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FAMILY NAME
Tabebuia avellandedae, Tabebuia ipe and
Tabebuia serratifolia of the Family Bignoniaceae.
COMMON NAMES
Ipe, pau d'arco, ipe tabaco, bethabara, lapacho, ebene
vert, amata prieto, ironwood, greenheart, amapa, cortez, guayacan, guayacan
polvillo, flor amarillo, madera negra, tahuari, lapacho negro, Brazilian
Walnut.
HEIGHT/WEIGHT
Trees routinely grow to 150 feet, and can reach 200
feet, with trunk diameters of 6 feet and boles clear to 60 feet or more.
Weight varies between 60 and 75 pounds per cubic foot with a specific
gravity of 1.08.
PROPERTIES
Usually air dries rapidly with very slight checking or
warping. Material can be difficult to work and difficult to saw. Hardness
of material can cause a blunting effect to cutting edges. High quality
carbide and diamond tipped blades are recommended as well as pre-drilling
when surface fastening. Machining material generates a fine, yellow dust
that may cause breathing problems and dermatitis. Ipe is highly resistant
to all insect and fungal attacks.
DIMENSIONAL STABILITY: Stable,
minimal checking and warping
MAINTENANCE: Low
FIRE RATING (NFPA): Class
A
RESISTANCE TO INSECTS & DECAY: High
MOVEMENT IN SERVICE: Low
WEIGHT IN LBS. (CU.FT): 60-75
lbs
BENDING STRENGTH (PSI): 26,000
MODULAS OF ELASTICITY (PSI): 3,308,000
HARDNESS (PSI): 3,650
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SPAN VALUES: Nominal Size
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40 lbs/sf
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50 lbs/sf
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60 lbs/sf
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100 lbs/sf
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1 x 4
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32”
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30”
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28”
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24”
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1 x 6
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38”
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34”
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32”
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28”
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5/4 x 6
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42”
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38”
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36”
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32”
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