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ASTM A335 / ASME SA335 P22 Alloy Steel Seamless Pipe 2.25Cr-1Mo Steel Pipe
ASTM A335 P22 is a type of alloy steel pipe that is designed for high-temperature and high-pressure applications. It is made from a combination of chromium, molybdenum, and other elements, which gives it excellent corrosion resistance and high-temperature strength. Here are some key features and properties of A335 P22 pipes:
ASTM A335 P22 Pipe Specification
| Standard | ASTM A335 P22, SA335 P22 |
| Size | 1/2"- 24" |
| Schedules | sch.10 to sch.XXS |
| Type | Seamless / ERW / Welded / Fabricated |
| Length | Single Random, Double Random & Cut Length |
| A335 P22 Pipe End | Plain End, Beveled End, Treaded |
| Usage | Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
Alloy Steel Pipe Chemical composition(%)
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
| P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | ≤0.50 | 8.50-9.50 | 0.30-0.60 |
Alloy Steel Pipe Mechanical properties
| Grade | Tensile strength | Yield strength | Elongation |
| P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
| P91 | ≥585 | ≥415 | ≥20 |
| P92 | ≥620 | ≥440 | ≥20 |
A335 P22 pipe specification are many and all of these can be found right here at our website. A335 P22 pipes are sort of chrome moly pipes and these pipes have been listed in ASTM A335. A335 P22 pipes are seamless ferritic alloy steel pipes. The Heat Treatment requirements for A335 P22 pipes are full or isothermal anneal and for subcritical annealing or tempering, the temperature range is 675 degrees Celsius (1250 degrees Fahrenheit.) Mechanical properties of A335 P22 pipes are that they have a minimal Elongation Percentage of 30/20. Their minimum Yield Strength is 205 Mpa and the minimum Tensile Strength is 415 Mpa.
Applications
P22 is suitable for high temperature environments including those found in the following industries
Power generation
Petrochemicals
Gas processing