P235GH Seamless Pressure Pipe Alloy Steel Tubes For High Temperature
P235GH Seamless Pressure Pipe Alloy Steel Tubes For High Temperature
Material
P235GH is a European specified steel for use in pressure vessels, boilers, and heat exchangers. It is a non-alloy steel with specific high-temperature properties, making it suitable for applications where elevated temperatures are a factor. The material is known for its excellent weldability and formability, making it a popular choice in the manufacturing of seamless pressure pipes.
Specification
P235GH seamless pressure pipes are manufactured according to the EN 10216-2 standard. This specification covers seamless steel tubes for pressure purposes, with an emphasis on high-temperature applications. The pipes are designed to withstand high pressure and temperature conditions, ensuring safety and reliability in critical applications.
Key Features
- High Temperature Resistance: Suitable for applications involving high temperatures.
- Excellent Weldability: Facilitates easy and reliable welding processes.
- Good Formability: Allows for easy shaping and forming to meet specific design requirements.
- Durability: Offers long-lasting performance under high-stress conditions.
Chemical Composition
The chemical composition of P235GH is crucial for its performance in high-temperature environments. Below is a table presenting the typical chemical composition:
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.16 |
| Silicon (Si) | ≤ 0.35 |
| Manganese (Mn) | 0.60 - 1.20 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Nitrogen (N) | ≤ 0.012 |
Mechanical Properties
The mechanical properties of P235GH are designed to ensure performance under high-pressure and high-temperature conditions. The following table outlines these properties:
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 360 - 500 |
| Yield Strength (MPa) | ≥ 235 |
| Elongation (%) | ≥ 25 |
Similar Standards and Steel Grades
P235GH is comparable to several other international standards and steel grades, including:
- ASTM A106 Grade B: A similar specification for seamless carbon steel pipes for high-temperature service.
- DIN 17175: A German standard for seamless tubes used in boiler and heat exchanger applications.
- SA 106: An ASME specification for seamless carbon steel pipes.
Application
P235GH seamless pressure pipes are widely used in various industries due to their high-temperature and pressure resistance. Common applications include:
- Boilers: Used in the construction of boiler tubes and components.
- Heat Exchangers: Ideal for heat exchanger tubes due to their thermal conductivity and strength.
- Pressure Vessels: Suitable for manufacturing pressure vessels that operate under high pressure and temperature.
- Chemical and Petrochemical Industries: Used in the construction of equipment and pipelines that handle high-temperature fluids.
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