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content="text/html; charset=ISO-8859-1" http-equiv="content-type"> Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. 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