American Black Ash (Brown Ash) Wood

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American Black Ash (Brown Ash) 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:	Fraxinus nigra; Lumber, Timber
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Physical Properties	Original Value	Comments

Specific Gravity	0.530 g/cc	Oven-dry to green volume ratio
Density	0.460 g/cc	Oven Dry Weight/Unseasoned Volume
	53.0 lb/ft³	Unseasoned*

Mechanical Properties	Original Value	Comments
Hardness, Wood Indentation	2400 N	Side. Force required to imbed a 0.444 inch steel ball to one-half its diameter
	2600 N	End. Force required to imbed a 0.444 inch steel ball to one-half its diameter
Tensile Strength, Ultimate	490 psi	Perpendicular to Grain*
Modulus of Elasticity	11.04 GPa	ASTM D143 at 12 wt% moisture content
Modulus of Rupture	0.08797 GPa	ASTM D143 at 12 wt% moisture content
	6.00 ksi	Static Bending*
Flexural Yield Strength	2600 psi	Fiber Stress at Elastic Limit; Static Bending*
Flexural Modulus	1020 ksi	Static Bending*
Compressive Strength	430 psi	Perpendicular to Grain*
	1620 psi	Parallel to Grain*
	2290 psi	Max Crushing Strength Parallel to Grain*
Shear Strength	870 psi	Parallel to Grain*
Impact	2.5	in-lb/in³; Work to Elastic Limit; Unseasoned Sample; Impact Bending*
	7200	psi; Fiber Stress at Elastic Limit; Unseasoned Sample; Impact Bending*
Work to Elastic Limit	0.420 in-lb/in³	Static Bending*
Work to Maximum Load	12.4 in-lb/in³	Static Bending*
Cleavage	46.0 kN/m	Tangential surface of failure, Unseasoned*
	48.0 kN/m	Radial surface of failure, Unseasoned*

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.150 W/m-K	ASTM D143 at 12 wt% moisture content
Shrinkage	5.0 %	Radial; Unseasoned to Oven Dry*
	7.8 %	Tangential; Unseasoned to Oven Dry*
	14.4 %	Volumetric; Unseasoned to Oven Dry*

References for this datasheet.

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PTSA000 / 71238

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