SUS 304 is a material grade in the Japanese JIS standard, equivalent to AISI 304 or EN 1.4301, belonging to the austenitic stainless steel family. It contains 18% chromium and 8% nickel, achieving a balanced combination of oxidation resistance, ductility, and strength, making it an ideal choice for electronic components, heat-resistant insulation layers, sensors, and battery applications.
SUS 304 Stainless Steel Foil Specifications
| Parameter | Description |
|---|---|
| Standard | JIS G4305 / ASTM A240 / EN 10088-2 |
| Grade | SUS 304 / AISI 304 / EN 1.4301 |
| Type | Cold Rolled Thin Foil / Annealed Foil |
| Thickness Range | 0.01 mm – 0.2 mm |
| Width Range | 10 mm – 600 mm |
| Length | As required or in coil form |
| Surface Finish | 2B, BA (Bright Annealed), Mirror, or Custom |
| Hardness | Soft Annealed (1/4H, 1/2H, Full Hard optional) |
| Density | 7.93 g/cm³ |
| Melting Point | 1400 – 1450°C |
| Magnetic Properties | Non-magnetic in annealed condition |
| Manufacturing Process | Cold rolling + Bright annealing + Precision slitting |
Chemical Composition (% by Weight)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 210 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 200 HV (Annealed) |
| Density | 7.93 g/cm³ |
Typical Sizes and Tolerances
| Thickness (mm) | Width (mm) | Tolerance (± mm) | Surface Finish |
|---|---|---|---|
| 0.01 – 0.02 | 300 – 600 | ±0.002 | Bright Annealed (BA) |
| 0.03 – 0.05 | 300 – 600 | ±0.003 | 2B or BA |
| 0.06 – 0.1 | 300 – 457 | ±0.005 | 2B or Mirror |
| 0.12 – 0.2 | 300 – 457 | ±0.01 | 2B |
Packaging and Delivery
| Item | Details |
|---|---|
| Package | Standard export seaworthy package, suitable for all types of transport. Each roll is wrapped in water-proof paper, edge protected, and packed in wooden boxes or pallets. |
| Bulk Size | Custom sizes available upon request. |
| Loading Port | Tianjin, Qingdao, or any main Chinese seaport. |
| Container Capacity | 1 × 20ft: Max. 25 tons, Max. length 5.8 m 1 × 40ft: Max. 25 tons, Max. length 11.8 m |
| Delivery Time | 7–15 working days after receiving advance payment or depending on order quantity. |
SUS 304 stainless steel foil
SS 304 stainless steel foil