In the realm of stainless steel, the JIS G4304 SUS430J1L hot-rolled stainless steel plates and coils stand out for their unique combination of chemical composition, mechanical properties, and diverse applications. This article delves into the details of this esteemed material, highlighting its key characteristics and applications.

Chemical Composition

The SUS430J1L grade is composed primarily of chromium, which provides it with its excellent corrosion resistance. The chemical composition of this alloy includes a maximum carbon content of 0.025%, silicon up to 1.0%, manganese not exceeding 0.60%, and phosphorus and sulfur content below 0.04% and 0.03% respectively. Additionally, the chromium content is specified between 16.0% and 18.0%, ensuring the material's robust corrosion resistance. The alloy may also contain trace elements such as titanium, niobium, or zirconium, which further enhance its properties.

Mechanical Properties

The SUS430J1L grade exhibits impressive mechanical properties. It has a minimum yield strength of 667 MPa and a minimum tensile strength of 575 MPa, indicating its ability to withstand high stresses without permanent deformation. Furthermore, the material exhibits a minimum elongation of 23% and a minimum reduction of area at fracture of 33%, demonstrating its ductility and toughness.

Heat Treatment State

The SUS430J1L hot-rolled stainless steel plates and coils are typically supplied in a solution-annealed condition. This heat treatment process involves heating the material to a specific temperature range, followed by cooling, to achieve a uniform microstructure and optimize its mechanical properties.

Dimensions and Sizes

JIS G4304 specifies a wide range of dimensions and thicknesses for the SUS430J1L hot-rolled stainless steel plates and coils. The material is available in various widths, lengths, and thicknesses, making it suitable for a diverse range of applications.

Impact Testing

To ensure the material's resilience and durability, impact testing is performed on the SUS430J1L hot-rolled stainless steel plates and coils. This testing involves subjecting the material to sudden impact loads to assess its ability to withstand such forces without cracking or breaking.

Applications

The SUS430J1L grade finds widespread applications in various industries due to its excellent corrosion resistance and mechanical properties. In the construction sector, it is used for exterior cladding, roofing, and other components requiring durability and aesthetics. In the automotive industry, it is utilized for exhaust systems, mufflers, and other components exposed to high temperatures and corrosive environments. Additionally, it finds applications in the chemical, textile, and food processing industries, where its corrosion resistance and hygiene properties are crucial.

TJC Steel Group Supply Case

At TJC Steel Group, we have a rich history of supplying JIS G4304 SUS430J1L hot-rolled stainless steel plates and coils to various industries. Our expertise in material sourcing, processing, and quality assurance ensures that our customers receive the highest-quality products, tailored to their specific requirements. We have successfully supplied this material to numerous construction, automotive, and chemical processing projects, demonstrating our commitment to excellence and customer satisfaction.

In conclusion, the JIS G4304 SUS430J1L hot-rolled stainless steel plates and coils are a versatile material with exceptional properties that make it suitable for a wide range of applications. Whether in construction, automotive, or chemical processing, this material ensures durability, corrosion resistance, and reliability.