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The Janka hardness test (English: / ˈ dʒ æ ŋ k ə /; [1] German:), created by Austrian-born American researcher Gabriel Janka (1864–1932), measures the resistance of a sample of wood to denting and wear. [citation needed] It measures the force required to embed an 11.28-millimeter-diameter (7 ⁄ 16 in) steel ball halfway into a sample of ...
Mahogany is the national tree of the Dominican Republic [8] and Belize. [9] A mahogany tree with two woodcutters bearing an axe and a paddle also appears on the Belizean national coat of arms, under the national motto, Sub umbra floreo, Latin for "under the shade I flourish." [9] The specific density of mahogany is 0.55. [10]
The timber of Khaya is called "African mahogany", with wood properties generally regarded as the closest to genuine mahogany. [2]The seeds of K. senegalensis have an oil content of 52.5%, consisting of 21% palmitic acid, 10% stearic acid, 65% oleic acid, and 4% "unidentifiable acid" [3]
Swietenia macrophylla, commonly known as mahogany, [3] Honduran mahogany, [3] Honduras mahogany, [4] or big-leaf mahogany [5] is a species of plant in the Meliaceae family. It is one of three species that yields genuine mahogany timber ( Swietenia ), the others being Swietenia mahagoni and Swietenia humilis .
The name sapele comes from that of the city of Sapele in Nigeria, where there is a preponderance of the tree.African Timber and Plywood (AT&P), a division of the United Africa Company, had a factory at this location where the wood, along with Triplochiton scleroxylon, Obeche, mahogany, and Khaya was processed into timber which was then exported from the Port of Sapele worldwide.
Red oak rings in at a 1290 on the Janka scale (the higher the number, the stronger the board), and white oak comes in at 1360. Durability: Thanks to the wood’s open grain, wood stains take ...
Mahogany. Genuine mahogany (Swietenia) [7] West Indies mahogany (Swietenia mahagoni) Bigleaf mahogany (Swietenia macrophylla) Pacific Coast mahogany (Swietenia humilis) other mahogany African mahogany (Khaya spp.) Chinese mahogany (Toona sinensis) Australian red cedar, Indian mahogany (Toona ciliata) Philippine mahogany, calantis, kalantis ...
Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...