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| TRADE NAME |
: |
BILINGA |
| SCIENTIFIC NAME |
: |
Nauclea diderrichii Merill
(= Sarcocephalus trillesii Pierre)
|
| FAMILY |
: |
Rubiaceae |
 |
| REGIONAL DISTRIBUTION |
: |
West Africa - Central Africa
Sierra Leone : BUNDUI
Ivory Coast : BADI
Ghana : KUSIA
Nigeria : OPEPE
Cameroon : AKONDOC
Equat. Guinea : ALOMA
Gabon : BILINGA
Congo-Zaire : N'GULU-MAZA
Uganda : KILINGI
Angola : ENGOLO
Great Britain : OPEPE
Pr. = Rather low Ex. = Promotion
|
|
| SAPWOOD |
: |
Clearly demarcated - whitish to pale yellow - 5 cm. |
| HEARTWOOD |
: |
|
- Colour : Yellow to orange yellow
- Grain : Slightly/occasionally interlocked to highly/frequently interlocked
- Texture : Medium
- Silver figure :-
|
|
| TECHNOLOGICAL PROPERTIES |
- Green weight (kg/m3) = 1000 - 1100
- Specific gravity at 12% M.C. (kg/m3) MV12 = (heavy) 760
- Volumetric swelling for 1% MC variation V% (large) 0.55
- Total tangential swelling T% = 8.0
- Total radial swelling R% = 4.7
- Crushing strength (N/mm2) C12 = 62
- Static bending strength (N/mm2) F12 = 134
- Modulus of elasticity (N/mm2) E12 = 11800
|
|
| END USE |
- Exterior joinery
- Decorative sliced veneers
- Flooring
- House framing
- Poles
- Harbour works - boat building
- Truck and wagon trays
- Railways sleepers.
|
|
| REMARKS |
- Natural durability : Durable
- Lyctus susceptibility : No
- Preservative treatment : Moderate
- Other remarks :
Resistant to marine borers.
An AZOBE substitute for some end-uses (sleepers)
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