‌SUH616 (JIS G 4312) Heat-Resistant Stainless Steel Bar

1. Performance Characteristics

1.1 Chemical Composition and Material Properties

SUH616 stainless steel is an austenitic stainless steel with nickel and chromium as the primary alloying elements. Its typical chemical composition includes nickel (Ni) 8%-10%, chromium (Cr) 16%-18%, manganese (Mn) 1%-2%, silicon (Si) 0.5%-1%, and carbon (C) ≤0.08%. This composition imparts excellent corrosion resistance and heat resistance, enabling it to maintain stable performance even in high-temperature environments.

1.2 Physical and Mechanical Properties

Physical Properties: Density approximately 8.0 g/cm³, melting point between 1425°C and 1450°C, and excellent stability under high-temperature conditions.

Mechanical Properties: Tensile strength ≥520 MPa, yield strength ≥210 MPa, elongation ≥40%. Furthermore, the material exhibits excellent plasticity and weldability, facilitating the fabrication and assembly of complex shapes.

1.3 Special Processing Properties

Through high-temperature solution heat treatment (heating to a high temperature followed by rapid cooling), SUH616 eliminates internal stresses, significantly improving creep and oxidation resistance, while also increasing yield strength and tensile strength. Its excellent weldability makes it suitable for various processes, including argon arc welding and laser welding.

2. Main Applications

2.1 Industrial Sector

Chemical and Petroleum Industries: Used in the manufacture of reactors, pipelines, valves, and other equipment, capable of withstanding high temperatures, high pressures, and corrosive chemical environments.

Energy Equipment: Utilizes its high-temperature strength and wear resistance, such as in boiler fasteners and gas turbine blades.

2.2 Manufacturing Sector

Food Processing: Suitable for food machinery and container manufacturing due to its non-toxic and easy-to-clean material.

Automotive Industry: Used in engine exhaust valves and turbocharger components, resistant to high-temperature gas corrosion.

2.3 Other Industries

Aerospace: Utilized for rocket components and high-temperature furnaces due to its high strength and lightweight properties.

Medical Equipment: Utilized for surgical instruments and other applications due to its biocompatibility and corrosion resistance.

SUH616 stainless steel bar has become an ideal choice for high temperature, corrosion and high stress environments due to its comprehensive performance.