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Technical Specifications
Product Overview
304-#8 (Mirrored) Stainless Steel Sheet is manufactured from premium grade 304 stainless steel with a highly polished mirror finish. This austenitic stainless steel sheet offers exceptional corrosion resistance combined with superior aesthetic appeal, making it ideal for decorative and high-end applications.
Key Features:
- Exceptional mirror finish with 95%+ reflectivity
- Excellent corrosion resistance in various environments
- Superior formability and fabrication properties
- Non-magnetic in annealed condition
- Easy to clean and maintain surface
- FDA approved for food contact applications
Manufacturing Process: Cold rolled and annealed stainless steel sheet undergoes progressive polishing stages using specialized abrasives, followed by final mirror polishing to achieve #8 finish with protective film application.
Applications: Architectural facades, elevator interiors, kitchen equipment, decorative panels, automotive trim, appliance manufacturing, food processing equipment, pharmaceutical equipment, and high-end interior design applications.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM A240 Requirement |
|---|---|---|---|---|
| Carbon (C) | - | 0.080 | 0.045 | ≤ 0.08 |
| Chromium (Cr) | 18.0 | 20.0 | 18.5 | 18.0-20.0 |
| Nickel (Ni) | 8.0 | 12.0 | 9.2 | 8.0-12.0 |
| Manganese (Mn) | - | 2.00 | 1.45 | ≤ 2.00 |
| Silicon (Si) | - | 0.75 | 0.42 | ≤ 0.75 |
| Phosphorus (P) | - | 0.045 | 0.028 | ≤ 0.045 |
| Sulfur (S) | - | 0.030 | 0.015 | ≤ 0.030 |
| Nitrogen (N) | - | 0.10 | 0.06 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | 70.1 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 515 MPa min | 580 MPa | ASTM A370 | Room Temp |
| Yield Strength (0.2%) | 205 MPa min | 240 MPa | ASTM A370 | Room Temp |
| Elongation | 40% min | 50% | ASTM A370 | Room Temp |
| Hardness (Brinell) | 201 HB max | 170 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | 92 HRB max | 85 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | - | 300+ J | ASTM E23 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 8.00 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1400-1450 | °C | - | DSC Analysis |
| Thermal Conductivity | 16.2 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 500 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 17.2 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 720 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | 1.02 | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | None | - | - | Non-magnetic |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Thickness | 0.3mm - 6.0mm | 1.0mm, 1.5mm, 2.0mm | Yes | ±0.05mm |
| Width | 600mm - 2000mm | 1219mm, 1500mm | Yes | ±3mm |
| Length | 2000mm - 6000mm | 2438mm, 3048mm | Yes | ±5mm |
| Surface Finish | #8 Mirror Polish | #8 Mirror | No | Ra ≤ 0.1μm |
| Flatness | ≤ 2mm/m | ≤ 1.5mm/m | Better available | ASTM A480 |
| Edge Condition | Mill Edge, Slit Edge | Mill Edge | Yes | ASTM A480 |
| Standards Compliance | ASTM A240, A480 | A240/A480 | Multiple | Full compliance |
| Reflectivity | ?Y 95% | 96-98% | Higher grade | ASTM E903 |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Wooden Crates, PE Film | PE + Wooden | Custom | Export standard |
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Our Advantages in Processing 304-#8 แผ่นสแตนเลสที่สะท้อน
Advanced Mirror Polishing Process
Utilizing state-of-the-art buffing and polishing techniques to achieve the #8 mirror finish, resulting in a highly reflective surface with exceptional smoothness and minimal optical distortion. This precise manufacturing process ensures consistent surface quality across large sheets.
304 Grade Steel Processing
Specialized manufacturing process for 304-grade stainless steel that optimizes chromium-nickel content during production, enhancing corrosion resistance and durability while maintaining excellent formability for diverse applications.
Surface Finishing Control
Rigorous quality control during the mirroring process, incorporating multiple stages of progressive polishing and surface treatment to achieve maximum reflectivity while maintaining the material's structural integrity and preventing surface imperfections.
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