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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

Sito web: www.pippo.it
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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
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Okip
Okip (Ctenolophon englerianus)

Family: Linaceae

Common names: Ijaw me, Me, Okip

Distributed in: Cameroon, Gabon, Nigeria (Africa)

Distribution overview: The species occurs on the west coast of Africa, from south-western Nigeria to Cameroon and Gabon. It is usually found in freshwater swamp forests.

Common uses: Agricultural implements, Barge fenders, Boat building (general), Boat building, Building construction, Building materials, Cabin construction, Canoes, Construction, Crossties, Docks, Dockwork, Domestic flooring, Factory construction, Flooring, Fuelwood, Harbor work, Heavy construction, Lifeboats, Marine construction, Mine timbers, Naval architecture, Parquet flooring, Poles, Raft floats, Rafts, Railroad ties, Shipbuilding, Sporting Goods, Sub-flooring, Truck bodies, Utility poles, Vehicle parts, Wharf construction

Environment profile: Status has not been officially assessed

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isYellow, Yellowish tanand the sapwoodWhite, Yellow.The grain isStraight, the textureFineand the lusterLow

Natural durability: Very durable, Very durable

Odor: No specific smell or taste

Kiln Drying Rate: Very slow

Drying Defects: Prone to warping and splitting , Splitting

Ease of Drying: Thick Stock Requires Care

Comments: Generally strong, tough, and hard. Oil ContentThe wood contains oil deposits

Blunting Effect: High to severe

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Nailing: Pre-Boring Recommended, Pre-Boring is necessary

Planing: Very Good to Excellent

Resistance to Abrasion: High

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Poor response to hand tools

Routing recessing: Fairly Difficult to Very Difficult

Veneering qualities: No drying degrade, Suitable for peeling

Steam bending: Fairly Easy to Very Easy

Screwing: Fair to Good Results, Pre-boring recommended; Turning: Very Good to Excellent Results

Polishing: Very Good to Excellent; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 929 kg/m3
Bending Strength 1277 1858 kg/cm2
Crushing Strength 567 836 kg/cm2
Hardness 1192 kg
Impact Strength cm
Shearing Strength 151 kg/cm2
Stiffness 151 174 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 6 %
Weight 929 737 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 18167 26434 psi
Density 58 lbs/ft3
Hardness 2628 lbs
Maximum Crushing Strength 8070 11903 psi
Shearing Strength 2156 psi
Stiffness 2157 2486 1000 psi
Weight 58 46 lbs/ft3
Radial Shrinkage 6 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 13 %

Shrinkage, Radial = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Bending strength (MOR) = very high
Shrinkage, Volumetric = fairly large
Shrinkage, Tangential = large
Max. crushing strength = very high
Max. crushing strength = high
Shrinkage, Volumetric = moderate
Shrinkage, Volumetric = large
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = medium
Modulus of Elasticity (stiffness) = high
Heavy
Hardness (side grain) = very hard
Hardness (side grain) = hard
Density (dry weight) =53-60 lbs/cu. ft.
Density (dry weight) = 61-67 lbs/cu. ft
It is stronger than Hard maple, White oak, or Teak. It is hard - harder than Hard maple or Teak The wood is very heavy.

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchDalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the ColoniesKeay, R.W.J.1989. Trees of Nigeria.Revised Version of Nigerian Trees. Clarendon Press, Oxford.Keay, R.W.J., et al,1960,Nigerian Trees Vol.1,Nigeria Federal Department of Forest Research, IbadanKennedy, J.D.,1936,Forest Flora of Southern Nigeria,Government Printer LagosSallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TSallenave, P.,1964,Proprietes Physiques et Mecaniques des Bois Tropicaux (Premier Supplement,C.T.F.T. Publ.,no.23Takahashi, 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)