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Durasteel Composition

Durasteel is a composite panel of fibre reinforced cement (A) mechanically bonded to punched steel sheets (B) on both outer surfaces. It is classified as non-combustible to BS 476: Part 4: 1970 and A1 to Clause 10 of BS EN 13501-1:2002.

View Durasteel Technical Details

Durasteel Exploded

CHARACTERISTICS OVERVIEW

9.5mm Durasteel Panel
Weight
20.0 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