430 Stainless Steel Square Bar Overview The 430 stainless steel square bar is a cost-effective ferritic stainless steel with 16% chromium content, offering reliable corrosion resistance and excellent magnetic properties. This versatile material is ideal for indoor applications and environments requiring moderate corrosion resistance. Its non-hardenable ferritic structure provides unique advantages, including lower thermal expansion and improved heat fatigue resistance compared to austenitic grades. Key Features Cost-Effective: A budget-friendly alternative to 304 stainless steel. Magnetic Properties: Suitable for applications requiring ferromagnetic materials. Good Oxidation Resistance: Performs well at elevated temperatures. Lower Thermal Expansion: Reduces stress in thermal cycling applications. Moderate Corrosion Resistance: Ideal for mild corrosive environments. Chemical Composition (Weight %) Element Cr C Mn Si P S Fe Percentage 16.0-18.0 ≤0.12 ≤1.00 ≤1.00 ≤0.04 ≤0.03 Balance Mechanical Properties Property Value Tensile Strength 450 - 600 MPa Yield Strength 310 MPa (min) Elongation 20% (min) Hardness (Rockwell) ≤89 HRB Density 7.70 g/cm³ Specifications and Dimensions Standard Dimensions Size (mm) Length (mm) Tolerance (mm) Surface Finish 10 x 10 3000 - 6000 ±0.1 Bright / Polished 20 x 20 3000 - 6000 ±0.2 Bright / Polished 30 x 30 3000 - 6000 ±0.3 Bright / Polished 50 x 50 3000 - 6000 ±0.5 Bright / Polished Available Standards Standard Description ASTM A240 Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip. ASTM A276 Standard specification for stainless steel bars and shapes. UNS S43000 Unified Numbering System designation for 430 stainless steel. Performance Characteristics Corrosion Resistance: Performs well in mild corrosive environments and offers good oxidation resistance at elevated temperatures. Thermal Performance: Lower thermal expansion coefficient than austenitic grades, reducing stress in thermal cycling applications. Magnetic Properties: Strong ferromagnetic properties, making it suitable for magnetic applications. Formability: Moderate formability with specific requirements for welding and deep drawing. Applications The 430 stainless steel square bar is widely used in industries requiring cost-effective and reliable materials. Common applications include: Kitchen Equipment Manufacturing Commercial Grade Tables Food Service Applications Indoor Architectural Elements Decorative Components General Purpose Fabrication Technical Advantages Cost-Effective: Provides a budget-friendly alternative to 304 stainless steel. Ferromagnetic Properties: Ideal for applications requiring magnetic materials. Thermal Stability: Improved heat fatigue resistance and thermal conductivity. Reliable Mechanical Properties: Suitable for a wide range of fabrication processes. Conclusion The 430 stainless steel square bar is a versatile and cost-effective material designed for applications requiring moderate corrosion resistance and magnetic properties. Its unique combination of performance characteristics makes it a preferred choice for industries such as kitchen equipment manufacturing, food service, and architectural design. Whether for decorative components or general-purpose fabrication, 430 stainless steel delivers reliable performance and durability. Additional Information Heat Treatment Options Annealing: Heated to 815-900°C followed by rapid cooling to improve ductility and reduce hardness. Surface Finish Options Bright: Smooth and reflective finish. Polished: High-gloss finish for aesthetic applications. Black: Oxidized finish for added protection. Let us help you find the perfect 430 stainless steel square bar solution for your project!