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Blunting Effect
Boring
Carving
Certified Source
Common Names
Common Uses
Cutting Resistance
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Schedules
Luster
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Odor
Painting
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Size
Turning
Veneering Qualities
| Scientific
Name Lophira spp. Trade Name Azobe Family Name Ochnaceae |
|
Common Names
Azobe, Bongossi, Ekki
Regions of Distribution
Africa
Common Uses
Cabinetmaking, Charcoal, Furniture, Heavy construction, Tool handles, Vehicle parts
Environmental Profile
| Endangered |
Heartwood Color
| Brown | ||||||||||||
| Yellow |
Sapwood Color
| Red | ||||||||||||
| Brown |
Grain
| Interlocked |
| Interlocked |
Texture
| Fine | ||||||||||||
| Even or uniform | ||||||||||||
| Medium | ||||||||||||
| Medium coarse to coarse | ||||||||||||
| Coarse |
Luster
| High |
Natural Durability
| Durable | ||||||||||||
| Very durable |
Odor
| Has a taste |
Kiln Schedules
| Dry at a slow speed |
Drying Defects
| Splitting | ||||||||||||
| Extension of Existing Shakes | ||||||||||||
| Distortion | ||||||||||||
| Severe surface checking | ||||||||||||
| Severe end splitting |
Ease of Drying
| Fairly Easy | ||||||||||||
| Reconditioning Treatement | ||||||||||||
| Difficult |
Tree Size
| Tree height is 30-40 m | ||||||||||||
| Trunk diameter is 100-150 cm |
Certified Source
| Certified Source |
Blunting Effect
| Little |
Boring
| Fair to good results | ||||||||||||
| Fairly easy to very easy |
Carving
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Cutting Resistance
| Easy to saw | ||||||||||||
| Cutting Resistance with green wood is difficult | ||||||||||||
| Cutting Resistance with dry wood is difficult |
Gluing
| Fair to Good Results | ||||||||||||
| Easy to glue |
Mortising
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Moulding
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Movement in Service
| Excellent Stability - Small Movement | ||||||||||||
| Fair to Good Stability - Medium Movement |
Nailing
| Fairly Easy to Very Easy | ||||||||||||
| Fair to Good Results | ||||||||||||
| Poor to Very Poor Results | ||||||||||||
| Difficult to nail |
Planing
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Resistance to Impregnation
| Resistant sapwood | ||||||||||||
| Resistant heartwood |
Response to Hand Tools
| Responds Readily | ||||||||||||
| Difficult to machine |
Routing & Recessing
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Screwing
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Turning
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Veneering Qualities
| Suitable for slicing |
Steam Bending
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Painting
| Surface Preparation | ||||||||||||
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Polishing
| Surface Preparation | ||||||||||||
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy |
Staining
| Fair to Good Results | ||||||||||||
| Fairly Easy to Very Easy | ||||||||||||
| Finish is generally satisfactory |
Strength Properties
| Shrinkage, Tangential = small | ||||||||||||
| Shrinkage, Radial = moderate | ||||||||||||
| Modulus of Elasticity (stiffness) = high | ||||||||||||
| Max. crushing strength = high | ||||||||||||
| Hardness (side grain) = very hard | ||||||||||||
| Bending strength (MOR) = medium |
Numerical Data
| Item | Green | Dry | English |
| Bending Strength | 13576 | 20956 | psi |
| Hardness | 2940 | lbs | |
| Maximum Crushing Strength | 6899 | 9945 | psi |
| Stiffness | 2167 | 2494 | 1000 psi |
| Radial Shrinkage | 4 | % | |
| Tangential Shrinkage | 6 | % | |
| Item | Green | Dry | Metric |
| Bending Strength | 954 | 1473 | kg/cm2 |
| Hardness | 1333 | kg | |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Stiffness | 152 | 175 | 1000 kg/cm2 |
| Radial Shrinkage | 4 | % |
References
Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48
Gerry, E., Miller, C.M.,1954,Triplochiton scleroxylon,U.S.A. Department of Agriculture, Forest Products Laboratory, Madison,Report,No. 1974,1-5
U.S.D.A. Forest Service,1952,Foreign Woods Imported into the U.S.,F.P.L. Madison Rep., No. R1903-12