

Ash (Fraxinus spp.)
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Machining | ![]() |
Nailing | ![]() |
Screwing | ![]() |
Gluing | ![]() |
Finishing | ![]() |
Ash has very good overall strength properties relative to its weight. Excellent shock resistance and good for steam bending.
Strength And Mechanical Properties (inch-pound) (a) |
|
Moisture content | 12% |
Specific Gravity (b) |
0.45-0.60 |
Static Bending Modulus of Rupture (lbf/in2) |
6,000-15,000 |
Static Bending Modulus of Elasticity (c) (106 lbf/in2) | 1.04-1.74 |
Static Bending Work to Maximum Load (in-lbf/in3) | 11.8-16.6 |
Impact Bending to Grain (in) | 43 |
Compression Parallel to Grain (lbf/in2) | 2,300-7,410 |
Compression Perpendicular to Grain (lbf/in2) | 350-1,420 |
Shear Parallel to Grain (lbf/in2) | 860-2,030 |
Tension Perpendicular to Grain (lbf/in2) | 940 |
Side Hardness (lbf) | 1,320 |
a) Results of tests on small clear specimens in the green and air-dried conditions. Definition of properties; impact bending is height of drop that causes complete failure, using 0.71-kg (50 lb.) hammer; compression parallel to grain is also called maximum crushing strength; compression perpendicular to grain is fiber stress at proportional limit; shear is maximum shearing strength; tension is maximum tensile strength; and side hardness is hardness measured when load is perpendicular to grain.
b) Specific gravity is based on weight when oven dry and volume when green or at 12% moisture content
c) Modulus of elasticity measured from a simply supported, center-loaded beam, on a span depth ratio of 14/1. To correct for shear reflection, the modulus can be increased by 10%.
Reprinted with permission from Hardwood Manufacturers Association
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