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Kotibe

Description

General

Origin: Tropical Africa (Angola, Ghana, Nigeria). Colour and texture:red-brown, also violet-red; smooth surface; faintly shiney. Smell: in fresh state peculiarly aromatic. Workability: good and easy to machine; good bonding by glue; good surface treatment possible (polish, stain, lacquer)Lower Heating Value 18.40 MJ

Properties

Chemical properties

Minimum value Maximum value Unit Sources
%
%

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
110 236 MPa Idemat 2003
46 76 MPa Idemat 2003
MPa
720 kg/m³ Idemat 2003
%
MPa
J/cm
MPa
65.5 172 MPa Idemat 2003
MPa
MPa
8000 13500 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
W/m.K
e-6/K

Environment

2.28 mPt
6.44 Pt
181 mELU
2.28 MJ/MJ
41 MJ
2.47 kg
0.1 kg
Kotibe 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 5748km by ship.
Idemat 1998

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