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Robust Stainless Steel 409 Sheet Plate – Industrial & Automotive Use
Robust Stainless Steel 409 Sheet Plate – Industrial & Automotive Use
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Robust Stainless Steel 409 Sheet Plate – Industrial & Automotive Use
Technical Specifications
Material Grades & Dimensions
| Grade | Thickness (mm) | Width (mm) | Length (mm) | Surface Finish | Hardness (HRB) | Applications |
|---|---|---|---|---|---|---|
| 409 | 0.5–14 | 1000–1500 | 2000–6000 | 2B, 2D, NO.1 | ≤75 | Stainless steel 409 sheet plate for automotive exhaust systems, catalytic converters, and heat-resistant industrial frameworks
1
7
9
|
| 304 | 0.3–50 | 1000–2000 | 2000–12000 | Grinding/Polishing | ≤90 | 304 grinding stainless steel sheet plate for elevator panels, decorative surfaces, and architectural cladding
2
8
|
| 316 | 1–12 | 1220–2000 | 2000–6000 | Mirror/Satin | ≤95 | Coastal infrastructure, chemical tanks, and marine hardware |
Mechanical Properties
| Property | 409 (MPa) | 304 (MPa) | 316 (MPa) |
|---|---|---|---|
| Tensile Strength | ≥450 | ≥520 | ≥515 |
| Yield Strength | ≥240 | ≥205 | ≥205 |
| Elongation (%) | ≥25 | ≥40 | ≥40 |
Detailed Technical Insights
Tensile & Bending Strength
The stainless steel 409 sheet plate excels in high-temperature environments (up to 815°C) due to its titanium stabilization, which prevents carbide precipitation and maintains structural integrity under thermal stress. With a tensile strength of ≥450 MPa and yield strength of ≥240 MPa, it outperforms aluminized steel in automotive exhaust systems by resisting exhaust gas corrosion and vibration fatigue.
For 304 grinding stainless steel sheet plate, the polished surface (e.g., 8K mirror finish) ensures minimal friction and aesthetic appeal, ideal for elevator interiors (304 stainless steel sheet plate elevator decoration) and architectural panels. Its tensile strength (≥520 MPa) supports load-bearing applications in high-rise buildings.
Weight Calculation
Use the formula to estimate the weight of stainless steel 409 sheet plate:
Example: A 2mm × 1m × 2m sheet weighs 31.72 kg.
Identification & Marking
- Laser Etching: Permanent markings include ASTM grade (e.g., "409"), manufacturer code, and batch number.
- Color Coding: Yellow for 409, silver for 304, and blue for 316 to streamline inventory management.
Why Stainless Steel Rusts
Despite its corrosion resistance, stainless steel 409 sheet plate can rust under specific conditions:
- Chloride Exposure: Coastal or industrial environments degrade the passive chromium oxide layer. Grade 316 is recommended for such conditions.
- Galvanic Corrosion: Contact with carbon steel in moist environments. Use dielectric barriers to isolate metals.
- Surface Contaminants: Organic residues (e.g., food, grease) form acidic compounds. Regular cleaning with pH-neutral agents is advised.
- Low Chromium Content: Grade 409 contains 10.5–11.7% Cr, less than 304 (18% Cr), making it more susceptible to oxidation in harsh climates.
Applications
- Automotive: Exhaust manifolds, mufflers, and catalytic converters (stainless steel 409 sheet plate).
- Architecture: 304 stainless steel sheet plate elevator decoration with mirror finishes for modern interiors.
- Industrial: Heat exchangers, transformer casings, and chemical storage tanks.
Why Choose Our Stainless Steel Products?
- Certified Quality: Compliant with ASTM A240, EN 1.4512, and ISO 9001 standards.
- Rapid Delivery: 10,000+ tons of stainless steel 409 sheet plate in stock for same-day shipping.
- Custom Solutions: Tailored dimensions (0.5–50mm thickness), surface finishes (grinding, polishing), and bulk discounts.
- Global Logistics: Strategically located near Shanghai Port, serving clients in the EU, North America, and ASEAN.
- Sustainability: 100% recyclable materials with a 30% reduced carbon footprint compared to conventional steel.
