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Ditta 5
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Asgaai
Asgaai (Curtisia faginea)

Family: Cornaceae

Common names: Asgaai, Assagai, Assagaiwood, Assegai, Assegai tree, Cape lancewood, Curtisea, Moodalaqweene, Mubotjo, Muchekamani, Nmnoiso, Umguna, Umgxina, Umnoiso, Zulu

Distributed in: South Africa, Zimbabwe (Africa)

Common uses: Agricultural implements, Boat building (general), Boxes and crates, Cabinetmaking, Carvings, Flooring, Furniture, Handles: general, Heavy construction, Mathematical instruments, Musical instruments, Sporting Goods, Tool handles, Toys, Turnery, Vehicle parts, Veneer, Wheel spokes, Wheels

Colors: the heart isPurple, Redand the sapwoodPaler than heartwood .The grain isWeak figure, the textureFine

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Very durable

Kiln Schedules: UK=B US=T2C2/T2C1 Fr=2

Drying Defects: Severe end splitting

Ease of Drying: Difficult

Tree Identification: Bole/stem form is not buttressed

Cutting Resistance: Cutting Resistance with dry wood is easy

Gluing: Easy to glue

Nailing: Possible if prebored

Planing: Planes well, to a good finish

Resistance to Impregnation: Heartwood is resistant

Response to hand tools: Easy to machine

Screwing: Possible if prebored ; Turning: Easy to turn

Polishing: Satisfactory; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 849 kg/m3
Bending Strength 774 1203 kg/cm2
Crushing Strength 485 699 kg/cm2
Hardness 1051 kg
Impact Strength cm
Shearing Strength 155 kg/cm2
Stiffness 143 165 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 4 %
Weight 833 673 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 11016 17122 psi
Density 53 lbs/ft3
Hardness 2318 lbs
Maximum Crushing Strength 6899 9945 psi
Shearing Strength 2205 psi
Stiffness 2041 2351 1000 psi
Weight 52 42 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 8 %

Max. crushing strength = high
Density (dry weight) = 53-60 lbs/cu. ft
Shrinkage, Radial = moderate
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = high
Hardness (side grain) = hard
Bending strength (MOR) = medium
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = small
Shrinkage, Radial = large
Bending strength (MOR) = high
Shrinkage, Tangential = small
Shrinkage, Radial = fairly large
Modulus of Elasticity (stiffness) = medium
Density (dry weight) = 46-52 lbs/cu. ft.

Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48Banks, C.H.,1954,The Mechanical Properties of Timbers with Particular Reference to those,grown in the Union of South Africa,Journal of the South African Forestry Association,No. 24 pp.44-65,[South,African Forestry Journal]Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchChalk, L. et al.,1935,Fifteen South African High Forest Timber Trees,Forest Trees and Timbers of the British Empire, Imperial Forestry,Institute, Oxford,Part 3Goldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Palgrave, K.C.,1977,Trees of Southern Africa,Cape Town South AfricaScott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Scott, M.H.,1953,Utilisation Notes on South African Timbers,South African Forestry Department Bulletin No.36Sim, T.R.,1921,Native Trees of South Africa,Union of South Africa Department of Mines and Industries Memoir No.3Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7
*Come interpretare i dati (manleva su eventuali imprecisioni)