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

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Ditta 2
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Red aldar
Red aldar (Cunonia capensis)

Family: Cunoniaceae

Common names: Red aldar, Red alder, Red cedar, Red els, Rode els, Rooi-els, Um qwashube, Umnqwashube

Distributed in: South Africa (Africa)

Common uses: Boat building (general), Carvings, Flooring, Food containers, Furniture, Heavy construction, Joinery, Light construction, Millwork, Moldings, Musical instruments, Paneling, Particleboard, Plywood, Poles, Posts, Railroad ties, Sporting Goods, Turnery, Vehicle parts, Wheel spokes

Tree size: Tree height is 40-50 m

Colors: the heart isReddish brown, Yellowand the sapwoodWhite, Yellow.The grain isWeak figure, the textureFine

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

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

Kiln Drying Rate: Naturally dries quickly

Drying Defects: Moderate surface checking, Moderate twist/warp

Ease of Drying: Rapidly

Cutting Resistance: Cutting Resistance with dry wood is easy

Gluing: Easy to glue

Mortising: Easy to mortise

Moulding: Easy to mould

Movement in Service: Easy to mould

Nailing: Fair to Good , Very Good to Excellent

Planing: Easy to plane

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Easy to machine

Veneering qualities: Veneers easily, Veneers moderately easy

Screwing: Fair to Good Results, Very Good to Excellent Results; Turning: Fairly Easy to Very Easy

Polishing: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 721 kg/m3
Bending Strength 654 1024 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength 121 kg/cm2
Stiffness 117 135 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 705 560 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9310 14566 psi
Density 45 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3916 6397 psi
Shearing Strength 1721 psi
Stiffness 1665 1923 1000 psi
Weight 44 35 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 9 %

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

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]Banks, C.H.,1970,The Durability of South African Wood and Wood Base Building Materials,South African Forestry Journal,No.75Bolza, 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 3Scott, 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.,1948,Timber Seasoning in South Africa,South African Forestry Department South Africa Bulletin No.32Scott, 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
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