Botanical Name Juglans nigra Other Names Black Walnut Origin North America Sapwood Colour NA Heartwood Colour NA Grain NA Texture NA Common Uses Veneer applications Density kg/m3 630-650 Specific gravity - - Hardness N - Bending Strength N/mm2 - Stiffness N/mm2 - Radial shrinkage % - Tangential shrinkage % - Working Properties Stability - Bending - Machining - Screwing - Gluing - Painting - Sanding - Staining - xxxx = excellent xxx = good xx = fair x = not good