North American Quaking Aspen (Trembling Aspen) Wood

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North American Quaking Aspen (Trembling Aspen) Wood
Categories:	Wood and Natural Products; Wood; Hardwood
Material Notes:	Diffuse-Porous Hardwood. Data is based on small, clear, air-dried samples unless specified. Usual surface texture: Fine Dimensional changes when dried lumber is subjected to variations in humidity during service: Large Resistance to fungal decay (Heartwood in ground contact): Perishable (Under 5 years)/Non-durable (5 to 10 years) Resistance to penetration by preservatives: Extremely resistant Common Applications: Interior joinery, Matches Property values marked by an asterisk (*) have been taken from an unusually old reference source.
Key Words:	Populus tremuloides; Lumber, Timber
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Physical Properties	Original Value	Comments

Density	0.350 g/cc	Oven Dry Weight/Unseasoned Volume
	0.380 g/cc	Air Dry (12-15% Moisture Content)
	43.0 lb/ft³	Unseasoned*
Cell Length	1.00 mm	Mature Wood

Mechanical Properties	Original Value	Comments
Hardness, Wood Indentation	1200 N	End. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	1400 N	Side. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	1600 N	Side
Tensile Strength, Ultimate	1.80 MPa	Perpendicular to Grain
	180 psi	Perpendicular to Grain*
Modulus of Rupture	0.0580 GPa	Static Bending
	5.30 ksi	Static Bending*
Flexural Yield Strength	2900 psi	Fiber Stress at Elastic Limit; Static Bending*
Flexural Modulus	8.10 GPa	Static Bending
	840 ksi	Static Bending*
Compressive Strength	2.60 MPa	Perpendicular to Grain
	29.0 MPa	Parallel to Grain
	200 psi	Perpendicular to Grain*
	1620 psi	Parallel to Grain*
	2160 psi	Max Crushing Strength Parallel to Grain*
Poissons Ratio	0.022	µ_TL, 12% Moisture Content
	0.054	µ_RL, 12% Moisture Content
	0.374	µ_LT, 12% Moisture Content
	0.489	µ_LR, 12% Moisture Content
	0.496	µ_TR, 12% Moisture Content
Machinability	50 %	Medium Relative to Other Wood
Shear Strength	5.90 MPa	Orientation Unknown
	620 psi	Parallel to Grain*
Impact	2.5	in-lb/in³; Work to Elastic Limit; Unseasoned Sample; Impact Bending*
	6900	psi; Fiber Stress at Elastic Limit; Unseasoned Sample; Impact Bending*
Work to Elastic Limit	0.650 in-lb/in³	Static Bending*
Work to Maximum Load	6.90 in-lb/in³	Static Bending*

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.670 BTU-in/hr-ft²-°F	Oven Dry
	0.800 BTU-in/hr-ft²-°F	12% Moisture Content
Shrinkage	3.5 %	Radial; Green to Zero Moisture
	6.7 %	Tangential; Green to Zero Moisture
	11.5 %	Volumetric; Green to Zero Moisture

Descriptive Properties
Color	Grey, white to pale brown	Usual for heartwood

References for this datasheet.

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PTSA140 / 71252

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