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Ditta 5
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Agyahere
Agyahere (Protomegabaria stapfiana)

Family: Euphorbiaceae

Common names: Agyahere, Agyehyele, Asa boguie, Bogboi, Do, Emuinguim, Gbangfoboi, Gbogboi, Mbraoue, Senan, Subite, Wan

Distributed in: Benin, Cameroon, Equatorial Guinea, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, Sierra Leone, Togo (Africa)

Common uses: Fuelwood, Light construction

Environment profile: Abundant/Secure

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterSlightly lustrous

Natural durability: Susceptible to insect attack, Very durable

Odor: Has an odor

Kiln Drying Rate: Very slow

Drying Defects: Checking, Splitting

Ease of Drying: Slowly

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Moderate to saw

Gluing: Fairly Easy to Very Easy

Mortising: Very Good to Excellent

Moulding: Very Good to Excellent

Movement in Service: Very Good to Excellent

Nailing: Pre-Boring Recommended, Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds Readily

Routing recessing: Very Good to Excellent Results

Sanding: Fairly Easy to Very Easy

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Tends to Degrade

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

Painting: Very Good to Excellent; 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 689 kg/m3
Bending Strength kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 752 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Density 43 lbs/ft3
Hardness 1658 lbs
Maximum Crushing Strength 3916 6397 psi
Weight 42 34 lbs/ft3

Density (dry weight) = 46-52 lbs/cu. ft.
Density (dry weight) = 38-45 lbs/cu. ft.
Max. crushing strength = medium
Hardness (side grain) = medium

Cooper, G.P., Record, S.J.,1931,The Evergreen Forests of Liberia,Yale School Forestry Bulletin,31,pp1-153Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentIrvine, 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, IbadanKryn, J.M., Forbes, E.W.,1959,The Woods of Liberia,U.S.A. Department of Agriculture,Forest Products Laboratory, Madison,,Report No. 2159Kunkel, G.,1965,The Trees of Liberia,German Forestry Mission to Liberia Report,No.3Savill, P.S., Fox, J.E.D.,1967,Trees of Sierra LeoneTakahashi, 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)