JIS G4304 SUS430LX, a premium grade of hot-rolled stainless steel, is renowned for its exceptional properties and wide range of applications. This article aims to provide a comprehensive overview of the chemical composition, mechanical properties, heat treatment state, dimensional range, impact testing, and its principal applications, along with relevant supply cases from TJC Steel Group.

Chemical Composition

The SUS430LX stainless steel boasts a chemical composition that primarily comprises 17% to 18% chromium, ensuring superior corrosion resistance. It also contains carbon ranging from 0.12% to 0.25%, along with trace amounts of nickel, molybdenum, copper, and other elements. This precise balance of elements provides the material with exceptional performance characteristics.

Mechanical Properties

The SUS430LX stainless steel exhibits remarkable mechanical properties. Its tensile strength ranges from 450 to 600 MPa, while the yield strength exceeds 205 MPa. Additionally, it possesses excellent ductility and impact toughness, enabling it to withstand significant external forces without deformation or fracture.

Heat Treatment State

The heat treatment process of SUS430LX stainless steel involves two critical stages: solution treatment and stabilization treatment. In the solution treatment stage, the material is heated to approximately 1040°C, allowing the austenite phase to transform into a single martensite phase. This enhances the material's strength and hardness. The subsequent stabilization treatment involves rapid cooling to room temperature, typically through water or oil quenching, ensuring material integrity and stability.

Dimensional Range

JIS G4304 specifies precise dimensional tolerances for SUS430LX stainless steel plates and coils. The thickness of the plates can vary, depending on the specific application, while the coils are typically produced in standard widths and lengths. This flexibility in dimensional range ensures suitability for a wide range of applications.

Impact Testing

To ensure the material's resilience and durability, SUS430LX stainless steel undergoes rigorous impact testing. These tests involve subjecting the material to sudden and severe forces, simulating real-world conditions that the material may encounter. The material's ability to withstand such impacts without failure demonstrates its exceptional toughness and reliability.

Principal Applications

The SUS430LX stainless steel finds widespread application in various industries. Its excellent corrosion resistance makes it a preferred choice for chemical equipment, medical devices, and other applications requiring high resistance to corrosive environments. Additionally, its strength and ductility make it suitable for construction and automotive industries, where thin sheets are often used. Its welding properties also enable its use in pipeline engineering and other similar applications.

TJC Steel Group Supply Cases

As a leading steel supplier, TJC Steel Group has a vast portfolio of SUS430LX stainless steel products. We have successfully supplied this material to numerous clients across various industries, including chemical plants, medical device manufacturers, construction companies, and automotive manufacturers. Our clients appreciate the consistent quality, precise dimensional tolerance, and reliable performance of our SUS430LX products.

In conclusion, JIS G4304 SUS430LX hot-rolled stainless steel plate and coil is a versatile material with exceptional properties that cater to a wide range of applications. Its precise chemical composition, remarkable mechanical properties, and rigorous heat treatment ensure its reliability and durability. TJC Steel Group is proud to offer this premium material to clients across industries.