Tropical Iroko Wood

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Tropical Iroko Wood
Categories:	Wood and Natural Products; Wood; Hardwood
Material Notes:	Occasional deposits of stone may occur. Data is based on small, clear, air-dried samples unless specified. Usual surface texture: Medium 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: Extremely resistant Common Applications: Exterior and interior joinery, bench tops, constructional work
Key Words:	Chlorophora excelsa; Lumber, Timber
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Physical Properties	Original Value	Comments

Specific Gravity	0.540 g/cc	Green, African Origin
Density	0.620 g/cc	Air Dry (12-15% Moisture Content)

Mechanical Properties	Original Value	Comments
Hardness, Wood Indentation	3200 N	Side
	4800 N	Side Hardness, Green, African Origin
	5600 N	Side Hardness, 12% Moisture, African Origin
Tensile Strength, Ultimate	2.50 MPa	Perpendicular to Grain
	78.0 MPa	Axial
Modulus of Rupture	0.0703 GPa	Static Bending, Green, African Origin
	0.0885 GPa	Static Bending, 12% Moisture, African Origin
	0.111 GPa	Static Bending
Flexural Modulus	11.27 GPa	Static Bending
	8900 MPa	Static Bending, Green, African Origin
	10100 MPa	Static Bending, 12% Moisture, African Origin
Compressive Strength	33.9 MPa	Parallel to Grain, Green, African Origin
	52.3 MPa	Parallel to Grain, 12% Moisture, African Origin
	68.0 MPa
Machinability	25 %	Medium/difficult Relative to Other Wood
Shear Strength	9.00 MPa	Parallel to Grain, Green, African Origin
	10.8 MPa	Orientation Unknown
	12.4 MPa	Parallel to Grain, 12% Moisture, African Origin
Work to Maximum Load	0.0620 J/cm³	Static Bending, 12% Moisture, African Origin
	0.0720 J/cm³	Static Bending, Green, African Origin
Toughness	10.0 J	2 cm x 2 cm sample

Thermal Properties	Original Value	Comments
Shrinkage	0.10 %	Axial; Green to Zero Moisture
	2.8 %	Radial Shrinkage Green to Oven Dry, African Origin
	3.8 %	Tangential Shrinkage Green to Oven Dry, African Origin
	3.8 %	Radial; Green to Zero Moisture
	5.5 %	Tangential; Green to Zero Moisture
	8.8 %	Volumetric Shrinkage Green to Oven Dry, African Origin
	9.4 %	Volumetric; Green to Zero Moisture

Descriptive Properties
Color	Yellow-brown	Usual for heartwood

References for this datasheet.

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