A335 P11 Seamless Pipe

Product NameA335 P11 Seamless Pipe
MaterialAlloy Steel
SpecificationsASTM A335 / ASME SA335
Size Range1/2" NB to 24" NB
Wall ThicknessSCH 40, SCH 80, SCH 160, SCH XXS
LengthSingle Random, Double Random, or Custom Length
CertificationISO 9001, API 5L, CE
Categories: ,


Product Description

A335 P11 Seamless Pipe is a premium grade alloy steel pipe designed to meet the stringent requirements of ASTM A335. Renowned for its excellent mechanical properties and high-temperature resistance, the A335 P11 Seamless Pipe is a reliable choice for various industrial applications.


  • Power Generation
  • Petrochemical Industry
  • Chemical Industry
  • Industrial Boilers
  • Heat Exchangers

Chemical Composition A335 P11 Seamless Pipe

ElementComposition (%)
Carbon (C)0.05 - 0.15
Manganese (Mn)0.30 - 0.60
Silicon (Si)0.50 - 1.00
Phosphorus (P)0.025 max
Sulfur (S)0.025 max
Chromium (Cr)1.00 - 1.50
Molybdenum (Mo)0.44 - 0.65

Mechanical Properties A335 P11 Seamless Pipe

Tensile Strength415 MPa (60,200 psi) min
Yield Strength205 MPa (29,700 psi) min
Elongation30% min
Hardness (Brinell)163 HB max
Hardness (Rockwell B)85 HRB max
Impact Energy (Charpy V-Notch)27 J (20 ft-lbf) min at -20°C (-4°F)


A335 P11 Seamless Pipes are reliable and durable, ideal for high-temperature environments such as boilers and heat exchangers. They meet stringent ASTM standards, ensuring exceptional performance and longevity.


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