Name | Ajunao |
Scientific name | Pterogyne nitens – Tul |
Family | LEG. CAESALPINIOIDEAE |
Common names in other countries | Peroba rosa; Amendion (USA); Zalmhout (Bel); Vivaro (Arg); Pau fava (Bra); Sotillo; Tipa colorada; Ybyraro (Par) |
General description | Ajunao grows in dry to moderately moist forests. The tree grows up to 25 meters high. The trunk is straight and cylindrical. |
Anatomic Characteristics
Heartwood color | Reddish brown |
Sapwood color | Yellowish brown |
Texture | Medium-fine |
Physical properties
Density (12% M.C.) | 840 kg/m3 |
Basic density | 680 kg/m3 |
Total radial shrinkage | 4,6% |
Total tangential shrinkage | 6,5% |
Total volumetric shrinkage | 11,2% |
Rate T/R | 1,4 |
Mechanical properties 12% M.C.
Static bending | 972 kg/cm2 |
Compression parallel to grain | 510 kg/cm2 |
Lateral hardness (Janka) | 7700N kg |
Technical conditions for processing
Machining | Good |
Air drying | Slow |
Natural durability | Durable |
Permeability | Impermeable |