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standard name: merbau

 
 

Heavy Hardwood, similar to Ipil of the Philippines and Afzelia of Africa

 
       
       

Botanical Name

Intsia palembanica, I. bijuga

   

Family

Leguminosae

   

Distribution

Widely distributed, mainly in the lowland areas and along rivers.

   

General Description

Sapwood is well-defined and pale yellow in colour. Heartwood is yellowish to orangebrown when fresh, weathering to brown or dark red-brown.

Grain is interlocked.

Texture is coarse but even.

Growth rings are fairly distinct.

Vessels are moderately large to very large and with simple perforations, very few or few, mainly solitary and occasionally radial pairs and multiples of 3 can be seen; evenly scattered without any arrangement, frequently filled with dark-coloured and sulphur yellow deposits.

Both apotracheal and paratracheal parenchyma are present. Apotracheal parenchyma appears as irregularly spaced terminal bands while paratracheal parenchyma appears as aliform borders around the vessels.

Rays are moderately fine and may be visible on the end and tangential surfaces.

   

Physical Property

Air-Dry Density:

515 - 1,040 kg/m3

Radial Shrinkage:

0.9 %

Tangential Shrinkage:

1.6 %

Seasoning:

Dries rather slowly without any degrade

Rec. Kiln Schedule:

n.a.

   

Mechanical Properties

Strength Group:

B

Static Bending MOE:

15,400 N/mm2

Static Bending MOR:

116 N/mm2

Compression Strength

 

   Perpendicular to Grain:

9.17 N/mm2

   Parallel to Grain:

58.20 N/mm2

Shear Strength:

12.50 N/mm2

   

Durability

Durable

   

Treatability

Very Difficult

   

Working Properties

Planing: Slightly difficult, Finish: Smooth

Boring: Easy, Finish: Smooth

Turning: Easy, Finish: Smooth

Nailing: Very poor

   

Uses

The growth ring figure and deep colour makes it an attractive wood for decorative work including interior finishing, panelling, strip and parquet flooring, superior joinery, cabinet-making, door and window frames, furniture, veneer, turnery and tool handles.

   

 

source from Malaysian Timber Council

   
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