treatment: Normalized and tempered (N+T)

Chemical Composition (Typical):

• C: 0.15 max

• Cr: 4.00–6.00%

• Mo: 0.45–0.65%

• Mn: 0.30–0.60%

• Si: 0.50 max

• Fe: Balance

Mechanical Properties:

• Tensile Strength (min): 415 MPa

• Yield Strength (min): 205 MPa

• Elongation: ≥30%

• Hardness: ≤163 HB (max)

• Operating Temperature: Up to 600°C (1112°F)

Advantages:

• Excellent resistance to oxidation and thermal fatigue

• Good weldability and formability

• Long-term performance under cyclic thermal and pressure conditions

• Suitable for corrosive and high-temperature environments

• Durable and cost-effective for industrial piping systems

Applications:

• Steam and superheater pipes in thermal power plants

• High-temperature refinery piping systems

• Heat exchanger and re-heater tubes

• Petrochemical and gas processing units

• Boiler tubes, headers, and pressure vessels

Available Services:

• Full NDT (UT/RT), hydrostatic, and hardness testing

• Beveled, plain, or threaded ends

• 3PE/FBE coating or pickled surface (on request)

• Third-party inspections (SGS, BV, TUV)

• Custom labeling, export packaging, and certificates (EN10204 3.1/3.2)