North American Slippery Elm (Red Elm) Wood

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North American Slippery Elm (Red Elm) Wood
Categories:	Wood and Natural Products; Wood; Hardwood
Material Notes:	Ring-Porous Hardwood Property values marked by an asterisk (*) have been taken from an unusually old reference source.
Key Words:	Ulmus rubra; Lumber, Timber
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Physical Properties	Metric	English	Comments

Density	0.480 g/cc	0.0173 lb/in³	Oven Dry Weight/Unseasoned Volume
	0.897 g/cc	0.0324 lb/in³	Unseasoned*

Mechanical Properties	Metric	English	Comments
Hardness, Wood Indentation	2900 N	652 lb (f)	Side. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	3300 N	742 lb (f)	End. Force required to imbed a 0.444 inch steel ball to one-half its diameter
Tensile Strength, Ultimate	4.48 MPa	650 psi	Perpendicular to Grain*
Modulus of Rupture	0.0552 GPa	8.00 ksi	Static Bending*
Flexural Yield Strength	27.6 MPa	4000 psi	Fiber Stress at Elastic Limit; Static Bending*
Flexural Modulus	8.48 GPa	1230 ksi	Static Bending*
Compressive Strength	3.52 MPa	510 psi	Perpendicular to Grain*
	19.6 MPa	2840 psi	Parallel to Grain*
	22.9 MPa	3320 psi	Max Crushing Strength Parallel to Grain*
Shear Strength	7.65 MPa	1110 psi	Parallel to Grain*
Impact	3.4	3.4	in-lb/in³; Work to Elastic Limit; Unseasoned Sample; Impact Bending*
	9200	9200	psi; Fiber Stress at Elastic Limit; Unseasoned Sample; Impact Bending*
Work to Elastic Limit	0.00565 J/cm³	0.820 in-lb/in³	Static Bending*
Work to Maximum Load	0.106 J/cm³	15.4 in-lb/in³	Static Bending*
Cleavage	70.0 kN/m	399 lb/in	Radial surface of failure, Unseasoned*
	74.0 kN/m	422 lb/in	Tangential surface of failure, Unseasoned*

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.127 W/m-K	0.880 BTU-in/hr-ft²-°F	Oven Dry
	0.159 W/m-K	1.10 BTU-in/hr-ft²-°F	12% Moisture Content
Shrinkage	4.9 %	4.9 %	Radial; Unseasoned to Oven Dry*
	8.9 %	8.9 %	Tangential; Unseasoned to Oven Dry*
	13.8 %	13.8 %	Volumetric; Unseasoned to Oven Dry*

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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PTSA160 / 71254

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