MECHANICAL CHARACTERISTICS OF COMMONLY USED RAW BLOCKBOARD
|
Technical Characteristics
|
Methodological Standards
|
Unit of Measure
|
14 - 16 mm
|
17 - 21 mm
|
22
- 30 mm
|
Density
|
EN
323
|
Kg/m3
|
520
|
495
|
480
|
Adhesive Grade
|
EN
6476
|
|
>8
|
>8
|
>8
|
Bending Strenght,
Longitudinal
|
EN 310
|
MPa
|
31
|
29
|
25
|
Bending Strenght,
Lateral
|
EN 310
|
MPa
|
27
|
19
|
19
|
Modulus of Elasticity in Longitudinal Bending
|
EN 310
|
MPa
|
4300
|
4150
|
4100
|
Modulus of Elasticity in Lateral Bending
|
EN 310
|
MPa
|
3400
|
3100
|
3100
|
Axial
Witdrawal of the Screws from the Face
|
EN 320
|
N
|
1150
|
1150
|
1150
|
Axial
Witdrawal of the Screws from the Longitudinal Edge
|
EN 320
|
N
|
700
|
600
|
600
|
Axial
Witdrawal of the Screws from the Lateral Edge
|
EN 320
|
N
|
1200
|
1000
|
1000
|
Surface Hardness
|
EN
3350
|
N
|
1800
|
1800
|
1800
|