Hardboard HB.HLA2
symbolic image
- abbreviation: HB, HB.HLA2
- German: Harte Faserplatte
- German: Hartfaserplatte
- English: Hardboard
- Characteristic Values of wood based panels are 5-percentiles for strength values (f) and mean values for elastic properties (E, G). If necessary the 5-percentile values of the elastic properties can be calculated as 0.85 times the specified mean values.
- Indices are given in the following way:
- 1st index: indicates bending, tension, compression, shear or rolling shear as “m”, “t”, “c”, “v” or “r”
- 2nd index: indicates orientation of stress to grain direction of outermost layers/veneers as “0” or”90”, if relevant
- 3rd index: indicates, if in plane or out of plane; in plane is given as “edge”, out of plane is given as “flat” only in the case of stresses perpendicular to the grain and shear
- 4th index: indicates characteristic “k” or mean value “mean”
Physical Properties
| Name | Value | Remark | Method and conditions |
|---|---|---|---|
| density | 850 kg/m³ | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA |
| 800 kg/m³ | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA | |
| Mechanical properties | |||
| compressive strength | 12 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[c,flat,k] (perpendicular to plane) |
| 27 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[c,edge,k] (in plane) | |
| 12 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[c,flat,k] (perpendicular to plane) | |
| 24 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[c,edge,k] (in plane) | |
| flexural modulus of elasticity | 4800 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, E[m,flat,mean] (perpendicular to plane) |
| 4800 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, E[m,edge,mean] (in plane) | |
| 4600 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, E[m,flat,mean] (perpendicular to plane) | |
| 4600 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, E[m,edge,mean] (in plane) | |
| flexural strength | 35 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[m,k] (perpendicular to plane) |
| 26 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[m,edge,k] (in plane) | |
| 32 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[m,k] (perpendicular to plane) | |
| 23 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[m,edge,k] (in plane) | |
| shear modulus | 2000 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, G[edge,mean] (perpendicular to plane) |
| 200 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, G[flat,mean] (in plane) | |
| 1900 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, G[edge,mean] (perpendicular to plane) | |
| 200 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, G[flat,mean] (in plane) | |
| shear strength | 18 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[v,edge,k] (perpendicular to plane) |
| 3 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[v,flat,k] (in plane) | |
| 16 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[v,edge,k] (perpendicular to plane) | |
| 2.5 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[v,flat,k] (in plane) | |
| tensile strength | 26 MPa | nominal thickness: > 3.5mm – 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[t,k] |
| 23 MPa | nominal thickness: > 5.5mm | DIN EN 622-2; DIN EN 622-3; DIN EN 1995-1-1/NA, f[t,k] | |
Data Provided by
Institut für Holztechnologie Dresden gemeinnützige GmbH
Institut für Holztechnologie Dresden gemeinnützige GmbH Steffen Tobisch
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