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BUCHANANIA (Buchanania macrocarpa)

Trade Name

Buchanania

Scientific Name

Buchanania macrocarpa Lauterb.

Family

ANACARDIACEAE

Common Names

Bengen (Indonesia); Klobum (Indonesia); Inaandoi (Indonesia)

Scientific Name Synonyms

Buchanania montana Lauterb; Buchanania mollis Lauterb.

Description Of The Tree

Botanical Description

The bole is cylindrical, straight with buttresses rarely present.

Natural Habitat

This species grows in lowland forests up to 500 m of altitude by the river banks.

Natural Distribution

It is widespread throughout South-east Asia and New Guinea to Solomon Islands.

Non Timber Uses

The sawdust of this species may cause dermatitis.

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Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Occasionally tangential diameter of vessel lumina 200 micras or more. Occasionally tyloses common. Vessels per mm2 5 to 20. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits coarse in marginal rows. Intervessel p Paratracheal axial parenchyma scanty and/or vasicentric. Two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Occasionally larger rays more than 4 seriate. Occasionally silica bodies in the ray cells. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Occasionally body ray cells procumbent with over 4 rows Septate fibers present. Fibers very thin walled. Fibers with simple to minutely bordered pits.

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

Availability

Cites Status

Unrestricted

General Wood Description

Color

The sapwood is not clearly defined, white to pale pink. The heartwood ranges from pinkish-brown or gray-brown.

COLOR INDEX (1=Black, 7=Light yellow,white)

6

Grain

The grain is straight or slightly interlocked.

Texture

The texture is fine to moderately fine and even.

Luster

It is reported to be low in luster.

Natural Durability

The wood is non-durable when exposed to weather or in contact with the ground. This timber is susceptible to termite and marine borer attack. No pinhole borer damage is likely to occur.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Silica Content

Silica Content: Silica is absent. Silica Value: 0

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.48

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.52

Total shrinkage Tangential (Saturated to 0%MC) (%)

7.3

Total shrinkage Radial (Saturated to 0%MC) (%)

4.1

Drying Defects

Drying Defects: Some species of Kandis are prone to checking and warping. Quarter sawing is recommended to reduce degrade. Kiln Schedules: Schedule recommended for Kandis.

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

1.8

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

510

Stiffness (MOE) 12%MC (kgf/cm²)

81969

Compression parallel to fiber 12%MC (kgf/cm²)

288

Shear strength radial 12%MC (kgf/cm²)

66

Janka hardness (side) 12%MC (kgf)

125

Workability

Machining

It is easy to machine.

Planing

It is easy to plane.

Turning

30

Finishing

Finishing of this wood is easy.

Response To Hand Tools

The wood responds well to hand tools.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, boards, frames, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, TURNING, cutlery, PACKING, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, cigar boxes, matches, moldings

General Housing
  • 10 - Silica in Timbers
Boards
  • 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Frames
  • 16 - Woods of the World
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Turning
  • 30 - Embassy of Honduras in Japan
Knife Handles
  • 33 - Embassy of Gabon in Japan
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Shipbuilding
  • 55 - Tropical Timber Atlas of Latin America
Cigar Box
  • 68 - Contribucion al conocimiento de la resistencia mecanica de la madera de peumo
Matches
  • 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão

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