ASTM A335 P22 Alloy Steel Pipe supplier, ASTM A335 P22 seamless pipe

ASTM A335 P22 Pipe Price, Alloy Steel ASTM A335 P22 Pipe supplier

ASME SA335 P22 Material Stockist, ASTM A335 P22 chrome moly pipe Dealer

What is ASTM A335 P22 Alloy Steel Pipe?

The ASTM A335 P22 pipe specification covers "Chrome-Moly" seamless alloy steel pipes and tubes, available in grades ranging from P-1 to P-91. Fastwell offers high-quality P22 pipes and tubes with finishes such as black painting, anti-corrosion oil, and galvanized coatings based on customer requirements. Known for its tensile strength, corrosion resistance, and high-temperature performance, this alloy is cost-effective and widely used in power generation, refineries, and petrochemical applications.

The most common uses of grade P22 pipes are in the power industry and petrochemical plants. These pipes are ideal for bending, flanging, and similar forming operations, as well as for fusion welding. Chromium, a key component of stainless steel, significantly enhances oxidation resistance at high temperatures and improves tensile strength, yield, and hardness at room temperature. This makes A335 alloy steel pipes perfect for transporting fluids and gas at high temperatures and pressures in power plants, refineries, petrochemical plants, and oil field services.

ASTM A335 P22 (UNS K11522) is part of the Chrome-Moly alloy steel family, suitable for bending, flanging, forming operations, and fusion welding. The chemical composition of this material includes are :

  • Carbon: 0.05-0.15%
  • Manganese: 0.30-0.60%
  • Phosphorus: Max 0.025%
  • Sulfur: Max 0.025%
  • Silicon: 0.50-1.0%
  • Chromium: 1.90-2.60%
  • Molybdenum: 0.87-1.13%

These elements contribute to the alloy's strength, durability, and resistance to high temperatures, making it a reliable choice for demanding industrial applications.

ASTM A335 P22 Alloy Steel Pipe Specification



1/8NB TO 24NB IN



ASTM A 335, ASME SA 335




Specialized in


Large Diameter Size

Outer Dimensions


19.05mm – 114.3mm

Wall Thickness


2.0mm – 14 mm



max 16000 mm



Schedule 20 - Schedule XXS (heavier on request) up to 250 mm thickness.



Round, Square, Rectangular, Hydraulic Etc.



Single Random, Double Random & Cut Length.

Tubing End


Plain End, Beveled End, Treaded.

ASTM A335 P22 Alloy Steel Pipe Chemical Composition



Chromium (Cr)


Molybdenum (Mo)


Carbon (C)


Manganese (Mn)


Silicon (Si)

0.50% max


  • P22 material equivalent in industries requiring high durability and strength.
  • Perfect for boilers, superheaters, and heat exchangers due to its superior mechanical properties.

ASTM A335 P22 Alloy Steel Pipe is a critical material in various industrial sectors, offering unmatched reliability and performance. For detailed information, including the P22 pipe schedule chart or alloy steel P22 chemical composition, please contact us.

About ASTM A335 P22 Alloy Steel Pipe

Trade Name: 2 ¼ Chrome

Grade: P22

UNS #: K21590

Pipe: A335/SA335

Forged/Bored Pipe: A369/SA369

P22 Alloy Steel Pipe is a type of seamless alloy steel pipe. It is made from chromium-molybdenum alloy steel, which gives it excellent strength and corrosion resistance.

These pipes are commonly used in high-temperature and high-pressure applications, such as in power plants and petrochemical industries, due to their durability and reliability.

Phosphorus Sulfur Chromium Carbon Silicon Manganese Molybdenum
0.025 max 0.025 max 1.90-2.60 0.015 max 0.50 max 0.30-0.61 0.87-1.13

ASTM A335 P22 Alloy Steel Pipe Mechanical Properties

Mechanical Properties

Grade Tensile strength(MPa) Yield strength(MPa) Elongation(%) Impact energy(J) Hardness
P11 ≥ 415 ≥ 205 ≥ 22 ≥ 35 ≤ 163HB
P12 ≥ 415 ≥ 220 ≥ 22 ≥ 35 ≤ 163HB
P22 ≥ 415 ≥ 205 ≥ 22 ≥ 35 ≤ 163HB
P5 ≥ 415 ≥ 205 ≥ 22 ≥ 35 ≤ 187HB
P91 585~760 ≥ 415 ≥ 20 ≥ 35 ≤ 250HB
P92 ≥ 620 ≥ 440 ≥ 20 ≥ 35 250HB

ASTM A335 P22 Alloy Steel Pipe Tensile Requirements

    P-5 P-9 P-11 P-22 P-91
Tensile Strength, min., psi          
  ksi 60 60 60 60 85
  MPa 415 415 415 415 585
Yield Strength, min., psi          
  ksi 30 30 30 30 60
  MPa 205 205 205 205 415

ASTM A335 P22 Alloy Steel Pipe Equivalents Grades

Equivalent material UNS BS ISO ASTM ASME JIS G 3458 DIN NK ABS LRS
T22, 10CrMo910, 10CrMo9-10, 1.7380, 11CrMo9-10, 1.7383 K21590 3604 P1 622 2604 II TS34 A335 P22 SA335 P22 STPA 24 17175
KSTPA 24 ABS 13 Sec 2

ASTM A335 P22 Pipe Applications

P22 pipes find applications in a diverse range of industries, particularly in high-temperature environments. Some notable industries where P22 pipes are commonly utilized include:

  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
  • Off-shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals

Due to its excellent heat resistance and corrosion properties, P22 pipes play a crucial role in facilitating efficient operations across these industries, ensuring reliability and longevity even in demanding environments.

Supply and Exporter of ASTM A335 P22 Alloy Steel Pipe

Taiwan, Mexico, Iran, Namibia, Afghanistan, Netherlands, Nepal, Ireland, Libya, Morocco, Iran, Switzerland, Finland, Slovakia, Pakistan, Australia, Serbia, Angola, China, Philippines, Czech Republic, Belgium, Estonia, Costa Rica, Croatia, Sweden, Venezuela, Colombia, India, Belarus, Jordan, Azerbaijan, Mongolia, Vietnam, Ghana, Iraq, Algeria, Puerto Rico, New Zealand, Singapore, Indonesia, Ukraine, Israel, Mexico, Hong Kong, Bhutan, Germany, Brazil, Plan, Yemen, Malasiya, USA, Cambodia, Laos, Uganda, Tanzania, Sudan, Democratic Republic of Congo, zambia, Ethiopia, Brunei, Madagascar, Niger, Mali, Bangladesh, Bolivia, United States, Ecuador, Lebanon, Italy, South Korea, Denmark, Norway, Sri Lanka, Zimbabwe, Japan, Yemen, Oman, Portugal, Lithuania, Canada, Macau, Bahrain, Austria, Bulgaria, Spain, Kenya, United Kingdom, United Arab Emirates, Kazakhstan, Egypt, Saudi Arabia, Gambia, Argentina, Romania, Tibet, France, Chile, Gabon, South Africa, Trinidad & Tobago,Tunisia, Turkey, Nigeria, Peru, Russia, Chile, Nigeria, Hungary, Qatar, Greece, Malaysia, Kuwait, Poland, Thailand, Poland,Germany, Belgium, Italy, Turkey, Denmark and UK


What is ASTM A335 P22 material?

ASTM A335 P22 is a specification for seamless alloy steel pipe used in high-temperature applications. It is made from chromium-molybdenum alloy steel, providing excellent strength and corrosion resistance. These pipes are commonly used in industries such as power generation and petrochemicals for high-temperature and high-pressure applications.

What is ASTM A335 material?

ASTM A335 is a specification for seamless ferritic alloy steel pipe designed for high-temperature service. It covers nominal wall and minimum wall thickness pipe, and is intended for use in high-temperature environments such as power plants and petrochemical plants. The material is made from various grades of alloy steel, including P1, P5, P9, P11, P22, and P91.

What is a chrome moly pipe?

Chrome moly pipe, short for chromium-molybdenum pipe, is an alloy steel pipe containing chromium and molybdenum as alloying elements. It offers increased strength, hardness, and corrosion resistance, making it ideal for high-temperature applications.