North American Engelmann Spruce Wood

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North American Engelmann Spruce Wood
Categories:	Wood and Natural Products; Wood; Hardwood
Material Notes:	Softwood with resin canals. 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:	Picea engelmannii; Lumber, Timber
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Physical Properties	Metric	English	Comments

Density	0.350 g/cc	0.0126 lb/in³	Air Dry (12-15% Moisture Content)
Cell Length	3.00 mm	0.118 in	Mature Wood

Mechanical Properties	Metric	English	Comments
Hardness, Wood Indentation	1700 N	382 lb (f)	Side
Tensile Strength, Ultimate	2.40 MPa	348 psi	Perpendicular to Grain
	88.0 MPa	12800 psi	Axial
Modulus of Rupture	0.0290 GPa	4.20 ksi	Static Bending*
	0.0640 GPa	9.28 ksi	Static Bending
Flexural Yield Strength	17.2 MPa	2500 psi	Fiber Stress at Elastic Limit; Static Bending*
Flexural Modulus	8.90 GPa	1290 ksi	Static Bending
Compressive Strength	2.00 MPa	290 psi	Perpendicular to Grain*
	2.80 MPa	406 psi	Perpendicular to Grain
	12.0 MPa	1740 psi	Parallel to Grain*
	13.7 MPa	1980 psi	Max Crushing Strength Parallel to Grain*
	31.0 MPa	4500 psi	Parallel to Grain
Poissons Ratio	0.058	0.058	µ_TL, 12% Moisture Content
	0.083	0.083	µ_RL, 12% Moisture Content
	0.255	0.255	µ_TR, 12% Moisture Content
	0.422	0.422	µ_LR, 12% Moisture Content
	0.462	0.462	µ_LT, 12% Moisture Content
	0.53	0.53	µ_RT, 12% Moisture Content
Shear Strength	4.07 MPa	590 psi	Parallel to Grain*
	8.30 MPa	1200 psi	Orientation Unknown
Toughness	12.5 J	9.22 ft-lb	Radial
	20.4 J	15.0 ft-lb	Tangential
Cleavage	19.0 kN/m	108 lb/in	Radial surface of failure, Unseasoned*
	24.0 kN/m	137 lb/in	Tangential surface of failure, Unseasoned*

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.0908 W/m-K	0.630 BTU-in/hr-ft²-°F	Oven Dry
	0.108 W/m-K	0.750 BTU-in/hr-ft²-°F	12% Moisture Content
Shrinkage	3.4 %	3.4 %	Radial; Green to Zero Moisture
	6.6 %	6.6 %	Tangential; Green to Zero Moisture
	10.4 %	10.4 %	Volumetric; Green to Zero Moisture

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PTSA120 / 71250

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