ASME SA335 P2 Chrome Moly Pipe Manufacturer and Supplier in USA
ASTM A335 P2 is a low-carbon chromium-molybdenum alloy steel. ASTM A335 P2 Chrome Moly Pipe has a very specific chemical composition comprising about 0.44 per cent of molybdenum and a measured amount of chromium with a low level of carbon of about 0.015 per cent. This low carbon content is a key benefit as it enables the material to be readily welded, often without filler metals or preheating. The alloy provides strength equal to grades of austenitic stainless steel 304 and 316 with a minimum yield strength of 205 Mpa and minimum tensile strength of 415 Mpa. There is also a small percentage of manganese, phosphorus, sulfur and silicon in the composition.
A335 Gr P2 Pipe is available in nominal bore sizes from 1/8 NB to 24 NB, with wall thicknesses typically between 3 mm and 12 mm. ASTM A335 P2 Pipes are produced in a very large spectrum of pressure carrying capacity in schedules between Sch 20 and XXS. The material is a ferritic alloy that can be refined by heat treatments (full or isothermal annealing). A335 P2 Alloy Steel Pipe comes in round, square, rectangular and hydraulic tubes. Cold drawing or cold rolling are part of the manufacturing process and finished products are delivered in single random, double random or cut-to-length sizes. The ends of the pipes come in the form of beveled, plain or threaded.
The ASTM A335 P2 Alloy Steel Seamless Pipes are produced using high-quality steel and modern manufacturing technology, typically featuring a protective chrome coating to ensure corrosion resistance and long-term durability. The ASTM A335 P2 Seamless Pipe, also known as SA335 P2 Chrome Moly Pipe, is highly sought after for high-temperature service applications including petroleum industrial pipelines, heat exchangers, oil and gas transmission systems, and steam service in power plants. USA Piping Solution offers a wide range of ASTM A335 Grade P2 Pipes along with ASTM A335 P2 Welded Pipe options. All products are manufactured in compliance with international quality standards and are available at competitive prices for petrochemical, engineering, chemical, and oil and gas industries.
Table of Contents
- ASTM A335 P2 Pipes Specifications
- Chemical Composition of ASTM A335 P2 Chrome Moly Pipe
- Mechanical Properties of ASTM A335 Grade P2 Pipes
- Equivalent Grades of ASTM A335 P2 Seamless Pipe
- Dimensional Tolerances of A335 Gr P2 Pipe
- Wall Thickness Tolerances of SA335 P2 Chrome Moly Pipe
- ASTM A335 P2 Pipes Heat Treatment
- Applications of A335 P2 Alloy Steel Pipe
- Related Products
ASTM A335 P2 Pipes Specifications
The ASTM A335 P2 Pipes are manufactured and inspected to meet or exceed international standards. We deliver an extensive range of these ASTM A335 P2 Alloy Steel Seamless Pipes in the specifications shown below.
Chemical Composition of ASTM A335 P2 Chrome Moly Pipe
The table below details the specific element percentages across all ASTM A335 grades, making the ASTM A335 P2 Chrome Moly Pipe suitable for high-temperature and high-pressure service.
Mechanical Properties of ASTM A335 Grade P2 Pipes
These minimum mechanical values confirm the required strength and ductility of the ASTM A335 Grade P2 Pipes for reliable operation under high operational stresses.
Equivalent Grades of ASTM A335 P2 Seamless Pipe
The table below provides cross-references to corresponding international material designations for the ASTM A335 P2 Seamless Pipe.
Dimensional Tolerances of A335 Gr P2 Pipe
The dimensional tolerances for our A335 Gr P2 Pipe are strictly controlled to ensure a precise fit in complex piping systems, as required by the ASTM A335 standard.
Wall Thickness Tolerances of SA335 P2 Chrome Moly Pipe
The wall thickness of the SA335 P2 Chrome Moly Pipe must meet strict tolerances to maintain the pipe's pressure rating and structural integrity.
ASTM A335 P2 Pipes Heat Treatment
The ASTM A335 P2 pipe undergoes heat treatment to achieve the specified mechanical properties and microstructure required for high-temperature service.
Applications of A335 P2 Alloy Steel Pipes
A335 P2 Alloy Steel Pipes play a critical role in demanding high-temperature and high-pressure service conditions. Typical applications for ASTM A335 P2 Chrome Moly Pipe include:
- Petroleum and refinery pipelines where thermal resistance and pressure integrity are essential
- Heat exchangers in power plants and chemical processing facilities
- Oil and gas transmission systems operating at elevated temperatures
- Steam service piping in power generation plants requiring long-term reliability
- Boiler systems where the combination of high pressure and corrosive fluids demands robust alloy materials
- Petrochemical and engineering applications requiring a balance of strength, weldability, and corrosion resistance
Related Products
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Frequently Asked Questions About ASTM A335 P2 Pipes
What is P2 material?
The P2 grade is a low-alloy, medium-carbon steel primarily used for mechanical and high-temperature pipe applications. The addition of chromium and molybdenum defines the ASTM A335 P2 Pipe alloy, providing moderate hardness and strength with a good balance of machinability and reliable mechanical properties for high-temperature service. Its general hardness is usually less than 250 HB.
What is the main difference between ASTM A335 P2 and ASTM A335 P1?
The primary difference lies in their chemical makeup. ASTM A335 P2 has a slightly higher alloy content than P1, specifically with elevated percentages of Chromium (0.50 to 0.81%) and Molybdenum (0.44 to 0.65%). This modest increase in alloying elements provides P2 with better performance at high temperatures, making it a more suitable choice for demanding operational conditions.
Is ASTM A335 P2 pipe suitable for high-pressure systems?
Yes. ASTM A335 P2 pipes are manufactured as seamless material. The seamless construction eliminates the risk associated with welded seams, ensuring uniform wall thickness throughout the entire pipe structure. This consistent quality provides high structural reliability for transporting fluids at high pressures and temperatures in critical systems such as power plants, heat exchangers, and refineries.