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Mafu
Mafu (Fagaropsis angolensis)

Family: Rutaceae

Common names: Carumo, Chepkweret, Dero, Kabegwi, Mafu, Mfu, Mkunguni, Mouke, Mtongoti, Mukarakati, Mumara, Murumu, Muua, Muyinja, Muyinya, Nkunguni, Noiuet, Schapindi, Shigulotso, Siguilou

Distributed in: Angola, Ethiopia, Kenya, Malawi, Tanzania, Uganda, Zaire, Zimbabwe (Africa)

Distribution overview: East Africa (Tanzania, Kenya), found in rain and subtropical forests to elevations of about 6,000 ft.

Common uses: Bedroom suites, Boxes and crates, Building materials, Cabinetmaking, Carvings, Chairs, Chests, Concealed parts (Furniture), Decorative veneer, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Excelsior, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Inlay work, Interior construction, Joinery, Kitchen cabinets, Light construction, Living-room suites, Matches, Millwork, Moldings, Musical instruments, Office furniture, Ornamental work , Paneling , Paneling, Plywood, Pulp/Paper products, Radio - stereo - TV cabinets, Rustic furniture, Sporting Goods, Stools, Tables , Turnery, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Wainscotting, Wardrobes

Environment profile: Vulnerable in parts of its natural habitat

Colors: the heart isRed, Yellow to golden-yellow to orangeand the sapwoodWhite, White to yellow.The grain isWeak figure, the textureMediumand the lusterLustrous

Natural durability: Susceptible to marine borer attack, Very durable

Odor: Taste described as bitter

LightInduced Color Change: Darker

Kiln Schedules: UK=E US=T6D2/T3D1 Fr=5

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Severe end splitting, Slight end splitting

Ease of Drying: Radial and tangential shrinkage from 1-2%

Tree Identification: Bole/stem form is straight

Blunting Effect: Blunting effect on machining is slight

Boring: Poor to very poor results

Carving: Poor to Very Poor Results

Cutting Resistance: Possible splitting during initial stages of sawing

Gluing: Easy to glue

Mortising: Poor to Very Poor

Moulding: Poor to Very Poor

Movement in Service: Poor to Very Poor

Nailing: Holds nails well, Pre-boring recommended

Planing: Poor to Very Poor

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Easy to machine

Routing recessing: Routing yields good results

Sanding: Yields smooth surfaces

Screwing: Difficult to screw, Good screw holding properties; Turning: Yields clean surfaces

Polishing: Satisfactory; Staining: Finish is generally satisfactory; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,52
Density 657 kg/m3
Bending Strength 666 1007 kg/cm2
Crushing Strength 443 633 kg/cm2
Hardness 694 kg
Impact Strength 55 88 cm
Shearing Strength 155 kg/cm2
Stiffness 110 134 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 3 %
Weight 608 480 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9475 14334 psi
Density 41 lbs/ft3
Hardness 1531 lbs
Impact Strength 22 35 inches
Maximum Crushing Strength 6302 9007 psi
Shearing Strength 2205 psi
Stiffness 1576 1919 1000 psi
Specific Gravity 0.52
Weight 38 30 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 8 %

Density (dry weight) = 38-45 lbs/cu. ft. 0
Shrinkage, Tangential = small
Shrinkage, Radial = small
Max. crushing strength = high
Hardness (side grain) = medium
Bending strength (MOR) = medium
Shrinkage, Tangential = very small
Shrinkage, Tangential = moderate
Shrinkage, Radial = very small
Shrinkage, Radial = moderate
Shrinkage, Radial = fairly large
Shrinkage, Volumetric = small
Density (dry weight) = 31-37 lbs/cu. ft.

Bois et Forets des Tropiques,1948,Clausenopsis angolensis,Bois et Forets des Tropiques,No.6,PP124-6Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. MoshiChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Eggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaForest Products Research Laboratory, U.K.,1955,Kiln-Drying Schedules,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research Establishment Leaflet,No.42Forests Products Research Laboratory, U.K.,1956,A Handbook of Hardwoods,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research EstablishmentFrance - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceGoldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Grant, D.K.S.,1934,Some Local Timbers,Tanzania Forest DepartmentLogan, W.E.M.,1946,An Introduction to the Forests of Central and Southern Ethiopia,Imperial Forestry Institute, Oxford Paper No.24McCoy-Hill, M.,1955,Timbers of Tanganyika - Afzelia quanzensis, Fagaropsis and Sterculia,appendiculata,Timber Technology,63(2191,p260Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Patterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23Tack, C.H.,1969,Uganda Timbers,Govt. Printer UgandaTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tanzania Forest Department,1960,The Natural Durability of Local Timbers,Tanzanian Forest Dept. Tech. Note,No.14Tanzania Forest Department,1966,Flooring Timbers,Tanzania Forest Div. Util. Sec. Moshi - Timbers of TanganyikaTanzania Forest Division,1961,Fagaropsis angolensis (Mafu,Tanzania Forest Div. Util. Sec. Moshi - Timbers of TanganyikaTanzania Forest Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. MoshiTanzania Forest Division,1967,The Weights and Shrinkage of some Local Timbers,Tanzania Forest Div. Util. Sect. Technical Note,No.25Timber Development Association Ltd.,1955,World Timbers (3 Vols.,Timber Development Association Ltd.Timber Development Association,1948,Some New Timbers and Their Uses No. 34,Timber Development Association Limited, London [TRADA]Uganda Forest Department,1969,The Shrinkage of Some Ugandan Timbers,Uganda Forestry Department Timber Leaflet,No.47Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
*Come interpretare i dati (manleva su eventuali imprecisioni)