Board Composition
Durasteel is a mechanically-bonded 9.5mm thick composite panel of fibre-reinforced cement core (A) and punched steel sheets on both sides (B). The steel sheets are pre-punched and pressed into the core during the manufacturing process, creating a unique, durable and high strength composite panel that provides high-performance fire, blast, impact and moisture resistance properties. Durasteel is classed as ‘noncombustible’ to BS 476: Part 4: 1970 and to Clause 10 of EN 13501-1: 2002.
Durasteel is available in both galvanised and stainless steel finishes.
CHARACTERISTICS OVERVIEW |
|
| Weight | 22.0 kg/m² |
STRENGTH |
|
| Flexural Strength (425mm span) | 65 N/mm² |
| Apparent Modules of Elasticity (425mm span) | 30.9 kN/mm² |
| Impact Strength (BS 5669: Part 1) | 44.15 J |
| Impact (Withstand) | 4000 J |
| Impact Resistant (Projectile) | 2793 J |
MOISTURE |
|
| Natural Moisture Content by Weight | 7-8% |
THERMAL |
|
| Thermal Conductivity at 20 degrees Celsius (BS 874) | 0.55 W/Mk |
| Radiant Heat Reduction through Panels | 9.30 to 2.53 Km/m² |
ACOUSTIC |
|
| Sound Reduction Index | 7-8% |
FIRE |
|
| Non-Combustible to BS 476 parts 4 & 11 | Non-Combustible |
| Building Regulation Classification | Class 0 |
GENERAL TECHNICAL DATA |
|
| Material class | Non-Combustible |
| Surface spread of flame | Class 1 |
| Building Regulations classification | Class 0 |
| Alkalinity (approximately) pH (core) | 10-13 |
| Thermal conductance (approximately) at 20°C W/m²K |
60
|
| Coefficient of expansion (20-100°C) m/mK | 15 x 10-6 |
| Nominal moisture content (air-dried) % | 6 |
| Moisture movement (ambient to saturated) % | – |
| Thickness tolerance of standard boards | +1.0 to -1.0 |
| Length x Width tolerance of standard boards mm | ±2.0 |
Share/Like this page