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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.

  • Wood Macro Photo Tangential Plane
  • Wood Micro Photo Of Transversal Section

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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