Search for

Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Family Name Gluing Grain Natural Durability Numerical Data Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Scientific Name Strength Properties Synonyms Texture Trade Name Tree Size Scientific Name Timonius wallichianus Trade Name Berombong Family Name Rubiaceae Synonyms Timonius rumphii Common Names Berombong, Jantan, Merombong, Tabah, Tentulang, Timonius, Tulang-tulang Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Australia, Malaysia Common Uses Fuelwood, Heavy construction, Light construction, Posts Grain Even Figure Straight Distinct (figure) Straight Distinct figure Texture Coarse Natural Durability Perishable Susceptible to insect attack Non-durable Non-resistant to termites Non-resistant to marine borers Resistant to powder post beetles Resistant to wood staining fungal attack Resistant to attack from powder post (Lyctid & Bostrychid) beetles Drying Defects Moderate end spitting Tree Size Tree height is 20-30 m Blunting Effect Little Cutting Resistance Fairly Difficult to Very Difficult to saw Gluing Fairly Difficult to Very Difficult Planing Fairly Difficult to Very Difficult Fairly Easy to Very Easy Resistance to Impregnation Resistant heartwood Resistant sapwood Response to Hand Tools Fairly Difficult to Difficult to Work Polishing Fair to Good Results Strength Properties Shearing strength (parallel to grain) = very low Max. crushing strength = low Hardness (side grain) = soft Bending strength (MOR) = low Numerical Data Item Green Dry English Bending Strength 6111 9589 psi Hardness 995 lbs Maximum Crushing Strength 2139 3916 psi Shearing Strength 882 psi Item Green Dry Metric Bending Strength 429 674 kg/cm2 Hardness 451 kg Maximum Crushing Strength 150 275 kg/cm2 References Bolza, E., Kloot, N.H.,1963,The Mechanical Properties of 174 Australian Timbers,C.S.I.R.O. Division of Forest Products Technological Paper,No.25 Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15