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Antiaris
Antiaris (Antiaris toxicaria)

Family: Moraceae

Common names: Akeche, Ako, Andoum, Antiaris, Bonkonko, Chenchen, Ipoh, Kirundu, Ogiovu, Oro, Tenek, Tsangu, Upas

Distributed in: Angola, Benin, Cameroon, Central African Republic, Gabon, Gambia, Ghana, Guinea Bissau, Guinea, Indonesia, Ivory Coast, Liberia, Malaysia, Nigeria, Papua New Guinea, Senegal, Sierra Leone, Togo, Uganda, Zaire (Africa, Oceania and S.E. Asia)

Distribution overview: Burma, Thailand, Laos, Vietnam, Cambodia, Indomalesia. Also in west and central Africa, specifically Kenya, and generally in wet zones.

Common uses: Boxes and crates, Building construction, Construction, Core Stock, Decorative veneer, Furniture , Furniture components, Joinery, Light construction, Packing cases, Paneling , Plywood, Veneer

Product sources: The ITTO reports that timber from this species is produced occasionally and exported in low volumes.

Environment profile: Secure in many areas of its range

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellowish gray and the sapwoodWhite, Yellow.The grain isStraight to interlocked, the textureUnevenand the lusterMedium

Natural durability: Very little natural resistance to attack by fungi and other organisms , susceptible to sap stain

Odor: Unpleasant odor which disappears after seasoning

Kiln Schedules: T2-D4(4/4)T2-D3(8/4)Us Schedule A United Kingdom

Drying Defects: Kiln-Drying produces better results , Natural tendency to stain

Ease of Drying: Rapidly

Blunting Effect: Slight dulling effect on cutting tools

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Sharp cutters are required to prevent crumbling

Gluing: Satisfactory gluing properties

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Fair to Good , Satisfactory

Planing: Works rather easily dulling

Resistance to Impregnation: Responds readily to preservative treatment by either open tank or pressure methods

Routing recessing: Fairly Easy to Very Easy

Veneering qualities: Suitable for paneling and furniture , Suitable for slicing

Steam bending: Poor to Very Poor Results

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

Staining: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,35
Density kg/m3
Bending Strength 328 500 kg/cm2
Crushing Strength 201 350 kg/cm2
Hardness 222 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 55 66 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 4 %
Weight 400 320 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 4675 7125 psi
Hardness 490 lbs
Maximum Crushing Strength 2871 4988 psi
Stiffness 794 941 1000 psi
Specific Gravity 0.35
Weight 25 20. lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 12 %

Stifness=Very low
Soft
Shock resistance=very low
Medium weight
Crushing strength = medium
Bending strength (MOR) = low
Antiaris is described as a low-grade timber which is similar to Obeche (Triplochiton scleroxylon ), but is generally considered to be inferior

Boone, R.S., C.J. Kozlik, P.J. Bois and E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Woods: Temperate and Tropical. United States Department of Agriculture, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, WisconsinChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Desch, H. E. 1954. Manual of Malayan Timbers - Volume II. Malayan Forest Records, No. 15. Malaya Publishing House Ltd., Singapore.Keay, R.W.J.1989. Trees of Nigeria.Revised Version of Nigerian Trees. Clarendon Press, Oxford.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc. Fresno, CaliforniaPatterson, D. 1988. Commercial Timbers of the World. Fifth Edition. Gower Technical Press, Aldershot, UK. ix + 339 pp.WCMC. 1992. Conservation Status Listing: Trees and Timbers of the World. World Conservation Monitoring Center (WCMC, Plants Program, 219 Huntingdon Road, Cambridge, CB3 ODL, United Kingdom.
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