430 Stainless Steel Flat Bar
Stellanox Steel offers premium-quality 430 Stainless Steel Flat Bars, engineered for applications requiring good corrosion resistance, excellent polishability, and magnetic properties at an economical cost. As a ferritic stainless steel, 430 flat bars are widely used in kitchen equipment, interior architecture, automotive trim, and indoor structural support systems.
They are well-suited for decorative and moderate-strength applications in dry environments where formability and oxidation resistance are key.
What is 430 Stainless Steel Flat Bar?
430 Stainless Steel Flat Bar is a solid rectangular flat section made from straight-chromium ferritic stainless steel with 16–18% chromium. It offers good resistance to oxidation and mild corrosion, and is magnetic in all conditions. This grade is often selected for decorative, non-load-bearing structural components and applications requiring a high-quality finish.
430 flat bars are non-hardenable by heat treatment but respond well to cold working, polishing, and bending.
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Stainless Steel |
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Carbon Steel |
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Duplex Stainless Steel |
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Super Duplex Stainless Steel |
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Alloy Steel |
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Titanium |
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Hastelloy |
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Inconel |
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Monel |
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Aluminium |
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Copper |
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Pure Nickel |
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Flanges |
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Forged Fittings |
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Valves |
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Fasteners |
Key Features of 430 Stainless Steel Flat Bar
- Magnetic in All Conditions: Ideal for equipment mounts, brackets, and industrial panels.
- Excellent Surface Polishability: Used for decorative, architectural, and appliance finishes.
- Good Formability: Easily bent, cut, or fabricated into desired shapes.
- Oxidation Resistant: Performs well in elevated dry heat environments (up to 815°C).
- Moderate Corrosion Resistance: Suitable for indoor and mildly corrosive conditions.
- Economical: More affordable than austenitic grades like 304 or 316.
Specification Chart – 430 Stainless Steel Flat Bar
| Property | Details |
|---|---|
| Grade | 430 (UNS S43000) |
| Standards | ASTM A276, ASTM A479, EN 10088-3 |
| Thickness Range | 3 mm – 50 mm |
| Width Range | 20 mm – 300 mm |
| Length | Up to 6 meters or custom cut |
| Finish | 2B, Bright, Polished, Dull Gray |
| Condition | Annealed, Cold Worked |
Chemical Composition – 430 Stainless Steel Flat Bar
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Mechanical Properties – 430 Stainless Steel Flat Bar
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 450 – 600 |
| Yield Strength (MPa) | ≥ 205 |
| Elongation (%) | ≥ 22 |
| Hardness (HRB) | ≤ 88 (Annealed) |
| Density | 7.70 g/cm³ |
Equivalent Grades – 430 Stainless Steel Flat Bar
| Standard | Grade |
|---|---|
| ASTM | 430 |
| EN | 1.4016 |
| JIS | SUS 430 |
| UNS | S43000 |
| DIN | X6Cr17 |
Applications of 430 Stainless Steel Flat Bar
- Kitchen Appliances and Counter Frames
- Automotive Interior Trim and Molding
- Architectural Railings and Wall Panels
- Display Fixtures and Retail Equipment
- Storage Racks and Mounting Supports
- Heat-Resistant Covers and Panels
Benefits of 430 Stainless Steel Flat Bar
- Budget-friendly option for decorative and non-critical applications
- Fully magnetic and suitable for brackets and magnetic latches
- Smooth surface suitable for polishing and aesthetic use
- Withstands elevated dry heat without scaling
- Good formability for fabrication and light structural use
- Widely available and easy to process
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