SUS301 Half-Hard Stainless Steel Strips 1/2H Spring Strip Coils ASTM JIS GB Standard

Products Specification

• Material Composition: Approximately 16 - 18% Chromium, 6 - 8% Nickel, with small amounts of Carbon, Manganese, Silicon, Phosphorus, and Sulfur

• Hardness: Rockwell B Scale 85 - 95

• Tensile Strength: 900 - 1200 MPa

• Yield Strength: 400 - 600 MPa

• Elongation at Break: 20 - 30%

• Electrical Conductivity: 1.3 x 10⁶ S/m

• Thermal Conductivity: 16 W/(m·K)

1. Enhanced Fatigue Resistance: The half - hard state significantly improves the strip's fatigue resistance, making it suitable for components that undergo repeated stress cycles, like springs and conveyor belts.

2. Superior Wear Resistance: Its microstructure, refined through the cold - rolling process, offers excellent wear resistance, extending the service life of parts in contact - intensive applications.

3. Low Magnetic Permeability: Even after undergoing cold working, the strip maintains a relatively low magnetic permeability, making it a preferred choice for applications where magnetic interference needs to be minimized, such as in some electrical and medical devices.

4. High - Temperature Stability: Can withstand elevated temperatures up to 700°C without significant loss of mechanical properties, enabling its use in high - heat environments.

• Thickness: Ranging from 0.05 mm to 2.5 mm, with a thickness tolerance of ± 0.01 mm for thicknesses below 1 mm and ± 0.03 mm for thicknesses above 1 mm

• Width: Available from 10 mm to 500 mm, with a width tolerance of ± 0.5 mm

• Coil Inner Diameter: 406 mm (16 inches) as standard, but can be customized upon request

• Coil Outer Diameter: Typically up to 1500 mm, depending on the thickness and width of the strip

1. Aerospace Industry: Used for manufacturing aircraft structural components, fuel lines, and brackets, where its high strength - to - weight ratio, fatigue resistance, and high - temperature stability are crucial.

2. Medical Equipment: Employed in the production of surgical instruments, dental tools, and medical implants due to its biocompatibility, corrosion resistance, and low magnetic permeability.

3. Watch and Jewelry: Ideal for creating watch bands, bezels, and high - end jewelry components, thanks to its attractive surface finish and excellent formability.

4. Spring Manufacturing: Widely used in the production of compression, tension, and torsion springs, leveraging its superior fatigue resistance and strength.

5. Home Appliance: Applied in the construction of refrigerator shelves, oven racks, and washing machine drums, providing durability and resistance to corrosion from household chemicals.

• Packaging: Each coil of the 301 half hard stainless steel strip is first wrapped with a double - layer of anti - static, anti - corrosion polyethylene film to safeguard the surface from scratches, moisture, and oxidation. Then, it is secured with stainless - steel strapping bands to maintain the coil's shape. The packaged coils are placed in custom - designed wooden crates with shock - absorbing foam inserts to prevent any movement during transit. For export, the crates are fumigated and marked with international shipping labels.

• Transportation: For domestic orders, the products are transported via covered trucks with air - suspension systems to minimize vibrations. International shipments are typically sent by sea in 20 - foot or 40 - foot containers, which are temperature - and humidity - controlled to ensure the integrity of the stainless - steel strips. Expedited air freight options are available for urgent orders, with the coils carefully packed in flight - approved containers.