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Boring
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Luster
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Odor
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Resistance to Splitting
Response to Hand Tools
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Toxicity
Trade Name
Tree Identification
Tree Size
Turning
Varnishing
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Common Names
Awoura, Beli, Ekop, Ekop-beli, Erop-beli, Zebrali, Zebreli
Regions of Distribution
Africa
Countries of Distribution
[VIEW MAP]
Cameroon, Gabon
Common Uses
Bedroom suites, Boat building, Broom handles, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Carvings, Construction, Decorative plywood, Decorative veneer, Domestic flooring, Drawer sides, Excelsior, Factory construction, Figured veneer, Flooring, Furniture , Handles, Heavy construction, Interior construction, Interior trim, Joinery, Kitchen cabinets, Ladders , Lifeboats, Living-room suites, Millwork, Mine timbers, Moldings, Novelties, Office furniture, Paneling , Parquet flooring, Plywood, Radio - stereo - TV cabinets, Shafts/Handles, Shipbuilding, Structural plywood, Sub-flooring, Veneer: decorative
Environmental Profile
| Status has not been officially assessed |
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Heartwood Color
Alternating dark and light colored bands on quartersawn surfaces
Sapwood Color
| Pale yellow |
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| Clearly differentiated from the heartwood |
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Up to 6 inches (150 mm) wide
Grain
| Interlocked |
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| Figure |
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| Stripe (figure) |
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| Striped figure |
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| Interlocked |
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Texture
| Coarse |
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| Medium coarse to coarse |
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Luster
Natural Durability
| Moderately durable |
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| Non-resistant to powder post beetles |
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| Susceptible to insect attack |
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| Resistant to attack from termites (Isoptera) |
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| Resistant to attack from powder post (Lyctid & Bostrychid) beetles |
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| Durable |
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| Very durable |
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| Susceptible to attack from the pinhole borer beetle |
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| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
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| Moderately durable |
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Fairly resistant to powder post beetle and termite attack.
Heartwood resistance to decay is negligible
Odor
| No specific smell or taste |
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Toxicity
Drying Defects
The material air-seasons rapidly with little degrade. It also kiln dries with only slight checking and twisting. Some discoloration may occur during seasoning due to mold growth
Ease of Drying
| Seasons rapidly with little degrade |
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| Easy |
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Careful stacking is recommended to minimize degrade.
Tree Identification
| Bole/stem form is buttressed |
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| Bole/stem form is straight |
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| Bole/stem form is cylindrical |
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Tree Size
| Trunk diameter is 100-150 cm |
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| Tree height is 40-50 m |
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| Bole length is 20-30 m |
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| Sapwood width is 5-10 cm |
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| Tree height is 10-20 m |
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| Tree height is 20-30 m |
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| Tree height is 30-40 m |
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| Sapwood width is 0-5 cm |
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| Tree height is 50-60 m |
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| Bole length is 10-20 m |
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| Trunk diameter is 150-200 cm |
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| Trunk diameter is 200-250 cm |
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| Trunk diameter is 250-300 cm |
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| Trunk diameter is 300-350 cm |
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Comments
Reaction with Metals - The timber tends to develop stains when it comes in contact with iron and iron compounds under moist conditions.
Boring
Cutting Resistance
| Easy to saw |
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| Cutting Resistance with dry wood is easy |
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Gluing
| Fairly Easy to Very Easy |
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| Satisfactory gluing properties |
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| Moderate gluing properties |
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Mortising
Moulding
A cutting angle of 20 degrees has been suggested to reduce fuzzy surfaces during moulding operations
Movement in Service
| Excellent Stability - Small Movement |
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| Unstable, tends to move considerably after manufacture |
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Nailing
| Fairly Easy to Very Easy |
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| Good nailing properties |
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| Easy to nail |
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Planing
| Fairly Easy to Very Easy |
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| Planes well, to a good finish |
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Some grain tearing may occur during planing of quartersawn surfaces. A reduced cutting angle of 15 to 20 degrees has been suggested.
Resistance to Impregnation
| Resistant heartwood |
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| Resistant sapwood |
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| Heartwood is moderately resistant |
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Resistance to Splitting
Response to Hand Tools
| Easy to Work |
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| Fairly Difficult to Difficult to Work |
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| Easy to machine |
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Response to hand tools is good
Screwing
Turning
Steam Bending
Polishing
| Fair to Good Results |
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| Satisfactory results |
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Staining
| Fair to Good Results |
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| Satisfactory staining qualities |
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Varnishing
Strength Properties
| Bending strength (MOR) = very high |
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| Shrinkage, Tangential = fairly large |
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| Shrinkage, Radial = moderate |
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| Max. crushing strength = high |
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| Density (dry weight) = 38-45 lbs/cu. ft. |
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| Bending strength (MOR) = high |
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| Shrinkage, Volumetric = fairly large |
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| Shrinkage, Tangential = moderate |
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| Shrinkage, Tangential = large |
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| Shrinkage, Radial = small |
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| Shrinkage, Radial = fairly large |
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| Shearing strength (parallel to grain) = high |
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| Modulus of Elasticity (stiffness) = high |
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| Bending strength (MOR) = medium |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 13734 | 20519 | psi |
| Density | | 45 | lbs/ft3 |
| Maximum Crushing Strength | 6170 | 9574 | psi |
| Shearing Strength | | 2542 | psi |
| Stiffness | 2005 | 2302 | 1000 psi |
| Specific Gravity | | 0.72 | |
| Weight | 44 | 31 | lbs/ft3 |
| Radial Shrinkage | 4 | | % |
| Tangential Shrinkage | 8 | | % |
| Volumetric Shrinkage | 13 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 965 | 1442 | kg/cm2 |
| Density | | 721 | kg/m3 |
| Maximum Crushing Strength | 433 | 673 | kg/cm2 |
| Shearing Strength | | 178 | kg/cm2 |
| Stiffness | 140 | 161 | 1000 kg/cm2 |
| Specific Gravity | | 0.72 | |
| Weight | 705 | 496 | kg/m3 |
| Radial Shrinkage | 4 | | % |
| Tangential Shrinkage | 8 | | % |
References
Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research
Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry Department
Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data
Letouzey, R., Mouranche, R.,1952,Ekop du Cammeroun,C.T.F.T,France Publ.,No.4
Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.
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. 7
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