ASTM A240 430 Ferritic Cold Rolled Stainless Steel Sheet with 2B Finish and Magnetic Properties
ASTM A240 430 cold rolled stainless steel sheet is a widely used ferritic grade offering excellent formability, good corrosion resistance, and magnetic properties at an economical price point. Unlike austenitic grades (304, 316L), 430 contains no nickel, making it a cost-stable alternative for applications where extreme corrosion resistance is not required.
The ferritic microstructure provides magnetic properties, which is essential for induction-based applications such as home appliances and consumer electronics. Available in 2B (smooth matte) and BA (bright annealed) finishes, 430 sheet delivers attractive surface appearance suitable for both functional and decorative applications.
| Parameter | Specification |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Steel Grade | 430 (UNS S43000, EN 1.4016) |
| Manufacturing Process | Cold Rolled |
| Thickness Range | 0.3mm - 3.0mm |
| Width Range | 1000mm, 1219mm, 1500mm |
| Length Range | 2000mm, 2438mm, 3000mm or Custom |
| Surface Finish | 2B, BA (Bright Annealed), No.4, Hairline |
| Edge Condition | Mill Edge, Slit Edge |
| Magnetic Property | Yes (Ferritic) |
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.12 |
| Manganese (Mn) | ≤1.00 |
| Silicon (Si) | ≤1.00 |
| Phosphorus (P) | ≤0.040 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 16.0 - 18.0 |
| Nickel (Ni) | ≤0.75 |
| Property | Value |
|---|---|
| Tensile Strength (min) | ≥450 MPa |
| Yield Strength (0.2% offset, min) | ≥205 MPa |
| Elongation (min) | ≥22% |
| Hardness (max) | ≤183 HBW / ≤88 HRB |
- Home Appliances: Washing machine drums, dishwasher interiors, refrigerator panels, range hoods
- Kitchen Equipment: Sinks, cookware, cutlery, kitchen backsplashes
- Automotive Trim: Exhaust system components, decorative interior trim, heat shields
- Consumer Electronics: Microwave oven cavities, induction cooker tops, electronic enclosures
- Architectural Decoration: Elevator panels, interior wall cladding, column covers
- Industrial: Nitric acid storage tanks, oxidizing environment equipment, heat exchanger components
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