ASTM A335 / ASME SA335 Alloy Steel P92 Seamless
Pipe Boiler Pipe
P92 is known for its remarkable strength at elevated temperatures,
making it suitable for critical applications in power generation
and petrochemical industries. Grade P92 is a type
of chrome-molybdenum alloy, which is primarily used in
high-temperature applications, such as in power
plants, chemical processing and high perssure/temperature
services.
Advantages of using ASTM A335 P92 Seamless Pipes: Superior mechanical properties at high temperatures. - Enhanced creep and oxidation resistance.
- Long-term durability in high-stress environments.
- Better suited for severe thermal and mechanical stress
applications.
Specifications of Alloy Steel Seamless Pipe | Standard | ASTM A335, ASME SA335 | | Grade | Gr. P5, P9, P11, P12, P21, P22 , P91, P92 | | Size | 1/2" TO 24 "IN OD & NB, can custom | | Schedule | SCH 5- SCH XXS, can custom | | Type | Seamless | | Length | Single Random, Double Random & Cut Length | | End | Plain End, Beveled End |
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 |
Mechanical properties | Grade | Tensile strength | Yield strength | Elongation | | P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 | | P91 | ≥585 | ≥415 | ≥20 | | P92 | ≥620 | ≥440 | ≥20 |
Applications
1. Power Generation:
Superheaters: Used in power plants to heat steam above its boiling
point for increased efficiency.
Reheaters: Employed to reheat steam before it enters the turbine,
enhancing performance.
Boiler Components: Integral in boiler systems, particularly in
high-pressure environments.
2. Petrochemical Industry:
Used in refineries for transporting fluids at high temperatures and
pressures.
Essential in chemical reactors where heat resistance and strength
are crucial.
3. Industrial Processing:
Commonly utilized in heat exchangers, where efficient heat transfer
is necessary.
Employed in fossil fuel processing, handling high-temperature
fluids.
4. Chemical Plants:
A335 P92 pipes can be used in applications involving corrosive
chemicals, where their high chromium content provides necessary
oxidation resistance.
5. Oil and Gas:
Used in offshore and onshore drilling operations for pipelines that
carry hot fluids, maintaining integrity under extreme conditions.
6. Aerospace and Defense:
Occasionally used in specialized applications that require
high-strength materials under extreme conditions.
7. Marine Applications:
In some instances, A335 P92 may be used in marine environments
where high temperatures and pressures occur, although this is less
common than in other industries.
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