American black walnut (Juglans nigra)

Other names: Black walnut, American walnut

Distribution

-      Throughout eastern USA, but principal commercial region is the Central States 

-      Some European countries

General description

The sapwood of walnut is creamy white, while the heartwood is light brown to dark chocolate brown, occasionally with a purplish cast and darker streaks. Walnut can be supplied steamed, to darken sapwood or left unsteamed. The wood is generally straight grained, but sometimes with wavy or curly grain that produces an attractive and decorative figure.

Working properties

Walnut works easily with hand and machine tools, and nails, screws and glues well. It holds paint and stain very well and can be polished to an exceptional finish. It dries slowly, and care is needed to avoid kilning degrade. Walnut has good dimensional stability.

Physical properties

Walnut is a tough hard timber of medium density, with moderate bending and crushing strengths and low stiffness. It has a good steam bending classification.

Specific Gravity: 0.55 (12% M.C.)
Average Weight: 609 kg/m3 (12% M.C.)
Average Volumetric Shrinkage: 10.2% (Green to 6% M.C.)
Modulus of Elasticity: 11,584 MPa
Hardness: 4492 N

Thicknesses (commonly used in Egyptian market)

26mm , 40mm, 52mm

Main uses

Furniture, cabinet making, architectural interiors, high class joinery, doors, flooring,  and is also used to craft music boxes, jewelry cases and cas                         

 

 

 

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Walnut

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