JIS G4304 SUS420J1 hot-rolled stainless steel plates and coils are widely recognized for their exceptional properties and versatility in various applications. This article aims to provide a detailed overview of the chemical composition, mechanical properties, heat treatment status, dimensional range, impact testing, primary applications, and supply cases by TJC Steel Group.

Chemical Composition

JIS G4304 SUS420J1 stainless steel is composed of carbon (C) ≤ 0.16%, silicon (Si) ≤ 1.00%, manganese (Mn) ≤ 1.00%, phosphorus (P) ≤ 0.04%, sulfur (S) ≤ 0.03%, chromium (Cr) 12.00%-14.00%, and molybdenum (Mo) ≤ 0.60%. This precise blend of elements ensures the desired properties and performance of the steel.

Mechanical Properties

SUS420J1 exhibits excellent mechanical properties, including high hardness and wear resistance. The yield strength is ≥ 230 N/mm2, tensile strength ≥ 530 N/mm2, and elongation ≥ 20%. These properties, along with good corrosion resistance, make it suitable for demanding applications.

Heat Treatment Status

The heat treatment process of SUS420J1 stainless steel plates and coils plays a crucial role in achieving the desired physical properties. Processes such as quenching and tempering are used to enhance the hardness and strength of the material.

Dimensional Range

JIS G4304 SUS420J1 stainless steel plates are available in various thicknesses, ranging from 0.3 mm to 3.0 mm, with widths customizable to customer requirements. Coils are suitable for applications requiring thin-walled containers and rolled materials.

Impact Testing

JIS G4304 standards require impact testing to ensure the toughness and durability of SUS420J1 stainless steel plates and coils. This testing ensures that the material can withstand sudden impacts without fracturing or breaking.

Primary Applications

JIS G4304 SUS420J1 stainless steel finds widespread use in the manufacturing of knives, cutting tools, molds, bearings, and other precision mechanical components. Its hardness and wear resistance make it an ideal choice for these applications. Additionally, its corrosion resistance enables it to be used in environments exposed to atmospheric, steam, water, and oxidizing acids.

TJC Steel Group Supply Cases

As a leading supplier of stainless steel products, TJC Steel Group has successfully supplied JIS G4304 SUS420J1 hot-rolled stainless steel plates and coils to various industries. Our customers include manufacturers of precision tools, automotive parts, and chemical equipment. We pride ourselves on our ability to provide high-quality products, timely delivery, and exceptional customer service.

In conclusion, JIS G4304 SUS420J1 hot-rolled stainless steel plates and coils offer a combination of excellent properties that make them suitable for a wide range of applications. With TJC Steel Group as your trusted supplier, you can be assured of reliable products and exceptional service.