Vitreous Enamel:
- What is Vitreous Enamel?
- Applications of Vitreous Enamel
- Physical Properties of Vitreous Enamel Steel
- Technical Properties
of Vitreous Enamel Steel - Maintenance of Vitreous Enamel Steel Surfaces
- Vitreous Enamel Steel Compared To Other Surfaces
- Manufacturing Process of Vitreous Enamel Steel
- History of Enamel
| Characteristic | Measure |
| Hardness | 5 - 7 Mohs (average 6.7 Mohs) |
| Scratch resistance | 70% remaining gloss reflection |
| Torsion resistance | 200% |
| Chemical resistance | resistant to almost all acids and salts resistant to alkaline solutions resistant to organic solutions |
| Heat resistance | up to 650°C |
| Photo-chemical resistance | to UV |
| Thermal shock resistance | more than 240°C (513 K) |
| Resistance to shock | > 20 N (1mm Ø) |
| Specific density | 2.4 - 2.8 kg/dm³ (24 - 28 N/dm³) |
| Compressive strength | 70 - 100 kg/mm² (700 - 1000 MN/m²) |
| Modulus of elasticity | 7000 kg/mm² (70 000 MN/m²) |
| Elongation of rupture | 0.2 - 0.3% |
| Bond | 7 kg/mm² |
| Surface tension | 220 - 270 dyne/cm (0.22 - 0.27 N/m) |
| Softening limit | 450 - 550°C (723 - 823 K) |
| Linear coefficient of expansion / contraction | 10 X 10^-6/°C; (1/K) |
| Specific heat | 0.2 cal/d°C (0.84 kJ/kgK) |
| Coefficient of heat conduction | 0.002 cal/cm sec °C (0.84 W/Km) |
| Scattering reflection | up to 85% depending on type / colour |
| General reflection | up to 93% |
| Diffuse reflectance (white) | up to 88% |
| Rigidity | ± 3 x original steel sheet |
| Electrical properties | vitreous enamels are non-conductors break-down voltage = 25 kv/mm di-electric constant = 5 - 12 |