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Iroko

Description

General

Origin: Tropical Africa (Tanzania, Uganda, Angola). Colour and texture: Greyisch-yellow to light brown. Workability: good to machine, but tools blunt fast. Very durable; bonding by glue is troublesome; difficult surface treatment. Lower Heating Value 18.32 MJ

Properties

Chemical properties

Minimum value Maximum value Unit Sources
0.5 1 % Idemat 2003
%

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
V
Ohm.mm²/m

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
70 158 MPa Idemat 2003
54 81 MPa Idemat 2003
MPa
600 kg/m³ Idemat 2003
%
MPa
J/cm
MPa
55 140 MPa Idemat 2003
MPa
MPa
11000 MPa Idemat 2003

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
°C
°C
J/kg.K
0.17 0.17 W/m.K Idemat 2003
e-6/K

Environment

3.24 mPt
5.91 Pt
255 mELU
2.7 MJ/MJ
43.9 MJ
3.29 kg
0.1 kg
Iroko is dominantly imported from tropical Africa. The wood is not cultured. The deforestation of tropical wood causes serious local environmental problems and is related to the climate change in the world. The transport to the Netherlands requires 2 * 250km by trailers (from factory to forest and back) and 6803km by ship.
Idemat 1998

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