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Origin: Africa
Family – Rubiaceae
Scientific name
Nauclea diderrichii; Nauclea gilletii
Trade and local names
N’Glumase; Bilinga; Gulu-Maza; Negulo; N’Gulo-Maza; Opepe
Physical properties
|
Density at 12% (kg/m³) |
750-800 |
Moderate
Heavy |
|
Tangential Radial
Shrinkage (%) |
3.4
2.0 |
Low
Low |
Mechanical properties
|
Static bending
Breaking strength (N/mm²) |
127.5 |
Medium |
|
Axial compression
Breaking strength (N/mm²) |
63 |
Medium |
|
Hardness (kN) |
5.3 |
Medium |
Durability
Durable.
Technological properties
• Workability: works with moderate ease, both in mechanical and manual operations, although it may cause the cutting blades to wear or require regular tuning.
• Seasoning: slow albeit easy drying.
• Finish: allows good finishes.
• Gluing: satisfactory gluing qualities.
Main uses
• Flooring
|
Floor traffic |
|
Light(residential) |
Normal
(public buildings) |
Heavy
(sports facilities) |
|
x |
x |
| • Woodwork and cabinetry
• Outdoor structures: bridges, railway slabs, hydraulic structures.
• Other: turnery, veneer
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