North American Loblolly Pine Wood

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North American Loblolly Pine Wood
Categories:	Wood and Natural Products; Wood; Softwood
Material Notes:	Data is based on small, clear, air-dried samples unless specified. Property values marked by an asterisk (*) have been taken from an unusually old reference source.
Key Words:	Pinus Taeda; Lumber, Timber
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Physical Properties	Original Value	Comments

Density	0.500 g/cc	Oven Dry Weight/Unseasoned Volume
	54.0 lb/ft³	Unseasoned*
Cell Length	3.60 mm	Mature Wood

Mechanical Properties	Original Value	Comments
Hardness, Wood Indentation	1800 N	End. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	2000 N	Side. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	3100 N	Side
Tensile Strength, Ultimate	3.20 MPa	Perpendicular to Grain
	280 psi	Perpendicular to Grain*
Modulus of Rupture	0.0880 GPa	Static Bending
	7.50 ksi	Static Bending*
Flexural Yield Strength	4400 psi	Fiber Stress at Elastic Limit; Static Bending*
Flexural Modulus	12.42 GPa	Static Bending
	1380 ksi	Static Bending*
Compressive Strength	6.80 MPa	Perpendicular to Grain
	49.0 MPa	Parallel to Grain
	550 psi	Perpendicular to Grain*
	2870 psi	Parallel to Grain*
	3580 psi	Max Crushing Strength Parallel to Grain*
Poissons Ratio	0.292	µ_LT, 12% Moisture Content
	0.328	µ_LR, 12% Moisture Content
	0.362	µ_TR, 12% Moisture Content
	0.382	µ_RT, 12% Moisture Content
Shear Strength	9.40 MPa	Orientation Unknown
	900 psi	Parallel to Grain*
Impact	3.1	in-lb/in³; Work to Elastic Limit; Unseasoned Sample; Impact Bending*
	9500	psi; Fiber Stress at Elastic Limit; Unseasoned Sample; Impact Bending*
Work to Elastic Limit	0.810 in-lb/in³	Static Bending*
Work to Maximum Load	8.00 in-lb/in³	Static Bending*
Toughness	18.1 J	Radial
	29.5 J	Tangential

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.860 BTU-in/hr-ft²-°F	Oven Dry
	1.00 BTU-in/hr-ft²-°F	12% Moisture Content
Shrinkage	4.8 %	Radial; Green to Zero Moisture
	7.4 %	Tangential; Green to Zero Moisture
	12.3 %	Volumetric; Green to Zero Moisture

References for this datasheet.

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