321 Stainless Flat Bar
321 Stainless Flat Bar
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Product Overview
High-temperature resistant 321 stainless flat bar, stabilized with titanium for superior performance in extreme heat conditions. This premium-grade stainless steel flat bar is designed to withstand prolonged exposure to high temperatures without losing its strength, making it an ideal choice for aerospace, automotive, and industrial applications.
Compared to standard stainless steel grades, 321 stainless flat bar offers enhanced resistance to carbide precipitation and oxidation, making it highly reliable in thermal environments. Available in a variety of stainless flat bar sizes, our product is fully customizable to meet specific project requirements. Whether you need precision cutting, surface finishing, or bulk orders, we provide high-quality solutions to suit different industrial applications.
Specifications
Category | Details |
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Material | 321 Stainless Steel (Ti-stabilized, ASTM A276/A484 compliant) |
Standard Sizes | Thickness: 0.5mm – 50mm (Custom stainless flat bar sizes available) |
Hardness | 170-220 HV (Retains strength up to 1500°F / 815°C) |
Surface Finish | Mill Finish, Polished, Brushed, Sandblasted |
Key Attributes
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Heat Resistance: Titanium stabilization prevents carbide precipitation, allowing 321 stainless flat bar to withstand cyclic heating and extreme temperature variations without structural degradation.
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Corrosion Resistance: Exceptional resistance to oxidation, acids, and thermal stress in aggressive environments.
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High Strength & Durability: Maintains mechanical properties at elevated temperatures, making it ideal for high-performance applications.
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Versatile Applications: Used in exhaust systems, heat exchangers, furnace components, and aircraft structural parts.
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Ease of Fabrication: Can be cut, welded, and machined with precision, allowing for custom stainless flat bar sizes tailored to specific project requirements.
Processing & Customization
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Cutting: We offer laser and plasma cutting services to deliver precise stainless flat bar sizes, ensuring high accuracy for manufacturing and construction projects.
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Welding Compatibility: 321 stainless flat bar is TIG and MIG welding compatible, with titanium stabilization enhancing weld integrity and reducing the risk of intergranular corrosion.
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Surface Finishing: Custom finishes, including brushed, polished, and sandblasted surfaces, are available to enhance aesthetics and durability.
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Machining & Forming: The material can be easily machined, bent, and formed to meet project-specific demands.
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Bulk Orders: Our competitive pricing model ensures cost-effective procurement for large-scale projects requiring multiple stainless flat bar sizes.
Common Applications
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Aerospace Industry: Used in aircraft exhaust systems, jet engine components, and high-temperature structural elements.
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Automotive Sector: Ideal for heat-resistant exhaust systems, turbocharger components, and high-performance engine parts.
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Industrial Furnaces & Heat Exchangers: Withstands extreme thermal conditions in chemical processing plants, power stations, and refining industries.
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Marine & Offshore Applications: Highly resistant to corrosion, making it a preferred material for shipbuilding and offshore structures.
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Manufacturing & Fabrication: Customizable stainless flat bar sizes for industrial frameworks, machine components, and mechanical structures.
Pricing & Ordering
Category | Details |
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MOQ | 300 kg (Flexible for custom stainless flat bar sizes) |
Certification | Mill Test Reports, ISO 9001, RoHS |
Delivery | Global shipping from certified stainless steel flat bar suppliers |
Why Choose Our 321 Stainless Flat Bar?
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Superior Heat Resistance: Unlike conventional stainless steel, 321 stainless flat bar retains its mechanical properties even under extreme heat, making it a top choice for demanding applications.
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Corrosion & Oxidation Protection: The titanium content ensures enhanced durability in harsh environments, resisting acids, oxidation, and stress corrosion cracking.
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Customizable Sizes & Finishes: We offer a range of stainless flat bar sizes with precision cutting, surface finishing, and coating options to match specific project needs.
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High-Quality Standards: Our materials are ASTM-compliant and undergo rigorous testing to ensure optimal performance and consistency.
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Global Supply Chain: With an extensive distribution network, we ensure fast and reliable delivery of 321 stainless flat bar worldwide.
For inquiries about custom orders, bulk pricing, or specific requirements for stainless flat bar sizes, contact us today to get a tailored solution for your project!



