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NOGAL TROPICAL (Juglans spp)
Trade Name
Nogal tropical
Scientific Name
Juglans spp.
Family
JUGLANDACEAE
Common Names
Nogal, Tropical; Nogal (Peru)
Description Of The Tree
Botanical Description
Juglans includes deciduous trees without buttresses, up to 30 m tall.
Natural Habitat
Juglans trees are distributed in the subtropical and temperate montane forests of Central and South America.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 150 to 200 micras (medium). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. I Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma in discontinuous tangential lines. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Fibers with distinctly bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
Heartwood of timbers in this species is reported to vary in color from dark gray brown with a pink tinge, to dark brown or reddish brown with fine veins. It is less pronounced than European and Asian Juglans.
COLOR INDEX (1=Black, 7=Light yellow,white)
3
Grain
The grain is frequently straight.
Texture
The wood has a medium texture.
Natural durability index (1= Very high durability, 7=Vey low durability)
3
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.56
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.61
Total shrinkage Tangential (Saturated to 0%MC) (%)
5.2
Total shrinkage Radial (Saturated to 0%MC) (%)
2.7
Recommended Dry Kiln Schedule
UK-F; US-T6-D4
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.9
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
510
Stiffness (MOE) 12%MC (kgf/cm²)
71636
Compression parallel to fiber 12%MC (kgf/cm²)
367
Workability
Sawing
Sawing of this species is easy.
Rotary Veneer Cutting
Juglans is interesting for peeling and slicing. Veneer is reported to be slow to dry.
Sliced Veneer
Juglans is interesting for peeling and slicing. Veneer is reported to be slow to dry.
Blunting Effect
It has a slight blunting effect on the cutting tools.
Planing
Planing operations are rather easy.
Turning
30
Nailing
Good nail-holding properties.
Polishing
It is easy to polish.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING
General Housing
- 10 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
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