Bastard yellowwood (Podocarpus gracilior)
Family: Podocarpaceae
Common names: Bastard yellowwood, Ben, Bene, Birbisa, East African podo, East African yellowwood, Falcate yellowwood, Mse, Mse mawe, Mufu, Musangira, Museneka, Musenene, Musengera, Musenuera, Muvengea, Mwavavi, Ol biribiri, Piri pirindi, Podo, Sapta, Saptet, Wiriwiri, Yellow-wood, Zigba
Distributed in: Ethiopia, Kenya, South Africa, Sudan, Tanzania, Uganda (Africa)
Common uses: Beehives, Boxes and crates, Cabinetmaking, Concrete formwork, Flooring, Food containers, Furniture, Joinery, Light construction, Model airplanes, Paneling, Plywood, Railroad ties, Tables, Turnery, Vats
Environment profile: Abundant/Secure
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodWhite, Yellow.The grain isStraight, the textureFineand the lusterSlightly lustrous
Natural durability: Susceptible to attack from termites (Isoptera), Susceptible to insect attack
Kiln Schedules: UK=A US=T2D4/T2D3 Fr=1
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Slight surface checking, Slight twist/warp
Ease of Drying: Reconditioning Treatement
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: Blunting effect on machining is slight
Boring: Moderately easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Easy to saw
Gluing: Fairly Easy to Very Easy
Mortising: Finishes well
Moulding: Good finishing
Movement in Service: Good finishing
Nailing: Holds nails well, Very Good to Excellent
Planing: Very Good to Excellent
Resistance to Impregnation: Heartwood is permeable
Resistance to Splitting: Very Poor
Response to hand tools: Responds Readily
Routing recessing: Satisfactory routing results
Sanding: Fair to Good Results
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Moderate
Screwing: Screwing yields good results, Very Good to Excellent Results; Turning: Satisfactory
Painting: Surface Preparation; Polishing: Satisfactory; Staining: Staining (Characteristic) = non-staining; Varnishing: Surface Preparation;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
528 |
kg/m3 |
Bending Strength |
445 |
699 |
kg/cm2 |
Crushing Strength |
264 |
435 |
kg/cm2 |
Hardness |
|
322 |
kg |
Impact Strength |
|
63 |
cm |
Shearing Strength |
|
81 |
kg/cm2 |
Stiffness |
71 |
84 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
2 |
|
% |
Weight |
512 |
400 |
kg/m3 |
Maximum Load |
0,49 |
0,7 |
cm-kg/cm3 |
Toughness |
|
109 |
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 6340 | 9945 | psi | Density | | 33 | lbs/ft3 | Hardness | | 712 | lbs | Impact Strength | | 25 | inches | Maximum Crushing Strength | 3768 | 6191 | psi | Shearing Strength | | 1153 | psi | Stiffness | 1017 | 1199 | 1000 psi | Toughness | | 95 | inch-lbs | Work to Maximum Load | 7 | 10 | inch-lbs/in3 | Weight | 32 | 25 | lbs/ft3 | Radial Shrinkage | 2 | | % | Tangential Shrinkage | 6 | | % | |
Density (dry weight) = 31-37 lbs/cu. ft. 0 Bending strength (MOR) = low 0 Max. crushing strength = medium 0 Modulus of Elasticity (stiffness) = very low 0 Hardness (side grain) = soft Shrinkage, Radial = very small Shearing strength (parallel to grain) = very low Shrinkage, Tangential = small Hardness (side grain) = very soft Toughness-Hammer drop (Impact Strength) = low Shearing strength (parallel to grain) = low Shrinkage, Tangential = moderate Toughness (total work) = very low Shrinkage, Radial = small Max. crushing strength = low Density (dry weight) = 38-45 lbs/cu. ft. Work to Maximum Load Toughness-Hammer drop (Impact Strength) = very low Shrinkage, Tangential = very small Shrinkage, Radial = moderate Density (dry weight) = 46-52 lbs/cu. ft. Density (dry weight) = 23-30 lbs/cu. ft. Bending strength (MOR) = medium
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