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Common Names
Common Uses
Countries of Distribution
Ease of Drying
Family Name
Gluing
Grain
Heartwood Color
Light-Induced Color Change
Luster
Nailing
Natural Durability
Numerical Data
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Screwing
Strength Properties
Synonyms
Texture
Trade Name
Tree Identification
Tree Size
Turning
Veneering Qualities
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Synonyms
Combretum macrostigmateum
Common Names
Mgongolo, Mgurulu, Mgurure, Mlanyika, Mpera-mwitu, Mungulule, Muranyani
Regions of Distribution
Africa
Countries of Distribution
[VIEW MAP]
Kenya
Common Uses
Agricultural implements, Bearings & bushings, Boat building (general), Carvings, Flooring: industrial heavy traffic, Handles: general, Heavy construction, Ladders, Mathematical instruments, Mine timbers, Musical instruments, Piling, Sporting Goods, Toys, Turnery
Heartwood Color
| White |
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| Green/grey |
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| Red |
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| Purple |
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| Dark brown |
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Sapwood Color
| White |
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| White to yellow |
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| Well defined |
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Grain
Texture
| Fine |
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| Medium |
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| Fine to medium |
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Luster
Natural Durability
| Durable |
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| Resistant to termites |
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| Non-resistant to powder post beetles |
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| Non-resistant to marine borers |
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| Susceptible to insect attack |
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| Moderately durable |
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| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
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| Moderately resistant to termite (Isoptera) attack |
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| Moderately resistant to marine borer attack |
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| Durable |
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Light-Induced Color Change
Ease of Drying
| Fairly Easy |
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| Moderately Difficult to Difficult |
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Tree Identification
| Bole/stem form is misshapen |
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| Bole/stem form is fluted |
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Tree Size
Gluing
Nailing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Possible if prebored |
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Resistance to Impregnation
| Heartwood is extremely resistant |
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Response to Hand Tools
| Easy to Work |
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| Fairly Difficult to Difficult to Work |
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| Easy to machine |
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Screwing
Turning
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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| Good results |
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| Easy to turn |
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Veneering Qualities
| Suitable for slicing |
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| Veneers easily |
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| Veneers moderately easy |
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| Suitable for peeling |
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Polishing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Good results |
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Strength Properties
| Density (dry weight) = 61-67 lbs/cu. ft |
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| Shrinkage, Tangential = very small |
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| Shrinkage, Radial = very small |
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| Shearing strength (parallel to grain) = high |
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| Modulus of Elasticity (stiffness) = high |
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| Max. crushing strength = high |
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| Density (dry weight) = 67-75 lbs/cu.ft |
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| Bending strength (MOR) = high |
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| Shrinkage, Tangential = small |
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| Shrinkage, Tangential = moderate |
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| Shrinkage, Radial = small |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 13576 | 20956 | psi |
| Density | | 57 | lbs/ft3 |
| Maximum Crushing Strength | 6899 | 9945 | psi |
| Shearing Strength | | 2847 | psi |
| Stiffness | 2167 | 2494 | 1000 psi |
| Weight | 56 | 51 | lbs/ft3 |
| Radial Shrinkage | 2 | | % |
| Tangential Shrinkage | 5 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 954 | 1473 | kg/cm2 |
| Density | | 913 | kg/m3 |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Shearing Strength | | 200 | kg/cm2 |
| Stiffness | 152 | 175 | 1000 kg/cm2 |
| Weight | 897 | 817 | kg/m3 |
| Radial Shrinkage | 2 | | % |
References
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
Dale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards London
France - C.T.F.T.,1966,Bois Tropicaux,C.T.F.T. Publ.,12
Tanzania Forest Division,1967,The Weights and Shrinkage of some Local Timbers,Tanzania Forest Div. Util. Sect. Technical Note,No.25
Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
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