
JIS G3446 SUS303TKA SUS304TKA SUS304LTKA SUS316TKA SUS316LTKA Austenitic Stainless Steel Tubes For Machine And Structural Purposes
Material
Austenitic stainless steels are known for their excellent corrosion resistance, high strength, and good formability. The grades SUS303TKA, SUS304TKA, SUS304LTKA, SUS316TKA, and SUS316LTKA are specifically designed for various machine and structural applications. These materials are commonly used in industries such as food processing, chemical processing, and construction due to their durability and resistance to harsh environments.
Specification
The specifications for these stainless steel tubes are outlined in the JIS G3446 standard, which provides guidelines for the manufacturing and testing of stainless steel tubes used in various applications. The tubes are available in different sizes and thicknesses to meet specific requirements.
Chemical Composition
The following table presents the chemical composition of the specified stainless steel grades:
Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
SUS303TKA | 0.15 | 1.00 | 2.00 | 0.045 | 0.030 | 17.00 | 8.00 | - |
SUS304TKA | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.00 | 8.00 | - |
SUS304LTKA | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 18.00 | 8.00 | - |
SUS316TKA | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 16.00 | 10.00 | 2.00 |
SUS316LTKA | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 16.00 | 10.00 | 2.00 |
Mechanical Properties
The mechanical properties of the specified stainless steel grades are summarized in the following table:
Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
SUS303TKA | 205 | 515 | 40 | 90 |
SUS304TKA | 215 | 505 | 40 | 90 |
SUS304LTKA | 215 | 505 | 45 | 85 |
SUS316TKA | 210 | 580 | 40 | 95 |
SUS316LTKA | 210 | 580 | 45 | 90 |
Application
The SUS303TKA, SUS304TKA, SUS304LTKA, SUS316TKA, and SUS316LTKA stainless steel tubes are widely used in various applications, including:
- Food Processing Equipment: Due to their corrosion resistance and hygienic properties.
- Chemical Processing: For handling aggressive chemicals and environments.
- Construction: Used in structural applications where strength and durability are required.
- Marine Applications: Particularly SUS316 grades, which offer enhanced resistance to seawater corrosion.
- Automotive: Components that require high strength and resistance to oxidation.





TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.





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A: Yes, we could offer the sample for free charge but need pay the cost of freight.
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