Bohingo (Pachypodanthium confine)
Family: Annonaceae
Common names: Bohingo, Ntom
Distributed in: Cameroon, Gabon (Africa)
Distribution overview: The species occurs in Africa, primarily in Cameroon and Gabon.
Common uses: Balusters, Barge fenders, Boxes and crates, Building construction, Building materials, Casks, Chairs, Chests, Concealed parts (Furniture), Construction, Decorative plywood, Desks, Dining-room furniture, Docks, Dockwork, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Harbor work, Hatracks, Interior construction, Interior trim, Joinery, Kitchen cabinets, Light construction, Living-room suites, Marine construction, Millwork, Mine timbers, Moldings, Naval architecture, Office furniture, Packing cases
Environment profile: Status within its natural growth range has not been officially assessed
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow/Brown and the sapwoodWhite, Yellow.The grain isEven, the textureFineand the lusterMedium
Natural durability: Resistant to powder post beetles, Susceptible to insect attack
Odor: No specific smell or taste
Silica Content: High
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Distortion, Splitting
Ease of Drying: Seasons well with little or no degrade
Comments: The leaf and bark of the tree are reported to contain alkaloids
Blunting Effect: Slight blunting effect on cutters
Boring: Responds very well to boring
Carving: Carves well in dry condition
Cutting Resistance: Fairly easy to saw
Gluing: Satisfactory gluing properties
Mortising: Very good mortising characteristics
Moulding: Good moulding properties
Movement in Service: Good moulding properties
Nailing: Pre-Boring Recommended, Satisfactory nailing properties
Planing: Very Good to Excellent
Resistance to Impregnation: Permeable sapwood
Response to hand tools: Works easily with all hand and machine tools
Routing recessing:
The material responds readily to boring operations
Sanding: Easy to sand
Sanded surfaces are usually clean and smooth
Screwing: Satisfactory screwing properties
; Turning: Poor to Very Poor Results
The material responds readily to ordinary machine tools in turning operations
Painting: Takes paint well
; Polishing: Poor to Very Poor; Varnishing: Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
|
kg/m3 |
Bending Strength |
730 |
1136 |
kg/cm2 |
Crushing Strength |
365 |
620 |
kg/cm2 |
Hardness |
|
|
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
150 |
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 | Bending Strength | 10388 | 16170 | psi | Maximum Crushing Strength | 5194 | 8820 | psi | Shearing Strength | | 2136 | psi | Stiffness | 1764 | 2019 | 1000 psi | |
Max. crushing strength = very high Compression strength (parallel to grain) = very high
The species has very high bending strength, and is much stronger than Teak in the air-dry condition (about 12 percent moisture content). It is stronger than Hard maple, White oak, or Teak
Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research
|