JIS G 3463-1994 Stainless Steel Tubes for Boilers and Heat Exchangers

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JIS G 3463-1994 is a standard in Japan for stainless steel tubing to be used in boilers and heat exchangers. The most common material grade, type and size specified within the standard is SS304 (Type 304) and its designations come in 3.2 and 5.5 mm thicknesses.

The standard outlines the requirements for mechanical properties, chemical composition, surface quality and test methods applicable to the tubes. SS 304 is an austenitic alloy of stainless steel with a minimum of 18% chromium and 8% nickel. The carbon content is limited to a maximum of 0.08%. The specifications for this grade are that the tubes be annealed and pickled, and are cold-worked and reduced using the rolling process.

The mechanical properties and test methods for type 304 tubing include requirement for the tensile strength and yield strength, limitation for the maximum elongation, limitation for the minimum bend radius, stress corrosion cracking test, transverse tension test (ring expansion), hardness test and eddy current test.

The specifications also outline the chemical composition requirements for type 304 tubing. These components include, but are not limited to, chromium, nickel, manganese, phosphorus, sulfur and nitrogen. In addition, the requirements cover the copper content with a maximum limit of 0.50%.

The surface quality of type 304 tubing is also specified within the standard. It covers maximum allowable variations between the surfaces and tubes on dimensions, length, trace radius, number of sharp edges and mechanical polishing.

Finally, the test methods outlined in this standard cover the testing of mechanical properties and chemical composition as well as verification of trace radius in the tubes’ surface finishing.

In summary, JIS G 3463-1994 outlines the specifications for stainless steel tubes to be used for boilers and heat exchangers. It covers the mechanical properties, chemical composition, surface quality and test methods applicable to SS304 tubing. Adhering to these standards is important in guaranteeing the quality and safety of these tubes.

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JIS G 3463-1994 refers to a stainless steel pipes used for boilers and heat exchangers. This type of stainless steel tube is developed and designed for water and chemical processing, working in a wide range of temperatures and pressure. Standard JIS G 3463-1994 stainless steel pipes have excellent corrosion resistance and high temperature strength, making them ideal for the rigorous demands of operation in boilers and heat exchangers.

JIS G 3463-1994 stainless steel tubes are available in a variety of sizes to meet your needs. Their weldability helps make it easy to fabricate without special tools or welding materials, while their high chemical and corrosion resistance makes them an excellent choice for applications in many corrosive chemical or high temperature environments. The outer surface of these stainless steel pipes is typically polished to reduce surface imperfections and reflectivity, however, other finishes such as satin are also possible.

JIS G 3463-1994 stainless steel tubes are ideal for working in hot water and steam services. These stainless steel tubes are used extensively in the petrochemical, power plant, shipbuilding, paper making and food processing industries. These tubes can be used for a wide variety of applications, from cooling water piping to foodstuffs, hot and cold gases, and fluids like hydrofluoric acids, ammonia and others.

JIS G 3463-1994 stainless steel tubes are made up of austenitic steel grades, making them extremely tough and resistant to environmental damage. They also provide superior long-term cost savings due to their durability and resistance to abrasive environments. JIS G 3463-1994 stainless steel pipes are also easy to fabricate and weld, so they can be modified for specific needs.

Overall, JIS G 3463-1994 stainless steel pipes offer excellent benefits for a variety of applications. Their superior corrosion resistance, weldability, and temperature resistance make them a great choice for the petrochemical, power plant, shipbuilding, paper making and food processing industries. Their low cost and versatility make them an excellent option for manufacturers who are looking for safe and reliable piping solutions.