JIS G4304 SUS321 hot-rolled stainless steel plates and coils are renowned for their excellent corrosion resistance and mechanical properties. Derived from the Japanese Industrial Standards (JIS), these materials find wide applications in various industries due to their unique chemical composition and physical attributes.

Chemical Composition

JIS G4304 SUS321 stainless steel boasts a balanced chemical composition that includes Carbon (C) ≤ 0.08%, Silicon (Si) ≤ 1.00%, Manganese (Mn) ≤ 2.00%, Sulphur (S) ≤ 0.030%, Phosphorus (P) ≤ 0.045%, Chromium (Cr) ranging from 17.00% to 19.00%, Nickel (Ni) between 9.00% and 12.00%, and Titanium (Ti) ≥ 5×C%. This composition ensures high corrosion resistance, especially in high-temperature environments.

Mechanical Properties

In terms of mechanical properties, SUS321 stainless steel plates and coils exhibit a minimum tensile strength of 520 MPa, a yield strength of at least 205 MPa, and an elongation rate of not less than 40%. These values guarantee exceptional durability and stability under various operating conditions.

Heat Treatment Status

JIS G4304 SUS321 stainless steel undergoes a controlled heat treatment process that ensures optimal material properties. The heat treatment, combined with the chemical composition, results in improved corrosion resistance and mechanical strength.

Size Range

These hot-rolled stainless steel plates and coils are available in a wide range of thicknesses and widths. The typical thickness range for plates is 3.0mm to 80mm, while the width varies from 1000mm to 2000mm. The coils, on the other hand, are offered in thicknesses from 0.025mm to 4mm and widths ranging from 2.5mm to 1550mm. The length of both plates and coils can be customized according to specific requirements.

Impact Testing

JIS G4304 SUS321 stainless steel plates and coils undergo rigorous impact testing to ensure they meet the highest standards of durability and safety. These tests simulate real-world conditions and help assess the material's resistance to impact and shock loads.

Main Application Scenarios

JIS G4304 SUS321 stainless steel plates and coils are widely used in industries where corrosion resistance and high-temperature stability are crucial. These include the petrochemical, chemical, aerospace, and power generation sectors, where they are employed in the construction of furnaces, heat exchangers, pipelines, and containers.

TJC Steel Group Supply Cases

As a leading steel supplier, TJC Steel Group has a vast experience in providing JIS G4304 SUS321 hot-rolled stainless steel plates and coils to various industries. Our clients appreciate our prompt delivery, competitive pricing, and the high quality of our products. We have successfully supplied SUS321 stainless steel materials to numerous projects in the aerospace, energy, and chemical industries, where they have performed exceptionally well.

In conclusion, JIS G4304 SUS321 hot-rolled stainless steel plates and coils are reliable materials that offer superior corrosion resistance and mechanical properties. Their versatility and adaptability to various industrial applications make them a preferred choice for numerous manufacturers and project developers.