Brown Ebony / Guayacan
Common Name(s): Brown Ebony, Guayacan
Scientific Name: Caesalpinia spp. (C. granadillo, C. paraguariensis, C. pluviosa)
Distribution: Semi-arid regions of South America
Tree Size: 30-50 ft (10-15 m) tall, 2-3 ft (.6-1.0 m) trunk diameter
Average Dried Weight: 72 lbs/ft3 (1,160 kg/m3)
Specific Gravity (Basic, 12% MC): .91, 1.16
Janka Hardness: 3,590 lbf (15,970 N)
Modulus of Rupture: 22,910 lbf/in2 (158.0 MPa)*
Elastic Modulus: 2,712,000 lbf/in2 (18.70 GPa)*
Crushing Strength: 11,790 lbf/in2 (81.3 MPa)*
*values from tentative strength group assessment per South American Timbers
Shrinkage: Radial: 4.5%, Tangential: 7.7%, Volumetric: 12.7%, T/R Ratio: 1.7
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