Species: Alan-batu


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Alan-batu
Species profile
The wood is red brown with clearly demarcated sapwood. Possible brittleheart and sometimes presence of white streaks (resin canals). The grain is straight or interlocked and the texture is medium. Density at 12 % moisture content: 0.80 g/cm3.

The blunting effect is fairly high and peeling and slicing is not recommended or without interest. Nailing is good but pre-boring is necessary. Risk of splitting in nailing. Gluing is correct. Resin may clog the tools and may have a blunting effect. Filling is recommended to obtain a good finish. Drying rate is normal and thin stocks must be dried with care to prevent distortions.

Alan Batu is moderately durable to fungi and it is durable to dry wood borers; sapwood demarcated (risk limited to sapwood).

This exclusive species is used for several purposes such as:
• interior: e.g. flooring, furniture, panelling and joinery , industrial or heavy flooring
• exterior: e.g. flooring, ship building, joinery, panelling, vehicle or container flooring

References
• CIRAD Forestry Department

Family:DIPTEROCARPACEAE (angiosperm)
Origin:Asia and Oceania
Local and common name(s)
Alan Batu is the commercial name of heavy Shorea albida. Alan Bunga is the commercial name of lighter Shorea albida.

Alan-Batu, Alan-Bunga, Alan-Paya, Alan-Paya, Red Selangan, Alan-Meraka, Selangan Merah, Meraka,
Scientific name(s)
Shorea Albida,
Typical use
Industrial or heavy flooring, Vehicle or container flooring, Exterior joinery, Interior panelling, Current furniture or furniture components, Flooring, Ship building (ribs), Interior joinery, Exterior panelling,
Risk
Commercial restriction:No commercial restriction
IUCN Red List status:
Appearance
Grain:Straigth or interlocked
Interlocked Grain:Slight
Sapwood:Clearly demarcated
Texture:Medium
Typical colour:Red Brown
Physical description
Crushing strength:57 MPa
Specific Gravity (at 12% MC):0,80
Stability:Moderately stable to poorly stable
Static bending strength:103 MPa
Strength class:
Durability
Dry wood borers:Class D - Durable
Fungi:Class 3 - Moderately durable
Termites:Class S - Susceptible
Treatability:Class 4 - Not permeable
References
Technical descriptions from the software Tropix 7 [1], with permission of the Research Unit Biomass, Wood, Energy, Bioproducts [2], CIRAD [3].

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