Kungkur


INTRODUCTION

The Standard Malaysian Name for the timber of Albizia splendens (syn.: Pithecellobium splendens) (Leguminosae). Vernacular name for the timber is kungkur throughout the country. The sapwood is white or light brown in colour and is sharply defined from the heartwood, which is light red-brown and darkens on exposure to a deep shade of brown.


DENSITY

The timber is a Light Hardwood with a density of 465-850 kg/m3 air dry.


NATURAL DURABILITY

The timber is moderately durable under exposed conditions and the sapwood is highly susceptible to powder-post beetle attacks.


PRESERVATIVE TREATMENT

The timber is moderately difficult to difficult to treat with preservatives.


TEXTURE

Texture is moderately coarse but even, with slightly interlocked and sometimes wavy grain.


STRENGTH PROPERTIES

The timber falls into Strength Group C (Engku, 1988b) or SG 5 (MS 544:Part 2:2001).


MACHINING PROPERTIES

It is easy to resaw and cross-cut. Planing is easy and the planed surface is smooth and lustrous.


NAILING PROPERTY

Nailing property is rated as good.


AIR DRYING

The timber seasons fairly slowly with only slight end-checking and splitting and moderate insect attacks as the main sources of degrade. 13 mm thick boards take 3.5 months to air dry, while 38 mm thick boards take 4.5 months.


SHRINKAGE

Shrinkage is extremely low. Radial shrinkage averages 0.6% while tangential shrinkage averages 0.9%.


MOVEMENT IN SERVICE

The movement of seasoned timber is classified under Type III.


USES

The timber is suitable for furniture manufacture, high-class cabinet work, interior finishing, panelling, mouldings, partitioning, carving, ornamental items, posts, beams, joists, rafters, railway sleepers, door and window frames and sills, plywood, staircase (angle blocks, rough brackets and balustrades) and flooring.


REFERENCES

  1. Engku Abdul Rahman Chik. 1998b. Basic and Grade Stresses for Strength Groups of Malaysian Timbers. Malayan Forest Service Trade Leaflet No. 38. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 13 pp.
  2. Menon, P. K. B. 1986. Uses of Some Malaysian Timbers. Revised by Lim, S. C. Timber Trade Leaflet No. 31. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 48 pp.
  3. MS 544:Part 2:2001. Code of Practice for the Structural Use of Timber: Permissible Stress Design of Solid Timber.
  4. Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Records No. 30. Forest Research Institute Malaysia, Kuala Lumpur. 201 pp.