The American Black walnut was usually called American walnut, or Black walnut for short. Native in North America only, very different from European walnut varieties, some of which are grown in Ontario, Canada, but not enough for commercial harvesting. Usually grown in the same area as juglans cinerea or white walnut.
walnut full stave butcher block
black walnut round table
walnut butcher block
The specific gravity of the wood is about 0.64. The wood grain is rough but uniform. Wood has good dimensional stability after drying
American black walnut compares with Europe, generally the color is darker, the difference between its heartwood and white wood is more obvious than European walnut.
The white wood of the American Black Walnut is milky white, and the heartwood is light brown to brown black, often with purple cracks and darker stripes.
Walnut is usually straight wood grain, sometimes with corrugated or curved wood grain, resulting in attractive, decorative graphics.
Walnut is a kind of medium density tough hard wood, with moderate flexural strength and fracture strength, low rigidity and good steam bending performance.
Walnut is easy to process by hand tools and machine,excellent nailling and adhesive performance ,also with excellent paint and dye retention ability, can get a fine surface after polishing.
Walnut drying is slow and requires careful care to avoid drying aging. Walnut has good dimensional stability and with strong corrosion resistance to core wood. Its white wood will be eroded by the pollinator beetle.
Common Name(s): Black Walnut
Scientific Name: Juglans nigra
Distribution: Eastern United States
Tree Size: 100-120 ft (30-37 m) tall, 2-3 ft (.6-1 m) trunk diameter
Average Dried Weight: 38 lbs/ft3 (610 kg/m3)
Specific Gravity (Basic, 12% MC): .51, .61
Janka Hardness: 1,010 lbf (4,490 N)
Modulus of Rupture: 14,600 lbf/in2 (100.7 MPa)
Elastic Modulus: 1,680,000 lbf/in2 (11.59 GPa)
Crushing Strength: 7,580 lbf/in2 (52.3 MPa)
Shrinkage: Radial: 5.5%, Tangential: 7.8%, Volumetric: 12.8%, T/R Ratio: 1.4
USA Black Walnut
Dining Table, Kitchen Countertop, Furniture panel
Full Stave: 800-4200x80-1500x18-50mm
Finger joint: 300-5000x100-1500x18-60mm