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Fornitori

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

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

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

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

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Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Koframire
Koframire (Pteleopsis hylodendron)

Family: Combretaceae

Common names: Koframire, Mukala, Osanga, Sikon

Distributed in: Benin, Cameroon, Central African Republic, Congo, Equatorial Guinea, Gabon, Ghana, Ivory Coast, Togo, Zaire (Africa)

Common uses: Agricultural implements, Boxes and crates, Cabinetmaking, Flooring, Furniture, Handles: general, Heavy construction, Joinery, Ladders, Matches, Mathematical instruments, Mine timbers, Plywood, Posts, Railroad ties, Sporting Goods, Textile equipment, Tool handles, Toys, Turnery, Vats, Vehicle parts, Veneer

Colors: the heart isGreenish to greyish, Yellow to golden-yellow to orangeand the sapwoodSame as heartwood, White to yellow.The grain isWavy, the textureFine to mediumand the lusterMedium

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to insect attack

Kiln Drying Rate: Naturally dries quickly

Drying Defects: Checking, Splitting

Ease of Drying: Slowly

Tree Identification: Bole/stem form is straight

Cutting Resistance: Easy to saw

Nailing: Easy to nail, Holds nails well

Planing: Planes well, to a good finish

Response to hand tools: Easy to machine


Polishing: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 753 kg/m3
Bending Strength 954 1473 kg/cm2
Crushing Strength 443 649 kg/cm2
Hardness 1192 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 102 118 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 3 %
Weight 737 592 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 13576 20956 psi
Density 47 lbs/ft3
Hardness 2628 lbs
Maximum Crushing Strength 6302 9236 psi
Stiffness 1460 1686 1000 psi
Weight 46 37 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %

Max. crushing strength = high
Bending strength (MOR) = high
Shrinkage, Tangential = small
Shrinkage, Radial = small
Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Tangential = moderate
Shrinkage, Radial = moderate
Max. crushing strength = medium
Hardness (side grain) = very hard
Hardness (side grain) = hard

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchFouarge, J.,1953,Bois du Congo,I.N.E.A.C.Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished dataIrvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKeay, R.W.J., et al,1960,Nigerian Trees Vol.1,Nigeria Federal Department of Forest Research, IbadanLebacq, L., Dechamps, R.,1967,Contribution a un Inventaire de Forets du Nord-kasai,Musee Royal de L'Afrique Centrale Belgium Annals Series 8 No.5Okeke, R.E.,1966,Comparative Anatomy of three Nigerian Afzelia Species,Department of Forest Research, Ibadan, Nigeria, Forest Products Research,Laboratory Report No.9Pieters, A.,1977,Essences Forestieres du Zaire,R.U.G. Gent BelguimSallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7
*Come interpretare i dati (manleva su eventuali imprecisioni)