Wood inspector

Sei in: home » database dei legni
  • Decrease font size
  • Default character size
  • Encrease font size


Fornitori

Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 4
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 3
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 2
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 

Contatti

database dei legni


Ask informationsPrint pageSend to a friend
Upun batu
Upun batu (Upuna borneensis)

Family: Dipterocarpaceae

Common names: Balau, Balau penyau, Cangal, Cangal gading, Cangal tanduk, Dusun, Kenyahuk bantuk, Pan yua tanduk, Panyau, Panyau tulang, Penyau, Resak, Tekam, Tekem, Upun, Upun batu

Distributed in: Brunei, Indonesia, Malaysia (Oceania and S.E. Asia)

Distribution overview: Described as a lowland forest tree, and is found in Borneo, as well as Sabah, Sarawak, and Brunei.

Common uses: Boat building (general), Bridge construction, Building construction, Building materials, Cabin construction, Construction, Factory construction, Heavy construction, Mine timbers, Wharf construction

Environment profile: Secure in many areas of its range

Tree size: Tree height is 20-30 m

Colors: the heart isDarkens significantly upon exposure, Redand the sapwoodWell defined, White to yellow.The grain isStraight, the textureMediumand the lusterSlightly lustrous

Natural durability: Moderately durable, Very durable

Odor: No specific smell or taste

Kiln Schedules: Drying (speed) is fast

Drying Defects: Slight end splitting, Slight surface checking

Ease of Drying: Radial: 1.0 to 1.5% Shrinkage from Green to 15% MC Tangential: 1.5 to 2.0% The material dries fairly rapidly, with very little degrade.

Tree Identification: Bole/stem form is straight

Comments: Twice as hard as Teak, and 50% stonger in other properties except in shock and resistance

Blunting Effect: Medium effect

Boring: Moderately easy

Cutting Resistance: Cutting Resistance with green wood is moderate

Planing: Planes to a smooth surface

Resistance to Impregnation: Sapwood is extremely resistant

Response to hand tools: Moderate working qualities

Turning: High density adversely effects turning Presence of gum in the timber are reported to adversely affect most of its machining properties


  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,8
Density 961 kg/m3
Bending Strength kg/cm2
Crushing Strength kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 2 %
Weight 897 785 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Density 60 lbs/ft3
Specific Gravity 0.8
Weight 56 49 lbs/ft3
Radial Shrinkage 2 %
Tangential Shrinkage 4 %

Density (dry weight) = 61-67 lbs/cu.ft
Shrinkage, Tangential = very small
Shrinkage, Radial = very small
Density (dry weight) = 67-75 lbs/cu. ft
Density (dry weight) = 53-60 lbs/cu. ft
Very high density

Andy Poynter. 1993. Personal CommunicationAshton, P.S.,1964,A manual of the Dipterocarp trees of Brunei State,O.U.P. LondonChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Fundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, NetherlandsMeijer, W., Wood, G.H.S.,1964,Dipterocarps of Sabah (North Borneo,Sabah Forest Department, Forest Record No.5Moore, K.M.,1972,Observations on some Australian forest insects: 26 Some insects attacking,three important tree species (Eucalyptus grandis, Eucalyptus pilularis and,Eucalyptus saligna,Australian Zoologist 17(1) pp30-9Sarawak Forestry Department,1953,Trees and Timbers of Sarawak and Brunei - Leaflet No. 9 Family,Dipterocarpaceae,Forest Department of SarawakThomas, A.V.,1953,The timber of Upun Batu (Upuna borneensis,Malaysian Forester 16(3, 163-5WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
*Come interpretare i dati (manleva su eventuali imprecisioni)