ASTM A335 P5 Pipes

ASTM A335 P5 seamless alloy steel pipes are specifically designed for high-temperature and high-pressure service in industries such as power generation, petrochemical processing, refinery piping, and oil & gas applications. Manufactured using a chromium-molybdenum (Cr-Mo) alloy, P5 pipes offer enhanced strength, improved oxidation resistance, and superior performance under elevated temperatures and mechanical stresses.

The 5% chromium content in P5 pipes improves hardness, resistance to wear, and corrosion resistance against hot gases, steam, and petrochemical by-products. These pipes are suitable for applications where continuous operation at temperatures up to 600°C is required, making them ideal for superheater tubes, steam piping, and headers in boilers and heat exchangers.

At Middle East Piping, we supply a complete range of ASTM A335 P5 seamless pipes manufactured in compliance with ASME SA335 and ASTM A335 standards. Sizes are available from ½” NB to 24” NB, with wall thicknesses ranging from SCH 20 to SCH XXS and custom heavy-wall options available. All pipes are produced through hot finishing or cold drawing processes, and are delivered with full EN 10204 3.1 / 3.2 certification, along with optional third-party inspection (TPI) approvals from agencies like BV, TUV, Lloyds, or DNV if required. click here for fittings

Each pipe undergoes mandatory mechanical testing, including tensile tests, flattening tests, and hydrostatic testing to ensure compliance with high-temperature service standards. Whether your project demands seamless alloy pipes for high-pressure steam lines, refinery heat exchanger systems, or heavy industrial processing units, ASTM A335 P5 pipes offer a reliable and technically robust solution. We ensure prompt supply across Saudi Arabia, UAE, Qatar, Oman, and Bahrain. click here for valves