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Home > Steel Pipe> ASTM A335 P9 Alloy Steel Seamless Pipes
ASTM A335 P9 Alloy Steel Seamless Pipes image
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ASTM A335 P9 Alloy Steel Seamless Pipes

Standard and Grades: ASTM A335 / ASME SA335 Grade P9

Material types: Chrome Moly Alloy

Manufacturing types: Seamless hot rolled

Length: 6 meters, 12 meters or customized.

Surface treatment: Polished, Varnished, 3LPE, FBE

Ends: PE (Plain End), BE (Beveled Ends)

ASTM A335 P9 Pipe ASTM A335 Grade P9 Alloy Steel Seamless Pipe ASTM A335 P9 Chrome Moly Pipe ASTM A335 P9 Alloy Steel Seamless Pipes ASTM A335 Grade P9 Alloy Steel Seamless Pipe

ASTM A335 P9 Alloy Steel Seamless Pipes Manufacturer

ASTM A335 P9 is part of ASTM A335, The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness requirements.

ASTM A335 Pipe (ASME S/A335, Chrome-Moly) is a seamless ferritic alloy-steel pipe for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Sometimes referred to as “P Grade”, chome moly pipe is popular in P-Grades P5, P9, P11, P22, and P91. The most common use of grades P11, P22, and P91 is in the power industry and petro-chemical plants, Grades P5 and P9 are commonly used in refineries.

ASTM A335 P9 Pipe Equivalent Materials

Standard/Type Equivalent Grade
ASME Pipe Standard SA335 P9
Fittings (Forging Grade) ASTM A182 F9
Fittings (Wrought Grade) ASTM A234 WP9
Plate Equivalent ASTM A387 Grade 9
JIS (Japanese Standard) STPA 26
BS (British Standard) 3604 P1 629-470 (historical reference)
DIN / EN (European Equivalent) X11CrMo9-1 or X12CrMo9-1 (e.g., EN 10216-2)

ASTM A335 P9 Alloy Steel Seamless Pipe Specifications

Amardeep Steel supplies ASTM A335 P9 Pipes conforming to rigorous international standards and precise customer requirements. Understanding the A335 P9 Chemical Composition and A335 P9 Material Composition is key to its performance.

Specification Attribute Details for ASTM A335 P9 Pipes
Primary Standard ASTM A335 / ASME SA335
Grade P9
UNS Designation S50400
Manufacturing Process Seamless (Hot Finished or Cold Drawn)
Outer Diameter (OD) NPS 1/2” to NPS 24” (21.3mm to 610mm) and larger as per custom requirements.
Wall Thickness (WT) Schedule 40, STD, Schedule 80, XS, Schedule 160, XXS, and custom wall thicknesses.
Length Single Random (SRL), Double Random (DRL), 20 ft (6m), 40 ft (12m), or Custom Cut Lengths.
End Connections Plain End (PE), Bevelled End (BE) as per ASME B16.25. Threaded ends available on request.
Surface Treatment Bare, Black Varnished, Oiled, Galvanized, 3LPE/FBE coating (on request).
Heat Treatment Typically supplied in Full or Isothermal Annealed condition, or Normalized and Tempered. Tempering usually at or above 675°C (1250°F).
Testing & Certification Hydrostatic Testing, NDE (UT, MPI, LPI as per requirement), Mechanical Tests, Chemical Analysis. Mill Test Certificate (MTC) to EN 10204 3.1.
Specification Parameters
Basic Information

A335 P9 Chemical Composition (Typical wt%)

The A335 P9 Material Composition is characterized by the following key elements:

Element Content (wt %)
Carbon (C) 0.15 max
Manganese (Mn) 0.30 – 0.60
Phosphorus (P) 0.025 max
Sulfur (S) 0.025 max
Silicon (Si) 0.25 – 1.00
Chromium (Cr) 8.00 – 10.00
Molybdenum (Mo) 0.90 – 1.10

Mechanical Properties of ASTM A335 P9 Pipes

Property Value
Tensile Strength 60,000 psi (415 MPa) minimum
Yield Strength (0.2% offset) 30,000 psi (205 MPa) minimum
Elongation in 2″ (50mm) 30% minimum (longitudinal)
Hardness Max 250 HBW / 265 HV / 25 HRC

 

Service Support
ASTM A335 P9 Alloy Steel Seamless Pipes

Why Choose US for Your ASTM A335 P9 Pipes?

  • Quality Assurance: Our ISO 9001-certified processes ensure every A335 P9 Alloy Steel Pipe meets international standards, supplied with full MTC.
  • Comprehensive Inventory: We maintain a significant stock of ASTM A335 P9 Alloy Steel Seamless Pipes in various sizes and schedules for quick delivery.
  • Competitive Pricing: We offer an excellent price for high-quality ASTM A335 P9 pipe, ensuring value for your projects.
  • Global Export Capabilities: Efficient logistics and experience in exporting P9 seamless pipe worldwide.
  • Customization & Technical Support: We provide cut-to-length services and expert technical assistance for your specific requirements.
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