304 Stainless Steel Mirror Sheet - 8K Finish
High-quality 304 stainless steel sheets with ASTM A240 2B specification, featuring superior mirror finish and excellent corrosion resistance.
Surface Treatments and Characteristics
| Surface Finish |
Characteristics and Applications |
| NO.2B |
Better brightness and flatness than NO.2D, with improved mechanical properties for comprehensive applications |
| NO.1 |
Heat treatment and pickling finish after hot rolling process |
| NO.4 |
Polished with #150-#180 grit abrasive belt, used for bathtubs, building ornaments, appliances, and food processing equipment |
| HL |
Continuous streak finish on NO.4 base, ideal for building decorations, elevators, doors, and frontal plates |
| BA |
Bright annealed with excellent mirror-like reflectivity, perfect for kitchen apparatus and decorative applications |
| 8K |
Premium mirror finish with excellent brightness and superior reflectivity |
Chemical Composition
Carbon (C): ≤0.08% | Silicon (Si): ≤1.0% | Manganese (Mn): ≤2.0%
Chromium (Cr): 18.0-20.0% | Nickel (Ni): 8.0-10.0%
Sulfur (S): ≤0.03% | Phosphorus (P): ≤0.045%
Physical and Mechanical Properties
| Property |
Value |
Property |
Value |
| Tensile Strength |
≥520 MPa |
Specific Heat Capacity |
0.50 KJ/kg·K |
| Yield Strength |
≥205 MPa |
Thermal Conductivity |
16.3-21.5 W/m·K |
| Elongation |
≥40% |
Linear Expansion Coefficient |
17.2-18.4 ×10⁻⁶/K |
| Section Shrinkage |
≥60% |
Resistivity |
0.73 ×10⁻⁶ Ω·m |
| Hardness |
≤187 HB, ≤90 HRB, ≤200 HV |
Elastic Modulus |
193 KN/mm² |
| Melting Point |
1398-1454°C |
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Corrosion Resistance
Stainless steel 304 offers excellent resistance to corrosion and staining with low maintenance requirements. The material's natural luster makes it ideal for applications requiring both durability and aesthetic appeal. It can be steam-cleaned and sterilized without needing additional surface finishes.
Applications
- Food preparation equipment in chloride environments
- Chemical processing equipment
- Laboratory benches and equipment
- Rubber, plastics, pulp & paper machinery
- Pollution control equipment
- Boat fittings, valves and pump trim
- Commercial kitchens and food processing plants
- Automotive and construction materials
- Medical instruments and surgical equipment
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