  
Gedu nohor (Entandrophragma angolense)
Family: Meliaceae
Common names: Abenbegne, Abeubegne, Acajou tiama, Acuminata, Akuk, Baeko, Baka-biraingui, Bodongo, Brown mahogany tiama, Budongo mahogany, Digbo, Dongomanguila, Dubo, Dukuma, Edinam, Egin-igedu, Entandrophragma mahogany, Esaka, Eyin igedu, Gedu lohor, Gedu noha, Gedu nohor, Ijebu, Ipaki, Jebu mahogany, Kahiguigo, Kalungi, Keguigo, Kikura, Kiluka, Krobra, Lifaki, Livuite, Lokobo, Lukru, Mukusu, Muyovu, Njilei, Ounabo, Penkwa, Tiama, Tiama-tiama, Timbi, Tshimaie tsitoke, Tshimaye blanc, Vovo, Zize-plehi, Zizia
Distributed in: Angola, Benin, Cameroon, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Nigeria, Sierra Leone, South Africa, Sudan, Togo, Uganda, Zaire (Africa)
Distribution overview: West, Central, and East Africa (Uganda, Ivory Coast, Ghana, and Zaire); occurs in rain forests, deciduous forests, and transitional formations. Coppices freely at the pole stage.
Common uses: Boat building (general), Boxes and crates, Cabinetmaking, Canoes, Carvings, Chairs, Chests, Concealed parts (Furniture), Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Interior construction, Joinery, Kitchen cabinets, Light construction, Living-room suites, Musical instruments, Office furniture, Paneling, Parquet flooring, Plywood, Radio - stereo - TV cabinets, Rustic furniture, Stairrails, Stairworks, Stools, Stringers, Sub-flooring, Tables , Tables, Turnery, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Wardrobes
Product sources: The ITTO reports that timber from this species is produced regularly and is a regular and fairly important export commodity.
Environment profile: Generally secure within most of its natural habitat, but note exceptions.
Tree size: Tree height is 40-50 m
Colors: the heart isReddish brown, Turn reddish brown upon exposureand the sapwoodWhite to yellow, Yellow.The grain isStriped figure, the textureUniformand the lusterPronounced
Natural durability: Susceptible to pinhole borer, Very durable
Odor: No specific smell or taste
LightInduced Color Change: Darker
Kiln Schedules: Kiln Drying Rate (in days) is rather slow
Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)
Drying Defects: Splitting, Warping can be expected
Ease of Drying: Slowly
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: Blunting effect on sawing dry wood is severe
Boring: Fairly easy to very easy
Carving: Good results
Cutting Resistance: Low resistance
Gluing: Moderate gluing properties
Mortising: Finishes well
Moulding: Good finishing
Movement in Service: Good finishing
Nailing: Holds nails well, Satisfactory nailing properties
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood is resistant
Response to hand tools: Responds well
Routing recessing: Very good in both routing and recessing
Sanding: Yields smooth, clean surfaces
Veneering qualities: Suitable for peeling, Suitable for slicing
Steam bending: Very poor
Screwing: Easy to screw, Satisfactory characteristics; Turning: Yields smooth, clean surface.
Painting: Good; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
| Item |
Green |
Dry |
Metric |
| Specific Gravity |
0,43 |
0,49 |
|
| Density |
|
544 |
kg/m3 |
| Bending Strength |
525 |
844 |
kg/cm2 |
| Crushing Strength |
272 |
489 |
kg/cm2 |
| Hardness |
|
442 |
kg |
| Impact Strength |
50 |
58 |
cm |
| Shearing Strength |
|
103 |
kg/cm2 |
| Stiffness |
80 |
107 |
1000 kg/cm2 |
| Tangential Shrinkage |
7 |
|
% |
| Radial Shrinkage |
4 |
|
% |
| Weight |
544 |
528 |
kg/m3 |
| Maximum Load |
0,42 |
0,49 |
cm-kg/cm3 |
| Toughness |
|
109 |
cm-kg |
| Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 7475 | 12018 | psi | | Density | | 34 | lbs/ft3 | | Hardness | | 976 | lbs | | Impact Strength | 20 | 23 | inches | | Maximum Crushing Strength | 3876 | 6969 | psi | | Shearing Strength | | 1473 | psi | | Stiffness | 1147 | 1533 | 1000 psi | | Toughness | | 95 | inch-lbs | | Work to Maximum Load | 6 | 7 | inch-lbs/in3 | | Specific Gravity | 0.43 | 0.49 | | | Weight | 34 | 33 | lbs/ft3 | | Radial Shrinkage | 4 | | % | | Tangential Shrinkage | 7 | | % | | Volumetric Shrinkage | 12 | | % | |
Density (dry weight) = 31-37 lbs/cu. ft. 0 Max. crushing strength = medium 0 Hardness (side grain) = soft 0 Bending strength (MOR) = low 0 Modulus of Elasticity (stiffness) = very low 0 Bending strength (MOR) = medium 0 Modulus of Elasticity (stiffness) = low 0 Shearing strength (parallel to grain) = low 0 Shrinkage, Tangential = moderate Shrinkage, Volumetric = large Shrinkage, Radial = small Toughness-Hammer drop (Impact Strength) = low Shrinkage, Radial = moderate Shearing strength (parallel to grain) = very low Toughness-Hammer drop (Impact Strength) = very low Density (dry weight) = 38-45 lbs/cu. ft. Work to Maximum Load = very low Shrinkage, Volumetric = moderate Shrinkage, Tangential = small Shrinkage, Tangential = fairly large Max. crushing strength = high Hardness (side grain) = very soft Hardness (side grain) = medium Toughness (total work) = very low Shrinkage, Tangential = large Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = medium Bending strength (MOR) = high
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