Sucupira
Scientific name:
Diplotropis purpurea Amsh.
Geographic origin:
South America
- Sapwood: greyish white to yellowish white.
- Heartwood: dark grey to reddish grey.
- Fiber: Straight, frequently intertwined.
- Grain: medium size
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Capacity of being impregnated
- Sapwood: Medium capacity of being impregnated
- Heartwood: No capable of being impregnated
Mechanical properties
- Resistance to static flexion 1,400 g/cm2
- Elasticity module 180,000 kg/cm2
- Resistance to compression 850 kg/cm2
Mechanization
- Sawing process: Common difficulties arise from hardness and abrasability
- Drying process: Medium to high speed. Low risk of deformation and crack formation.
- Planing process: Difficuties due to hardness, abrasability and risk of repelling on pieces of intertwined fibers. Slow mechanisation is recommended
- Gluing process: Tannins hamper proper adherence.
- Nailing and screwing process: pre-drilling is recommended due to hardness.
- Finish: No particular difficulties arise
Physical properties
- Apparent density at 12% humidity 910 kg/m3 very heavy wood
- Dimensional stability
- - Volumetric contraction coefficient 0.44 % varies from stable wood to nervous wood
- - Relation between contractions 1.5% no tendency to deformity
- Hardness (Chaláis-Meudon) 8.3 very hard wood
Observations
Sucupira
