American Longleaf Pine Wood
Categories: Wood and Natural Products; Wood; Softwood
Material Notes: Softwood. Relatively easy to work with hand tools. 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 palustris; Lumber, Timber
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Physical PropertiesMetricEnglishComments
Density 0.550 g/cc0.0199 lb/in³Oven Dry Weight/Unseasoned Volume
 0.657 g/cc0.0237 lb/in³Unseasoned*
 
Mechanical PropertiesMetricEnglishComments
Hardness, Wood Indentation 2400 N540 lb (f)End. Force required to imbed a 0.444 inch steel ball to one-half its diameter
 2600 N585 lb (f)Side. Force required to imbed a 0.444 inch steel ball to one-half its diameter
Tensile Strength, Ultimate 2.00 MPa290 psiPerpendicular to Grain*
Modulus of Rupture 0.0600 GPa8.70 ksiStatic Bending*
 0.101 GPa14.6 ksiIn Bending
Flexural Yield Strength 37.2 MPa5400 psiFiber Stress at Elastic Limit; Static Bending*
 64.1 MPa9300 psiBending stress at proportional limit
Flexural Modulus 11.2 GPa1630 ksiStatic Bending*
 13.8 GPa2000 ksiIn Bending
Compressive Strength 4.14 MPa600 psiPerpendicular to Grain*
 19.6 MPa2840 psiParallel to Grain*
 30.3 MPa4390 psiMax Crushing Strength Parallel to Grain*
 57.9 - 58.6 MPa8400 - 8500 psiParallel to Grain
Poissons Ratio 0.3320.332µLR, 12% Moisture Content
 0.3420.342µTR, 12% Moisture Content
 0.3650.365µLT, 12% Moisture Content
 0.3840.384µRT, 12% Moisture Content
Shear Strength 7.38 MPa1070 psiParallel to Grain*
 10.3 MPa1490 psiOrientation Unknown
Impact 3.53.5in-lb/in³; Work to Elastic Limit; Unseasoned Sample; Impact Bending*
 1080010800psi; Fiber Stress at Elastic Limit; Unseasoned Sample; Impact Bending*
Work to Elastic Limit 0.00689 J/cm³1.00 in-lb/in³Static Bending*
Work to Maximum Load 0.0552 J/cm³8.00 in-lb/in³Static Bending*
Cleavage 32.0 kN/m183 lb/inTangential surface of failure, Unseasoned*
 33.0 kN/m188 lb/inRadial surface of failure, Unseasoned*
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 0.138 W/m-K0.960 BTU-in/hr-ft²-°FOven Dry
 0.173 W/m-K1.20 BTU-in/hr-ft²-°F12% Moisture Content
Shrinkage 5.3 %5.3 %Radial; Unseasoned to Oven Dry*
 7.5 %7.5 %Tangential; Unseasoned to Oven Dry*
 12.4 %12.4 %Volumetric; Unseasoned to Oven Dry*

References for this datasheet.

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