European Black Walnut

Specification:

Common Name(s): English Walnut, Circassian Walnut, European Walnut, French Walnut, Common Walnut

Scientific Name: Juglans regia

Distribution: Eastern Europe and western Asia

Tree Size: 80-115 ft (24-35 m) tall, 5-6 ft (1.5-2.0 m) trunk diameter

Average Dried Weight: 40 lbs/ft3 (640 kg/m3)

Specific Gravity (Basic, 12% MC): .52, .64

Janka Hardness: 1,220 lbf (5,410 N)

Modulus of Rupture: 16,160 lbf/in2 (111.5 MPa)

Elastic Modulus: 1,568,000 lbf/in2 (10.81 GPa)

Crushing Strength: 7,280 lbf/in2 (50.2 MPa)

Shrinkage: Radial: 5.5%, Tangential: 7.5%, Volumetric: 13.0%, T/R Ratio: 1.4