Seamless Steel Tube JIS G3461 Carbon Steel Tubes for Boiler And Heat Exchanger
Introduction
Seamless steel tubes play a vital role in various industries, particularly in applications where high temperatures and pressure are involved. One such application is in boilers and heat exchangers, where the Seamless Steel Tube JIS G3461 Carbon Steel Tubes find extensive use. These tubes are designed to withstand elevated temperatures and are specifically manufactured to meet the requirements of boiler and heat exchanger applications. This article provides an overview of the material, specifications, chemical composition, mechanical properties, steel grade, and applications of Seamless Steel Tube JIS G3461 Carbon Steel Tubes.
Material
The Seamless Steel Tube JIS G3461 Carbon Steel Tubes are made from carbon steel, which is known for its excellent mechanical properties and high strength. Carbon steel is an alloy primarily composed of iron and carbon, with small amounts of other elements such as manganese, silicon, and sulfur.
Specification
The JIS G3461 standard specifies the requirements for carbon steel tubes used in boiler and heat exchanger applications. The specification covers several grades of carbon steel tubes, each with specific chemical composition and mechanical properties. The standard ensures the tubes are suitable for high-temperature service and have excellent heat transfer properties.
Chemical Composition
The chemical composition of Seamless Steel Tube JIS G3461 Carbon Steel Tubes varies depending on the specific grade. The following table provides an overview of the typical chemical composition for some commonly used grades:
| Grade | Chemical Composition |
| STB340 | C: 0.18-0.23%, Si: 0.15-0.35%, Mn: 0.30-0.60% |
| STB410 | C: 0.32-0.38%, Si: 0.10-0.35%, Mn: 0.30-0.80% |
| STB510 | C: 0.28-0.34%, Si: 0.10-0.35%, Mn: 0.30-0.80% |
Mechanical Properties
The Seamless Steel Tube JIS G3461 Carbon Steel Tubes exhibit excellent mechanical properties, making them suitable for boiler and heat exchanger applications. The following table presents the typical mechanical properties for different grades:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| STB340 | 340 min | 175 min | 35 min |
| STB410 | 410 min | 245 min | 25 min |
| STB510 | 510 min | 295 min | 25 min |
Steel Grade
The Seamless Steel Tube JIS G3461 Carbon Steel Tubes are available in various steel grades. The commonly used grades include STB340, STB410, and STB510. These grades are carefully selected based on their chemical composition and mechanical properties to ensure optimal performance in boiler and heat exchanger applications.
Application
Seamless Steel Tube JIS G3461 Carbon Steel Tubes find extensive application in boilers and heat exchangers. These tubes are specifically designed to withstand high temperatures and pressure, making them suitable for transferring heat from one fluid to another. They are widely used in power plants, refineries, petrochemical plants, and other industrial facilities where efficient heat exchange is crucial for process operations.
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