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MAHANG (Macaranga hypoleuca)
Trade Name
Mahang
Scientific Name
Macaranga hypoleuca (Rchb. F.&Zoll.) Mull. Arg.
Family
EUPHORBIACEAE
Common Names
Law (Thailand); Sedaman puteh (Malaysia); Sedaman (Malaysia); Mahang puteh (Malaysia); Mahang kapur (Indonesia); White mahang
Description Of The Tree
Botanical Description
It is an evergreen, dioecious, small to medium-sized tree up to 30 m tall. The bole is straight, up to 50 cm in diameter, occasionally with stilt roots, rarely with buttresses.
Natural Habitat
Macaranga is usually a common element of secondary forests.
Non Timber Uses
Medicinal properties are reported, probably due to the tannin content.
Wood Identification
Anatomic Description Of Wood
Vessels in radial multiples of 4 or more common. Tangential diameter of vessel lumina 100 micras or less (very small). Tyloses common. Axial parenchyma in narrow bands on lines up to 3 cells wide.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood varies from pale yellow-brown to pale brown or gray-brown, sometimes with a pinkish tinge, not clearly differentiated from the sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
The grain is straight or slightly interlocked.
Texture
The texture is moderately fine to moderately coarse and even.
Luster
The planed surfaces are lustrous.
Natural Durability
This species is rated as non-durable, but it is moderately resistant to dry-wood termites.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
The timber is treatable with preservatives.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.34
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.36
Total shrinkage Tangential (Saturated to 0%MC) (%)
3.4
Total shrinkage Radial (Saturated to 0%MC) (%)
1.4
Drying Defects
Ease of Drying: Air seasoning is reported to be with little degrade.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.4
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
438
Stiffness (MOE) 12%MC (kgf/cm²)
57675
Compression parallel to fiber 12%MC (kgf/cm²)
234
Workability
Rotary Veneer Cutting
This species is reported to have good characteristics for lamination.
Sliced Veneer
This species is reported to have good characteristics for lamination.
Machining
It is very easy to work but somewhat fibrous.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, frames, PACKING, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, shoes, matches, shingle, moldings, particleboard
General Housing
- 10 - Silica in Timbers
Frames
- 16 - Woods of the World
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Shoes
- 70 - Proprietes physiques et mecaniques des bois tropicaux de l`union francaise
Matches
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Shingles
- 77 - Amazonian Timbers, Characteristics and Utilization Volume I; Tapajós National Forest
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Particleboard
- 80 - Estudio Integral de la Madera para Construcción
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