Astm A335 P22 Chrome Steel Pipe
Material and Specification
Astm A335 P22 is a seamless ferritic alloy steel pipe intended for high-temperature service. It is commonly used in power plants, refineries, and other industrial applications where high-temperature and pressure conditions are encountered. The material conforms to the ASTM A335 standard, which covers both alloy steel pipes and alloy steel seamless tubes. The specific material and manufacturing requirements are detailed in this standard.
Chemical Composition
| Element | Composition (%) |
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | 0.025 |
| Sulfur (S) | 0.025 |
| Silicon (Si) | 0.50 max |
| Chromium (Cr) | 1.90 - 2.60 |
| Molybdenum (Mo) | 0.87 - 1.13 |
Mechanical Properties
The mechanical properties of Astm A335 P22 Steel Pipe are essential for understanding its suitability for various applications.
| Property | Value |
| Tensile Strength | 415 min MPa |
| Yield Strength | 205 min MPa |
| Elongation | 30% min |
| Hardness (HB) | 163 max |
Steel Grade
The steel grade of Astm A335 P22 Steel Pipe is denoted by the UNS (Unified Numbering System) designation, which is K21590.
Application
Astm A335 P22 Chrome Steel Pipe finds its application in high-temperature environments where exceptional resistance to creep and stress-corrosion cracking is required. Some of the common applications include:
Power Plants: The pipe is used in power generation units for transporting steam at high temperatures and pressures.
Refineries: It is utilized in refineries for processing various hydrocarbons at elevated temperatures.
Petrochemical Industry: The pipe serves the petrochemical sector in transporting fluids in harsh conditions.
Heat Exchangers: Astm A335 P22 is employed in heat exchangers for efficient heat transfer in high-temperature applications.
High-Temperature Piping Systems: It is widely used in industries requiring high-temperature piping systems such as chemical processing and gas transportation.
Boilers: The pipe is an essential component in boiler systems for generating steam.
Oil and Gas Industry: Astm A335 P22 Steel Pipe is used in various oil and gas applications where resistance to high-temperature and pressure is vital.
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