430 Stainless Steel Coil – Premium Ferritic Coil for Decorative & Functional Applications
Meta Description: Discover 430 stainless steel coils with superior mirror finish capability, high magnetic properties, and 40-60% cost savings vs 304. Ideal for kitchen, automotive, and architectural uses.
Introduction
430 Stainless Steel Coil is one of the most popular and versatile materials in the stainless steel family, widely used for decorative, functional, and cost-effective applications. Known for its excellent surface polishability and magnetic properties, 430 ferritic stainless steel coil offers outstanding performance at a significantly lower cost compared to its austenitic counterparts, such as 304 stainless steel. Offering up to 40-60% savings in material cost, 430 stainless steel coil provides an excellent balance of strength, durability, and aesthetics, making it ideal for high-end kitchen appliances, automotive trim, architectural decoration, and more.
The coil form provides flexibility in manufacturing, as it allows for precision slitting, efficient processing, and easy handling during fabrication. Whether it's used in the production of refrigerator doors, dishwasher panels, or luxury elevator cabins, 430 stainless steel coil is an excellent choice for both functional and decorative purposes. Its ability to achieve a perfect mirror 8K finish, along with its superior corrosion resistance in mild environments, makes it a go-to material in industries where appearance and long-lasting performance are crucial.
This product detail page will delve into the key features, technical specifications, available finishes, and applications of 430 stainless steel coil. Whether you're looking to source 430 stainless steel coil for your next project or exploring new material options, we provide everything you need to make an informed decision.
Product Overview & Unbeatable Advantages
- Cost-Effective: 430 stainless steel is 40-60% cheaper than 304 stainless steel, while maintaining similar appearance and performance, making it the best choice for budget-conscious projects.
- Mirror Polishability: The coil can achieve an impeccable mirror 8K finish, making it ideal for decorative and luxury applications such as kitchen backsplashes, elevator interiors, and automotive trim.
- Excellent Magnetic Properties: As a ferritic grade, 430 stainless steel is fully magnetic, which is essential for certain industrial applications requiring magnetic interaction.
- Superior Corrosion Resistance: While not as resistant as austenitic grades like 304, 430 offers good corrosion resistance in mild environments, including atmospheric and indoor conditions.
- High Formability: 430 stainless steel coil offers excellent formability, making it ideal for applications requiring bending, deep drawing, or stamping.
- Versatile Finishes: Available in a wide range of finishes, including BA, 2B, No.4, and 8K mirror, allowing customization for various aesthetic and functional applications.
- Sustainable and Durable: A cost-effective and sustainable material option with excellent longevity and low maintenance needs.
430 stainless steel coil is particularly well-suited for applications requiring both durability and aesthetic appeal. Its ability to achieve stunning surface finishes, along with its affordability, makes it a top choice for industries such as kitchen appliances, automotive trim, and architectural decoration. The magnetic properties add further value, making 430 stainless steel coil a versatile material for a range of uses.
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.12 |
| Manganese (Mn) | 1.0 – 1.5 |
| Silicon (Si) | ≤1.00 |
| Phosphorus (P) | ≤0.04 |
| Sulfur (S) | ≤0.03 |
| Chromium (Cr) | 16.00 – 18.00 |
| Nickel (Ni) | ≤0.75 |
| Nitrogen (N) | ≤0.10 |
The chemical composition of 430 stainless steel ensures that it maintains its strength, durability, and corrosion resistance, while also allowing it to be magnetic and highly workable. The chromium content of 16-18% provides a good balance of corrosion resistance while still being significantly more cost-effective than austenitic grades like 304.
Mechanical Properties
| Property | Annealed (Soft) | Skin-Passed (Hardened) |
|---|---|---|
| Yield Strength (MPa) | 250 – 300 | 400 – 500 |
| Ultimate Strength (MPa) | 450 – 550 | 600 – 700 |
| Elongation (%) | ≥25% | ≤15% |
| Hardness (HB) | ≤170 | 180 – 250 |
430 stainless steel coil exhibits good strength and toughness, especially in its hardened state. The annealed condition offers better formability, while the skin-passed coil has increased hardness and strength for applications requiring greater durability.
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 7.7 |
| Thermal Expansion (10⁻⁶/°C) | 11.5 |
| Thermal Conductivity (W/m·K) | 25.5 |
| Electrical Resistivity (μΩ·cm) | 0.70 |
| Magnetic Permeability (μ) | 1.1 (Ferritic) |
430 stainless steel has a relatively low thermal conductivity, which helps in applications where heat insulation is required. The material's magnetic permeability makes it suitable for use in magnetic applications.
430 vs 304 vs 201 vs 441 vs 409 Coil Comparison
| Property | 430 Stainless Steel | 304 Stainless Steel | 201 Stainless Steel | 441 Stainless Steel | 409 Stainless Steel |
|---|---|---|---|---|---|
| Cost | Low | High | Moderate | Moderate | Very Low |
| Corrosion Resistance | Moderate | Excellent | Good | Good | Moderate |
| Polishability | Excellent (8K) | Excellent (8K) | Fair | Good | Fair |
| Magnetic | Yes | No | Yes | Yes | Yes |
| Formability | Good | Excellent | Good | Good | Good |
| Applications | Appliances, Trim | Appliances, Trim | Budget Applications | Automotive, Trim | Automotive, Trim |
430 stainless steel coil is significantly more cost-effective than 304, with similar surface finish capabilities. It provides good corrosion resistance, though it is not as resistant as 304, making it ideal for indoor and mild outdoor applications.
Standard Specifications
| Thickness (mm) | Width (mm) | ID (mm) | Finish Options |
|---|---|---|---|
| 0.05 – 3.0 | 3 – 1500 | 300/400/508 | 2B, 2D, BA, No.3, No.4, HL, 8K Mirror, Vibration |
The coil is available in thicknesses as thin as 0.05 mm, with widths ranging up to 1500 mm. Various finishes are available, allowing for diverse applications across industries that require high-quality decorative and functional stainless steel.
Surface Finish Guide
- 2B Finish: A smooth, slightly reflective finish that is ideal for industrial applications requiring moderate aesthetics and corrosion resistance.
- BA Finish: A bright annealed finish that provides a smooth, reflective surface ideal for decorative purposes.
- No.4 Finish: A brushed finish used in a wide range of applications, including kitchen equipment, elevators, and automotive trim.
- 8K Mirror Finish: Provides a highly reflective, mirror-like surface suitable for luxury applications in automotive trim, elevator interiors, and decorative surfaces.
- HL Finish: A hairline finish that provides a polished appearance while maintaining a consistent surface texture.
Major Applications
- Kitchen Appliances: Refrigerator liners, oven parts, dishwasher panels, stove tops.
- Automotive Trim: Mirror-like finishes for exterior and interior parts.
- Architectural Decoration: Elevator panels, luxury building facades, handrails.
- Catering Equipment: Food processing equipment, work tables, sinks.
- Luxury Interiors: Used in high-end elevator cabins and furniture.
- Food-Contact Equipment: Food-grade 430 stainless steel used in processing equipment and storage.
Caption: Perfect mirror 8K and BA finish 430 stainless steel coils on precision slitting line
Caption: Professional infographic 430 stainless steel coil data sheet + side-by-side mirror comparison vs 304
Caption: Real-life collage – 430 coil used in luxury elevator interiors, refrigerator doors, kitchen backsplashes, brushed automotive trimWhy We Are the Best 430 Stainless Steel Coil Distributor
We are the global No.1 430 stainless steel coil supplier, offering:
- 50,000+ tons permanent stock of 430 stainless steel coils, ensuring availability and quick delivery.
- In-house bright annealing line for improved surface quality.
- Precision slitting tolerance of ±0.01 mm, ensuring high accuracy for custom orders.
- Oscillated/traverse winding available for bulk processing needs.
- Anti-dumping free sources, providing a cost-effective supply chain.
- Full EN 10204 3.1/3.2 certificates for full traceability.
- Fastest delivery worldwide, with expedited shipping options.
- Unbeatable 430 stainless steel coil price, providing the best value for your projects.
Packaging & Export Standards
We offer VCI paper for corrosion protection, blue interleaving film, wooden crates, and steel edge protectors to ensure that your coils are securely packed for safe transit.
FAQ Section
1. Is 430 stainless steel coil magnetic?
Yes, 430 stainless steel is fully magnetic, which is a key feature for certain industrial applications.
2. How does 430 compare to 304 stainless steel?
430 is much more cost-effective (40-60% cheaper) than 304, offering similar appearance and corrosion resistance in mild environments.
3. Can 430 coil achieve a perfect mirror 8K finish?
Yes, 430 stainless steel coil can achieve an excellent mirror 8K finish, making it perfect for luxury and decorative applications.
4. Does 430 rust outdoors?
While 430 stainless steel is resistant to corrosion, it is not recommended for outdoor use in highly corrosive environments.
5. What is the best finish for elevator panels?
The best finish for elevator panels is often the BA or No.4 brushed finish, offering both aesthetic appeal and durability.
6. What is the maximum service temperature of 430 stainless steel?
The maximum service temperature is around 870°C, though prolonged exposure to high temperatures may affect its corrosion resistance.
7. Does 430 stainless steel coil have food-contact approval?
Yes, food-grade 430 stainless steel coil is widely used in food processing equipment, though local regulations should be checked.
8. What is the minimum order quantity?
Our minimum order quantity for 430 stainless steel coil depends on the specifications but is typically based on coil weight.
9. What is the lead time for BA finish 430?
Lead times for BA finish 430 stainless steel coils are generally within 7-14 days depending on order volume.
Conclusion + Urgent Call-to-Action
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