A335 P1 Seamless Pipe

Product NameA335 P1 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
CertificatesISO 9001, API 5L, CE

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Product Description

A335 P1 Seamless Pipe is a premium alloy steel pipe designed for high-temperature service applications. Manufactured in compliance with ASTM A335 and ASME SA335 specifications, these seamless pipes are ideal for use in boilers, heat exchangers, superheaters, and pressure vessels.


  • High-temperature services
  • Boilers
  • Heat exchangers
  • Superheaters
  • Pressure vessels

Chemical Composition A335 P1 Seamless Pipe

ElementComposition (%)
Carbon (C)0.10 max
Manganese (Mn)0.30 - 0.60
Silicon (Si)0.10 - 0.50
Phosphorus (P)0.025 max
Sulfur (S)0.025 max
Chromium (Cr)0.50 - 0.65
Molybdenum (Mo)0.44 - 0.65

Mechanical Properties A335 P1 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)


Emirerri Steel is committed to providing high-quality, dependable products with a consistent supply chain to meet the growing demands of our customers. For more information or to place an order, please contact us. We look forward to serving your high-temperature piping needs with our superior A335 P1 Seamless Pipes.


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