430 Stainless Steel Coil

The 430 Stainless Steel Coil is a ferritic chromium alloy offering excellent formability and thermal conductivity at a lower cost. This coil provides good corrosion resistance for indoor applications while maintaining magnetic properties for specialized requirements .

Product Parameters

Thickness: We offer coils from 0.15mm to 8.0mm for cold rolled, and 3.0mm to 12.0mm for hot rolled options .
Width: Available widths range from 600mm to 2000mm .
Standard sizes: Common widths include 1000mm, 1219mm, 1250mm, and 1500mm .
Processing technology: We use hot rolling and cold rolling processes with annealing and pickling .
Execution standards: Products comply with ASTM A240, JIS G4304, EN 10088, and GB/T 3280 .
Packaging method: We secure coils with steel straps, protective wrapping, and waterproof paper on steel or wooden pallets for export .
Supported surface treatments: Options include 2B, BA, No.1, No.4, 2D, HL, and PVC coated finishes . We support various surface customizations.

Chemical Composition (Typical %)

Carbon: 0.12 max .
Manganese: 1.00 max .
Phosphorus: 0.040 max .
Sulfur: 0.030 max .
Silicon: 0.75-1.00 max .
Chromium: 16.0 – 18.0 .
Nickel: 0.75 max .
Iron makes up the balance .

Physical Properties

Density measures 7.7 – 7.8 g/cm³ .
Tensile strength reaches 420 – 450 MPa minimum .
Yield strength is 205 MPa minimum .
Elongation reaches 22% minimum in 50mm .
Hardness shows 183 HB or 89 HRB maximum .
Modulus of elasticity is 200 GPa .
Thermal conductivity measures 23.9 – 26.1 W/m·K at 100°C, significantly higher than austenitic grades .
Electrical resistivity is 60 µΩ·cm at 20°C .
Magnetic properties: This grade is ferromagnetic .

Comparison with 304 and 316 Stainless Steel

The 430 Stainless Steel Coil offers distinct advantages for specific applications when compared to 304 and 316 grades:

Cost Optimization: 430 provides significant cost savings due to its low or zero nickel content, making it approximately 40-50% less expensive than 304 and even more affordable than 316 .

Magnetic Properties: Unlike 304 and 316 which are non-magnetic austenitic grades, 430 is ferritic and inherently magnetic, making it suitable for applications requiring magnetic responsiveness such as electromagnetic equipment and magnetic cores .

Thermal Conductivity: 430 offers superior thermal conductivity (23.9 W/m·K) compared to 304 and 316 (16.2 W/m·K), making it ideal for heat exchange applications and cookware where efficient heat transfer matters .

Corrosion Resistance: While 430 provides good resistance to atmospheric corrosion, mild acids, and oxidation at moderate temperatures, it does not match the superior chloride resistance of 316 or the general corrosion resistance of 304 in harsh environments . This makes 430 best suited for indoor and mild environments.

Formability: 430 offers excellent formability for deep drawing applications, comparable to 304 in many cases, though with lower ductility (22% elongation vs 40% for 304) .

Heat Resistance: 430 provides good oxidation resistance up to 816°C for continuous service, suitable for many appliance applications, though 304 and 316 offer better high-temperature performance .

Product Applications

The 430 Stainless Steel Coil serves as the material of choice for household appliances including refrigerator panels, dishwasher linings, microwave oven parts, and range hoods where cost optimization matters . Kitchen equipment manufacturers use this coil for cooking utensils, ovens, and kitchen sinks requiring good formability and moderate corrosion resistance . Automotive applications include trim and molding, exhaust system components, and catalytic converter shells where magnetic properties and heat resistance benefit performance . Architectural and construction projects utilize this 430 Stainless Steel Coil for indoor decorative panels, gutters, downspouts, and roofing in controlled environments . Industrial applications include combustion chambers, gas burner components, heat exchanger tubing, and furnace parts where thermal conductivity provides advantages . The food service industry employs it for catering equipment, tableware, and food preparation surfaces in dry indoor settings . For customers requiring magnetic materials, cost-effective solutions, or superior thermal transfer properties, the 430 Stainless Steel Coil delivers reliable performance across these diverse applications.

Supported surface treatments: Options include No.1, 2B, BA, 2D, No.4, HL, and 8K finishes . We support various surface customizations to meet your specific project requirements.