The common Malaysian name for the timber of Chaetocarpus castanocarpus (Euphorbiaceae). The ASEAN Standard Name for the timber, which is of Indonesia origin, is KAYU BESI. Vernacular names applied include bedik (Peninsular Malaysia), dusun-dusun (Sabah) and kayu dusun (Sabah). Only one species is recorded for this region. The sapwood is not differentiated from the heartwood, which is rose-brown.
Also known as Kayu besi (Indonesia); Bok khay (Laos); A kaang, Khe-non and Samphao (Thailand); and Cay lo le, Chimas and Co kei (Vietnam).
The timber is hard and heavy with a density of 610-1,040 kg/m3 air dry.
The timber is reported to be non-durable.
Texture is moderately fine and even, with straight or interlocked grain.
Since the timber is non-siliceous, it is probably easy to work despite its hardness.
The timber has been reported to be used for tool handles and temporary construction.
Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Record No. 30. Forest Research Institute Malaysia Kuala Lumpur. 201 pp.