In the realm of stainless steel, JIS G4304 SUS631 hot-rolled stainless steel plates and coils stand as a testament to superior quality and unwavering performance. These materials, with their unique chemical composition and mechanical properties, have found widespread applications in various industries, ranging from aerospace to chemical processing.

Chemical Composition

JIS G4304 SUS631 stainless steel boasts a precisely balanced chemical composition that ensures its exceptional performance. The alloy is primarily composed of chromium (Cr) in the range of 17.00~18.00%, nickel (Ni) between 6.50~7.75%, and aluminum (Al) between 0.75~1.50%. Additionally, it contains small amounts of carbon (C), manganese (Mn), silicon (Si), phosphorus (P), and sulfur (S), all within strict limits to maintain the alloy's integrity and durability.

Mechanical Properties

The mechanical properties of SUS631 stainless steel are truly remarkable. This material exhibits high strength and hardness, making it suitable for applications that require exceptional durability. Its tensile strength and yield strength are significantly higher than many other stainless steel grades, while maintaining good ductility and toughness. The alloy's excellent fatigue resistance further enhances its ability to withstand repeated stress cycles.

Heat Treatment Status

The heat treatment process of SUS631 stainless steel is crucial to its overall performance. Through a combination of solution treatment and aging, the alloy achieves a fine dispersion of metal intermetallic compounds, resulting in enhanced strength and hardness. This heat treatment also improves the alloy's corrosion resistance and ensures consistent performance in various environments.

Size Range

JIS G4304 SUS631 hot-rolled stainless steel plates and coils are available in a wide range of sizes to meet the diverse needs of our customers. The thickness of the plates typically ranges from 3.0mm to 16.0mm, while the coils can be supplied in various widths and diameters. The standard size ranges ensure easy integration into existing systems and equipment.

Impact Test

The impact test is an essential part of the quality assurance process for SUS631 stainless steel. This test measures the alloy's ability to resist impact loads and assesses its ductility and toughness. The SUS631 alloy has demonstrated excellent results in impact tests, further confirming its suitability for demanding applications.

Main Application Scenarios

The versatility of JIS G4304 SUS631 stainless steel plates and coils is reflected in its wide range of applications. In the aerospace industry, it is used in the manufacture of aircraft structures, engine components, and fasteners due to its high strength and corrosion resistance. In the chemical processing and petrochemical industries, SUS631 stainless steel is preferred for equipment and pipelines that must endure harsh environments and corrosive media. Additionally, it finds applications in the automotive, medical, and general engineering sectors due to its excellent mechanical properties and fabricability.

TJC Steel Group Supply Cases

At TJC Steel Group, we have a proud history of supplying JIS G4304 SUS631 hot-rolled stainless steel plates and coils to customers across various industries. Our commitment to quality and service has been recognized by leading manufacturers and engineers worldwide. One such case involves the supply of SUS631 stainless steel plates for use in the construction of a chemical plant. The customer was impressed by the material's corrosion resistance and mechanical properties, which ensured the plant's safe and reliable operation.

In conclusion, JIS G4304 SUS631 hot-rolled stainless steel plates and coils represent the pinnacle of stainless steel technology. Their unique chemical composition, mechanical properties, and versatile applications make them the ideal choice for demanding industrial applications. At TJC Steel Group, we are committed to providing our customers with the best quality materials and services to ensure their success.