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Fornitori

Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 4
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 3
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Ditta 2
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Ditta 1
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Ditta 0
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Allanblackia
Allanblackia (Allanblackia stuhlmannii)

Family: Guttiferae

Common names: Allanblackia, Mkange, Mkanya, Mkanye, Msambu, Mwaka

Distributed in: Tanzania (Africa)

Common uses: Agricultural implements, Boxes and crates, Cabinetmaking, Flooring: industrial heavy traffic, Furniture, Joinery, Light construction, Particleboard, Piling, Plywood, Toys, Turnery, Veneer

Colors: the heart isDark brown, Purpleand the sapwoodDifferent than heartwood .The grain isStraight, the textureMediumand the lusterMedium

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

Kiln Schedules: UK=A US=T2D4/T2D3 Fr=1

Kiln Drying Rate: Fairly rapid (11-17 days for boards under 32 mm, to 31-51 days for boards greater than 63 mm)

Drying Defects: Slight end splitting, Slight surface checking

Tree Identification: Bole/stem form is straight

Boring: Easy

Cutting Resistance: Cutting Resistance with dry wood is moderate

Mortising: Moderately easy to mortise

Moulding: Satisfactory moulding

Movement in Service: Satisfactory moulding

Nailing: Holds nails well

Planing: Planes to a satisfactory finish

Resistance to Impregnation: Sapwood is permeable

Resistance to Splitting: Satisfactory

Response to hand tools: Easy to machine


Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 721 kg/m3
Bending Strength 590 924 kg/cm2
Crushing Strength 310 491 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength 116 kg/cm2
Stiffness 108 125 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 2 %
Weight 705 560 kg/m3
Maximum Load cm-kg/cm3
Toughness 192 cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 8397 13144 psi
Density 45 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 4413 6988 psi
Shearing Strength 1662 psi
Stiffness 1543 1781 1000 psi
Toughness 167 inch-lbs
Weight 44 35 lbs/ft3
Radial Shrinkage 2 %
Tangential Shrinkage 9 %

Density (dry weight) = 46-52 lbs/cu. ft.
Max. crushing strength = medium
Bending strength (MOR) = medium
Density (dry weight) = 38-45 lbs/cu. ft.
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = medium
Shrinkage, Tangential = fairly large
Shrinkage, Radial = very small
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = low
Hardness (side grain) = soft
Bending strength (MOR) = low
Toughness (total work) = low
Shrinkage, Tangential = large
Shrinkage, Radial = small
Shearing strength (parallel to grain) = very low
Max. crushing strength = high

Banks, C.H. and J.P. Schoeman. 1963. Railway Sleeper and Crossing Timbers. Bulletin No. 41, Republic of South Africa. The Government Printer, Pretoria, South Africa.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.48Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchMurira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Takahashi, 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 Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. MoshiTanzania Forestry Department,1961,Timbers of Tanganyika - Allanblackia stuhlmannii (mkanya, msambu,Tanzania Forestry Department, Utilisation Section, Moshi - Timbers of,Tanganyika
*Come interpretare i dati (manleva su eventuali imprecisioni)