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Ditta 5
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African locust bean
African locust bean (Parkia filicoidea)

Family: Leguminosae

Common names: African locust bean, Atsho, Atshomi, Atshong-tsho, Budo, Budu, Dawa-dawa, Doho, Dori, Dschunuga, Du, Dua, Duo, Duwan, Elo, Ete-edi-uku, Ewa, Ewo, Gotschone, Igba, Igba-iyere, Irugba, Iyere, Joge, Kapaja, Katchuno, Kwachini, Lonchi, Maito, Mkunde, Mnienzi, Moto, Mudus, Mujojo, Narehi, Nune, Nunuhi, Ogirili-igala, Ojon, Ojon koran, Pipigbale, Runo, Sirni, Soronwo, Sulo, Sung, Ugba, Ullo, Wo, Wo-ti

Distributed in: Congo, Kenya (Africa)

Common uses: Agricultural implements, Boxes and crates, Cabinetmaking, Food containers, Fuelwood, Furniture, Handles: general, Ladders, Light construction, Matches, Particleboard, Plywood corestock, Plywood, Sporting Goods, Toys

Environment profile: Abundant/Secure

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isMottled figure, the textureUniformand the lusterMedium

Natural durability: Susceptible to marine borer attack, Very durable

Odor: Has an odor

LightInduced Color Change: Darker

Kiln Schedules: Drying (speed) is fast

Kiln Drying Rate: Very slow

Drying Defects: Moderate twist/warp, Splitting

Ease of Drying: Slowly

Tree Identification: Bole/stem form is buttressed

Comments: General finishing qualities are rated as satisfactory

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Easy to Very Easy

Moulding: Very Good to Excellent

Movement in Service: Very Good to Excellent

Nailing: Holds nails well, Very Good to Excellent

Planing: Very Good to Excellent

Resistance to Impregnation: Sapwood is permeable

Resistance to Splitting: Good

Response to hand tools: Responds Readily

Routing recessing: Fair to Good Results

Sanding: Fairly Easy to Very Easy

Veneering qualities: No steaming needed during bolt preparation., Suitable for peeling

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

Polishing: Very Good to Excellent; Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 496 kg/m3
Bending Strength 429 674 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength 109 kg/cm2
Stiffness 95 110 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 480 400 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 6111 9589 psi
Density 31 lbs/ft3
Maximum Crushing Strength 3916 6397 psi
Shearing Strength 1560 psi
Stiffness 1358 1568 1000 psi
Weight 30 25 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 8 %

Density (dry weight) = 31-37 lbs/cu. ft. 0
Density (dry weight) = 23-30 lbs/cu. ft.
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = low
Max. crushing strength = medium
Density (dry weight) = 38-45 lbs/cu. ft.
Bending strength (MOR) = low
Shrinkage, Tangential = small
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shrinkage, Radial = fairly large

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 LondonDalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the ColoniesEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaFrance - 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. FranceTanzania Forest Division,1967,The Weights and Shrinkage of some Local Timbers,Tanzania Forest Div. Util. Sect. Technical Note,No.25Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
*Come interpretare i dati (manleva su eventuali imprecisioni)