Tropical Opepe Wood

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Tropical Opepe Wood
Categories:	Wood and Natural Products; Wood; Hardwood
Material Notes:	Data is based on small, clear, air-dried samples unless specified. Usual surface texture: Coarse Dimensional changes when dried lumber is subjected to variations in humidity during service: Small Resistance to fungal decay (Heartwood in ground contact): Very Durable (Over 25 years) Resistance to penetration by preservatives: Moderately resistant to resistant Common Applications: Heavy constructional work. Marine and freshwater use. Exterior joinery. Flooring
Key Words:	Nauclea Diderrichii; Lumber, Timber
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Physical Properties	Metric	English	Comments

Specific Gravity	0.630 g/cc	0.630 g/cc	Green, African Origin
Density	0.740 g/cc	0.0267 lb/in³	Air Dry (12-15% Moisture Content)

Mechanical Properties	Metric	English	Comments
Hardness, Wood Indentation	6800 N	1530 lb (f)	Side Hardness, Green, African Origin
	7300 N	1640 lb (f)	Side Hardness, 12% Moisture, African Origin
Modulus of Rupture	0.0938 GPa	13.6 ksi	Static Bending, Green, African Origin
	0.120 GPa	17.4 ksi	Static Bending, 12% Moisture, African Origin
	0.127 GPa	18.4 ksi	Static Bending
Flexural Modulus	11.9 GPa	1730 ksi	Static Bending, Green, African Origin
	13.4 GPa	1940 ksi	Static Bending, 12% Moisture, African Origin
	13.82 GPa	2004 ksi	Static Bending
Compressive Strength	51.6 MPa	7480 psi	Parallel to Grain, Green, African Origin
	59.0 MPa	8560 psi
	71.7 MPa	10400 psi	Parallel to Grain, 12% Moisture, African Origin
Machinability	50 %	50 %	Medium Relative to Other Wood
Shear Strength	13.1 MPa	1900 psi	Parallel to Grain, Green, African Origin
	17.1 MPa	2480 psi	Parallel to Grain, 12% Moisture, African Origin
Work to Maximum Load	0.0840 J/cm³	12.2 in-lb/in³	Static Bending, Green, African Origin
	0.0990 J/cm³	14.4 in-lb/in³	Static Bending, 12% Moisture, African Origin
Toughness	15.6 J	11.5 ft-lb	2 cm x 2 cm sample

Thermal Properties	Metric	English	Comments
Shrinkage	4.5 %	4.5 %	Radial Shrinkage Green to Oven Dry, African Origin
	7.5 %	7.5 %	Tangential; Green to Zero Moisture
	8.4 %	8.4 %	Tangential Shrinkage Green to Oven Dry, African Origin
	12.6 %	12.6 %	Volumetric Shrinkage Green to Oven Dry, African Origin

Descriptive Properties
Color	Yellow to orange yellow		Usual for heartwood

References for this datasheet.

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PTST160 / 71398

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