JIS G7219 TS360 TS410 TS430 TS500 Seamless Pressure Pipe: Seamless Steel Tubes for Pressure Purposes
Material
JIS G7219 specifies the requirements for seamless steel tubes used for pressure purposes. These tubes are designed to withstand high pressure and are commonly used in industries such as oil and gas, petrochemicals, and power generation. The seamless construction ensures uniformity and strength, making them ideal for critical applications.
Specification
The JIS G7219 standard covers several grades, including TS360, TS410, TS430, and TS500. Each grade has specific mechanical and chemical properties tailored to different pressure and temperature conditions. The tubes are manufactured using high-quality steel and advanced production techniques to ensure durability and reliability.
Key Features
- High Strength: Designed to withstand high pressure and temperature.
- Corrosion Resistance: Suitable for use in harsh environments.
- Uniformity: Seamless construction ensures consistent quality.
- Versatility: Available in various grades to suit different applications.
- Durability: Long service life with minimal maintenance.
Chemical Composition
The chemical composition of the JIS G7219 seamless steel tubes is crucial for their performance. Below is a table presenting the typical chemical composition for each grade:
| Element | TS360 | TS410 | TS430 | TS500 |
| Carbon (C) | 0.20% max | 0.22% max | 0.25% max | 0.28% max |
| Silicon (Si) | 0.35% max | 0.35% max | 0.35% max | 0.35% max |
| Manganese (Mn) | 0.90% max | 1.00% max | 1.10% max | 1.20% max |
| Phosphorus (P) | 0.035% max | 0.035% max | 0.035% max | 0.035% max |
| Sulfur (S) | 0.035% max | 0.035% max | 0.035% max | 0.035% max |
Mechanical Properties
The mechanical properties of these tubes determine their suitability for various pressure applications. The table below outlines the mechanical properties for each grade:
| Property | TS360 | TS410 | TS430 | TS500 |
| Tensile Strength (MPa) | 360 min | 410 min | 430 min | 500 min |
| Yield Strength (MPa) | 235 min | 245 min | 275 min | 325 min |
| Elongation (%) | 20 min | 18 min | 16 min | 15 min |
Steel Grade
The JIS G7219 standard includes several steel grades, each designed for specific pressure and temperature conditions. The grades TS360, TS410, TS430, and TS500 offer a range of mechanical and chemical properties to meet diverse industrial needs.
Application
These seamless steel tubes are used in various applications, including:
- Oil and Gas Industry: For transporting oil, gas, and other fluids under high pressure.
- Petrochemical Plants: In processing units where high-pressure resistance is essential.
- Power Generation: In boilers and heat exchangers.
- Chemical Processing: For handling corrosive and high-pressure chemicals.
Possible Alternative Grades
While JIS G7219 provides a robust solution for pressure applications, alternative grades may be considered based on specific requirements:
- ASTM A106: A widely used standard for seamless carbon steel pipes for high-temperature service.
- EN 10216: European standard for seamless steel tubes for pressure purposes.
- API 5L: Specification for line pipe suitable for conveying gas, water, and oil.
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