Technology Newsflash

The term ‘Lesser Known Species’ and its related variants such as ‘Lesser Utilised Species’, and ‘Under Utilised Species’ have been around for as far as we can remember. But if you ask anybody as to what constitute these so-called Lesser Known Species, you will have a different answer every time. This is because everybody has his own interpretation of what is a Lesser Known Species.
Specifications of Popular Malaysian Timber : Mechanical Properties Print E-mail
Written by Administrator   
Monday, 04 August 2008 06:01
Name Botanical Name Strength Group Static Bending Compression Strength Shear Strength N/mm2
MOE N/mm2 MOR N/mm2 Perpendicular N/mm2 Parallel N/mm2
LIGHT HARDWOOD
Melantai Shorea macroptera C 7,900 46 2.21 24.5 6.3
Kungkur Pithecellobium spp. B 10,700 89 6.62 44.1 12.8
Kembang Semangkuk Scaphium spp. C 15.3K - 17K 92-93 n.a. 50.2-52 9.1-10.1
Medang Spp. of Lauraceae C 10.1K - 12.6K 64 - 93 3.19 34.2 - 52.1 7.5 - 7.7
Melunak Pentace spp. C 2,000 85 4.28 43.6 10.8
Kedondong Spp. of Burseraceae C 12.1K - 12.9K 81 6.41 43.1 - 43.7 10.9 - 11.8
Jelutong Dyera spp. D 8,100 50 2.65 27.0 5.8
Machang Mangifera spp. C 7.5K - 14.8K 57 - 90 6.14 32.1 - 48.2 12.2 - 13.1
Ramin Gonystylus spp. C 12K - 16.4K 88 - 134 n.a. 48.8 - 72.4 8.5 - 11.9
Dark Red Meranti Shorea spp. C 11.2K - 13.9K 74 - 92 2.97 - 5.03 38.8 - 52.9 8 - 11.4
Mempisang Spp. of Annonaceae C 13.4K - 14.8K 80 - 85 3.65 - 4.62 41.4 - 51 8 - 11.5
Meranti Bakau Shorea uliginosa C 14,700 68 3.38 25.9 6.7
Rubberwood Hevea brasiliensis C 9,200 66 4.69 32.3 11
White Meranti Shorea spp. C 11.5K - 19.4K 90 - 132 3.86 - 11.08 44.3 - 67.1 9.4 - 14.2
Nyatoh Spp. of Apotaceae C 12.2K - 18.3K 79 - 129 4.48 - 9.17 43.5 - 64.7 11 - 11.9
Mersawa Anisoptera spp. C 9.2K - 12.6K 49 - 54 5.52 - 5.65 26 - 28.9 7.1 - 7.4
Light Red Meranti Shorea spp. C 8.8K - 13.6K 63 - 83 2.41 - 2.51 34.5 - 48.2 6.3 - 11
Sepetir Sindora spp. C 13,600 92 5.93 46.3 13.6
Gerutu Parashorea spp. C 20,600 118 8.44 59.8 11.2
Pulai Alstonia spp. D 7,100 43 n.a. 24.8 6.3
Yellow Meranti Shorea spp. C 10K - 12.4K 67 - 88 2.97 40 - 50.6 8 - 10.5
Petai Parkia spp. D 10,700 55.0 n.a. 30.8 7.4
Geronggang Cratoxylum spp. D 8,000 40 1.93 18.3 5.1
Durian Durio spp., Neesia spp. C 9.5K - 15.8K 65 - 95 2.72 - 5.65 32.5 - 53.9 6.8 - 9.2
Bintangor Calophyllum spp. C 14,300 74 3.19 36.7 10.8
Sesendok Endospermum spp. D 8,500 39 1.75 20.8 5.4
Terap Artocarpus spp. D 10.3K - 12.1K 67 - 68 3.03 - 3.17 34.8 - 35 9.2
Penarahan Spp. of Myristicaceae C 9,380 51 5.65 43.6 9.6
Perupok Lophopetalum spp. C 12.2K - 12.6K 76 - 79 5.21 - 5.50 42.5 - 43.5 7.4 - 9.0
Terentang Campnosperma spp. D 7,000 42 2.21 22.4 7.5
SOFTWOOD (Conifers)
Damar Minyak Agathis borneensis D 12,000 66 n.a. 33.6 6.9
Podo Podocarpus spp. C 10,500 n.a. n.a. 48.5 7.8
MEDIUM HARDWOOD
Kulim Scorodocarpus borneensis A 14,900 107 5.10 57.0 10.3
Keruing Dipterocarpus spp. B 17K - 22.3K 91 - 133 4.34 - 9.17 50.2 - 68.1 9.2 - 12.3
Kempas Koompassia malaccensis A 18,600 122 7.52 65.6 12.4
Mengkulang Heritiera spp. B 12K - 16K 91 - 110 5.38 52.1 - 60.7 10.8 - 12.2
Merpauh Swintonia spp. B 14K - 18K 94 - 108 6.41 - 7.24 43.6 - 56.6 12.6 - 13.7
Meransi Carallia spp. A 13.2K - 13.4K 104 - 105 10.28 - 10.44 54.6 - 55.5 10.8 - 11
Mata Ulat Kokoona spp. A 16,300 102 6.83 53.1 10.7
Rengas Gluta spp. B 14,900 111 7.65 59.4 13.2
Punah Tetramerista glabra A 15,400 87 5.72 49.4 9.7
Tualang Koompassia excelsa A 17,800 121 8.0 62.0 16.3
Simpoh Dillenia spp. B 14,300 76 5.03 39.4 8.2
Kasai Pometia spp. C 17,000 106 5.31 - 9.52 49.3 - 53.5 13.4 - 14.3
Kelat Eugenia spp. B 17,600 116 6.0 59.0 12.8
Keledang Artocarpus spp. B 12.2K - 15.5K 93 - 97 4.9 47.5 - 58.8 9.9 - 12.5
Kapur Dryobalanops spp. B 13K - 18.7K 114 - 126 5.52 61.7 - 69.6 9.9 - 12.5
Merawan Hopea spp. B 15,000 90 - 92 5.10 - 5.59 46 - 51 9 - 9.3
HEAVY HARDWOOD
Balau Shorea spp. A 20,100 142 9.79 76 15
Bitis Madhuca utilis A 23,800 171 12.48 90.3 15.4
Chengal Neobalanocarpus heimii A 19,600 149 12 75.2 13.9
Giam Hopea spp. A 16,500 122 11.17 58.9 15.9
Red Balau Shorea spp. B 14.8K - 17K 100 - 142 5.52 52.2 - 69.2 10 - 15
Merbau Intsia palembanica B 15,400 116 9.17 58.2 12.5
Tembusu Fagraea spp. B 14,000 100 8 52.1 - 60.6 10 - 14
Resak Vatica spp. B 14.4K - 18.1K 81 - 105 4.90 - 11.45 41.7 - 60.9 9.3 - 12.6
Keranji Dialium spp. A 20,100 134 9.24 - 19.72 72 16
Kekatong Cynometra spp. A 18,400 135 11.38 67 15.6