Rahil Metal

Manufacturing Process:

• Produced as seamless pipes, ensuring uniform wall thickness and eliminating the risks associated with welded seams.
• Manufactured in accordance with ASTM standards, specifically ASTM A333, to ensure high quality and reliability.

ASTM A335 P91 pipe is a high-performance alloy steel pipe primarily used in high-temperature and high-pressure applications, particularly in the power generation and petrochemical industries.

Mechanical Properties:

• Tensile Strength: Typically ranges from 60,000 psi (414 MPa) to 80,000 psi (552 MPa).
• Yield Strength: Minimum yield strength is approximately 35,000 psi (241 MPa).
• Elongation: Good ductility, usually around 20% in 8 inches, allowing for flexibility under stress.

Temperature Resistance:

• Designed for use in low-temperature environments, with service temperatures often as low as -50°F (-45°C) or even lower.
• The material properties are specifically tailored to maintain toughness and prevent brittleness in cold conditions.

Key Features:

1. Material Composition:

   • P91 is made from a chromium-molybdenum alloy steel.
   • Typical composition includes:
     • Chromium (Cr): 8.0% - 9.5%
     • Molybdenum (Mo): 1.8% - 2.5%
     • Carbon (C): Up to 0.12%
     • Other elements may include vanadium, silicon, and manganese.

2. Mechanical Properties:

   • Excellent tensile and yield strength, making it suitable for high-stress environments.
   • Good toughness and ductility, especially at elevated temperatures, allowing it to perform well under thermal cycling.

3. Temperature and Pressure Resistance:

   • Designed to operate effectively at temperatures up to about 600°C (1112°F) or higher, depending on the application.
   • Suitable for high-pressure applications, often used in supercritical and ultra-supercritical steam systems.

Alloy Steel Seamless Pipe ASTM A335 P91 is a high-performance pipe designed for use in high-temperature and high-pressure applications, particularly in the power generation and petrochemical industries. Here’s a detailed overview of its key features:

1. Material Composition:

   • P91 is primarily composed of chromium-molybdenum alloy steel.
   • Typical chemical composition includes:
     • Chromium (Cr): 8.0% - 9.5%
     • Molybdenum (Mo): 1.8% - 2.5%
     • Carbon (C): Up to 0.12%
     • Vanadium (V): 0.2% - 0.5%
     • Other elements like silicon and manganese may also be present in controlled amounts.

2. Mechanical Properties:

   • High tensile strength and yield strength, suitable for high-stress environments.
   • Excellent toughness and ductility, especially at elevated temperatures, which helps in thermal cycling resistance.