Grain/ Texture: Grain is straight to slightly interlocked, with a uniformlly coarse texture. Janka hardness is 730 pounds of force. Prices: Natural Habitat - South Eastern United States Wood Hardness - 1700 Makore has the same properties and is known as the next level up in comparison to energies. It grows up to 180 ft. tall, with a domed or flat crown, and a trunk typically clear of … It is also a good indicator of how hard or easy a species is to saw or nail. Usually most common reactions simply include eye and skin irritation. Allergies/Toxicity: Although severe reactions are quite uncommon, Black Walnut has been reported as a sensitizer. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information. The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. However, read the description above for Black Limba. The Janka hardness test measures the lb/in2 required to embed a .444-inch steel ball to half its diameter in wood. Wood with such darker figuring is referred to as Black Limba, while plain unfigured wood is called White Limba. The wood of the Black Locust is one of the hardest in North America. The grain varies from straight to irregular and inerlocked. Country(s) of Origin: Tropical Western Africa Colour: Heartwood is a light yellowish to golden brown, sometimes with grey to nearly black streaks. Open pores require filling for a smooth surface. It is one of the best measures of the ability of a wood species to withstand denting and wear. The scale used in the table is pounds-force. Odor: Black Walnut has a faint, mild odor when being worked. Appearance: Black Limba is gray brown and irregularly streaked with dark brown or black and has a satiny luster. Black Limba (Terminalia superba) is a large tree native to tropical western Africa. This force is recorded in both pounds-force (lbf) and kilo-Newtons (kN). Janka Hardness 670 lbf (2,990 N) Colour/Appearance Heartwood is a light yellowish to golden brown, sometimes with grey to nearly black streaks and veins. It is also one of the few trees that grows well in urban areas as it can grow in poor soil conditions and can tolerate heavy levels of pollution. The Janka test measures the amount of force required to embed a 0.444" steel ball into the wood to half of its diameter. Medium coarse texture. Janka Hardness: 670 lbf. Black Limba. The Janka Side Hardness test measures the force required to press an 11.28mm (0.444 inch) steel ball to half its diameter cross-grain into a block of wood. Woods with a higher rating are harder than woods with a lower rating. Density: Average reported specific gravity is 0.45(ovendry weight/green volume), equal to an air-dried weight of 34 pcf. Black Limba is an exotic wood from Africa Lumber is separated for color and sold as white (without black streaks) or black (with black streaks). Black Limba (Click on an Item Photo for the net sizes) DESCRIPTION: The color has varying degrees of brown to black with a tinge of orange streaking; the heartwood may have grey-black streaks. The wood is relatively soft and easy to work.
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