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HareriHareri
Hareri (Terminalia prunioides)

Family: Combretaceae

Common names: Hareri, Musangano, Mutau, Mutoo, Mwal-ambe, Mwanga, Mwangati, Mwangati-punda, Purple pod terminalia, Sterkbos

Distributed in: Kenya, Mozambique, Namibia, Tanzania, Zambia, Zimbabwe (Africa)

Common uses: Agricultural implements, Boat building (general), Flooring: industrial heavy traffic, Handles: general, Heavy construction, Ladders, Light construction, Mine timbers, Piling, Railroad ties, Sporting Goods, Toys, Turnery, Vehicle parts

Tree size: Tree height is 30-40 m

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodPaler than heartwood, Yellow.The grain isWavy, the textureMediumand the lusterMedium

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

Odor: Has an odor

Silica Content: Siliceous

Drying Defects: Severe end splitting, Severe surface checking

Ease of Drying: Variable

Tree Identification: Bole/stem form is straight

Blunting Effect: Moderate

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Easy to saw

Gluing: Fair to Good Results

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Nailing: Possible if prebored, Pre-Boring Recommended

Planing: Planes to a poor finish

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds Poorly

Routing recessing: Fairly Difficult to Very Difficult

Steam bending: Fair to Good Results

Turning: Fairly Difficult to Very Difficult

Polishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 1041 kg/m3
Bending Strength 954 1473 kg/cm2
Crushing Strength 485 699 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength 200 kg/cm2
Stiffness 152 175 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 1025 897 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 13576 20956 psi
Density 65 lbs/ft3
Maximum Crushing Strength 6899 9945 psi
Shearing Strength 2847 psi
Stiffness 2167 2494 1000 psi
Weight 64 56 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 9 %

Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = high
Modulus of Elasticity (stiffness) = high
Max. crushing strength = high
Density (dry weight) = >75 lbs/cu. ft
Bending strength (MOR) = high
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Density (dry weight) = 67-75 lbs/cu.ft
Density (dry weight) = 61-67 lbs/cu. ft

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchDale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards LondonWimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
*Come interpretare i dati (manleva su eventuali imprecisioni)