ANGUEUK (Ongokea gore)
Trade Name
Angueuk
Scientific Name
Ongokea gore Pierre
Family
APTANDRACEAE
Common Names
Kouéro (Côte d`Ivoire); Boleke (Zaire); Anghëk (Gabon); Sanu (Congo); Sanou (Congo); Sanu; Sano; Olekwa; Oleko; Oleke; Okeka; Nzieke; Ngore; Nessano; Nek; N`sano; Muleku; Muketu; Moungueke; Mobengui; Limuna; Kwi; Kuwi; Kuoto; Ksin; Kouero; Kosin; Isanu; Isano; Ibeka; Gbui; Elede; Ekuzo; Dimuma dileka; Dimuma; Buleka; Bui; Bobwe; Balla-tue; Anojek; Angeuk; Boleko (Zaire); Angueuk (Gabon); Andjek (Cameroon); Andjek (Gabon)
Scientific Name Synonyms
Ongokea klaineana Pierre; Ongokea kamerunensis Engl.; Aptandra gore Hua
Description Of The Tree
Botanical Description
The tree reaches a height of 43 m. The bole is cylindrical, straight and unbuttressed, sometimes lobed or swollen at the base. Trunk diameter attains up to 170 cm.
Natural Habitat
Ongokea gore occurs in periodically inundated areas, in river forests and mostly in rain forest.
Natural Distribution
West and Central Africa, from Liberia to the Democratic Republic of the Congo.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Tyloses thin walled. Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits coarse throughout the ray cell. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. Rays more than 10 per mm (abundant). Rays non-storied. Rays 1 to 2 seriate. Rays exclusively uniseriate. Prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Non-septate fibers. Fibers with distinctly bordered pits. Vessel-fiber pits similar to vessel-ray pits in size and shape.
-
Wood Macro Photo Tangential Plane
-
Wood Micro Photo Of Transversal Section
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is pale yellow, it is not clearly demarcated. Ribbon-like markings present on quarter-sawn faces.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Texture
The wood is mostly medium in texture.
Luster
The wood is described as low in luster.
Natural Durability
Durable to decay; this species can be utilized without preservative treatment for exterior joinery or similar uses. Resistant to termites attack. The heartwood is sensible to Lyctus attacks.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Internal Growth Stresses
For this species no growth stresses are reported.
Silica Content
Silica Content: This timber is reported to have a negligible silica content. Silica contents over 0.05% may affect wood processing. Silica Value: 0.01
Resistance To Impregnation
Difficult to treat with only a low penetration of the preservative products.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.77
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.88
Recommended Dry Kiln Schedule
FR-12
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1095
Stiffness (MOE) 12%MC (kgf/cm²)
159135
Compression parallel to fiber 12%MC (kgf/cm²)
679
Compression perpendicular to fiber 12%MC (kgf/cm²)
93
Shear strength radial 12%MC (kgf/cm²)
99
Janka hardness (side) 12%MC (kgf)
960
Janka hardness (end grain) 12%MC (kgf)
1012
Workability
Sawing
Sawing of this species requires powerful equipment.
Rotary Veneer Cutting
Suitable for slicing.
Sliced Veneer
Suitable for slicing.
Blunting Effect
Slight blunting effect; ordinary tools can be used for sawing and machining.
Machining
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Planing
Moderately easy; tools must be cautiously sharpened.
Moulding
Moderately easy; tools must be cautiously sharpened.
Turning
30
Boring
Moderately easy; tools must be cautiously sharpened.
Mortising
Moderately easy; tools must be cautiously sharpened.
Nailing
Pre-boring is necessary.
Gluing
Difficult to glue because of high density.
Sanding
Easy to perform; it gives good results.
Polishing
Can be polished without surface preparation.
Response To Hand Tools
Working with hand tools is difficult.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, crossties, HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, CONTAINERS, truck bodies, truck flooring, OTHER AND MUSICAL INSTRUMENTS, handicrafts
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Joists
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Frames
- 16 - Woods of the World
Steps
- 17 - Tree Conservation Database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Fittings
- 19 - Silica in Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
Ornaments
- 31 - Embassy of Colombia in Japan
Turned Articles
- 32 - Embassy of Cote d`Ivoire in Japan
Knife Handles
- 33 - Embassy of Gabon in Japan
Lasts
- 34 - Embassy of Indonesia in Japan
Truck Body
- 53 - Timbers of the New World
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Please Provide Information To View Producer Information