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Extreme-Environment Stainless Steel 409 Sheet Plate | Corrosion-Resistant
Extreme-Environment Stainless Steel 409 Sheet Plate | Corrosion-Resistant
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Extreme-Environment Stainless Steel 409 Sheet Plate | Corrosion-Resistant
Product Specifications
| Property | Details |
|---|---|
| Material Standard | ASTM A268, EN 1.4512, JIS SUS409 |
| Thickness | 0.5 mm – 6.0 mm (customizable) |
| Width | 1000 mm – 2000 mm |
| Length | 2000 mm – 6000 mm |
| Surface Finish | 2B (Cold-rolled), No.1 (Hot-rolled), Brushed, Embossed, Patterned |
| Hardness (Rockwell B) | ≤95 HRB (母材) / ≤207 HB (Brinell) |
| Yield Strength | ≥170 MPa (25 ksi) |
| Tensile Strength | ≥380 MPa (55 ksi) |
| Elongation | ≥20% (in 50 mm) |
Key Attributes & Processing
| Category | Description |
|---|---|
| Chemical Composition | Low carbon (≤0.035% C), 10.5–11.7% Cr, stabilized with Ti/Nb for enhanced corrosion resistance . |
| Heat Treatment | Ferritic structure; cannot be hardened by heat treatment but improved via cold-working . |
| Weldability | Suitable for laser welding (low heat input) with minimal HAZ grain growth . |
| Magnetic Properties | Magnetic due to ferritic microstructure. |
Performance Highlights
Tensile Strength
The stainless steel 409 sheet plate exhibits a tensile strength of ≥380 MPa, ensuring structural integrity under high stress. This makes it ideal for automotive exhaust systems, where thermal cycling and mechanical vibrations are common. Laser-welded joints of AISI 409 tubes demonstrate tensile strengths up to 504 MPa (matching base metal performance), confirming its reliability in critical applications.
Bending Strength
With excellent ductility (≥20% elongation), stainless steel 409 sheet plate can withstand deep drawing and cold-forming processes without cracking. Its ferritic structure provides uniform deformation resistance, making it suitable for mufflers, catalytic converters, and structural supports.
Identification & Marking
Our plates comply with international standards:
- ASTM A268 TP409L: Identified by low carbon content (≤0.035% C) and titanium stabilization.
- EN 1.4512: Includes dual stabilization (Ti + Nb) for improved intergranular corrosion resistance.
Weight Calculation
Calculate plate weight using the formula:
Example: A 3 mm × 1500 mm × 3000 mm plate weighs .
Corrosion Resistance & Rust Prevention
While stainless steel 409 sheet plate offers good oxidation resistance, localized corrosion may occur in aggressive environments:
- Chloride Exposure: Chloride ions (e.g., seawater, de-icing salts) can penetrate the passive chromium oxide layer, causing pitting .
- Mechanical Damage: Scratches or abrasions expose the iron matrix to oxidation, leading to surface rust .
- High-Temperature Degradation: Prolonged exposure above 800°C may destabilize the oxide film .
For harsher conditions, consider 304 grinding stainless steel sheet plate (higher Cr/Ni content) or 316 stainless steel sheet plate (Mo-enhanced for marine environments).
Why Choose Our Stainless Steel 409 Sheet Plate?
- Superior Quality Control: Direct production from ISO-certified mills in Wuxi, China, ensures strict adherence to ASTM/EN standards .
- Customization Flexibility: Tailor thickness, width, and surface finish for automotive, construction, or industrial applications.
- Competitive Pricing: Factory-direct sales eliminate intermediaries, offering cost savings for bulk orders .
- Fast Logistics: Nationwide and global shipping with real-time tracking ensures timely delivery .
- Technical Support: Expert guidance on welding, forming, and corrosion prevention tailored to your project needs.
