Scientific name

Pterocarpus buettneri Taub.; P. Osun Craib; P. Tinctorius Welw

Other names

English: Padauk, African Padauk, Camwood, Barwood

Geographic origin

Africa

Description

&;8226; Sapwood: cream-coloured.
&;8226; Heartwood: intense rojo colour that darkens into dark grey due to light effects. It frequently has dark grey streaks.
&;8226; Fiber: Straight. Slightly intertwined fibers are very frequent.
&;8226; Grain: medium size to rough.
&;8226; Defects: white deposit bags

Capacity of being impregnated

&;8226; Sapwood: Capable of being impregnated
&;8226; Heartwood: Medium capacity of being impregnated

Mechanization

&;8226; Sawing process: Hard and with some abrasive effects.
&;8226; Drying process: Medium to low speed. Little risk of deformation and crack formation.
&;8226; Planing process: Appart from hadness and abrasability difficulties, risk of repelling is very frequent in those cases of intertwined fibers. Suitable for carving and bending
&;8226; Gluing process: Certain difficulties due to the oil content.
&;8226; Nailing and screwing process: Pre-drilling is required
&;8226; Finish: No difficulties

Physical properties

&;8226; Apparent density at 12% humidity 740 kg/m3 heavy wood
&;8226; Dimensional stability
- Volumetric contraction coefficient 0.36 % stable wood.
- Relation between contractions 1.6 no tendency to deformity
&;8226; Hardness (Chaláis-Meudon) 6.9 hardwood

Mechanical properties

&;8226; Resistance to static flexion 1,450 kg/cm2 &;8226; Elasticity module 124,000 kg/cm2
&;8226; Resistance to compression 650 kg/cm2