Search results
Results From The WOW.Com Content Network
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 ...
Quebracho [keˈβɾatʃo] is a common name in Spanish to describe very hard (density 0.9–1.3) wood tree species. The etymology of the name derived from quiebrahacha, or quebrar hacha, meaning "axe-breaker". The corresponding English-language term for such hardwoods is breakax or breakaxe. [1]
Xanthostemon verdugonianus is known to be the hardest Philippine hardwood species. Cutting a 70-cm thick tree with axes normally requires three hours, but cutting a Mangkono tree with the same diameter usually takes two to four days.
The wood is hard, heavy and self-lubricating, and has a Janka Hardness Score of 4500, [8] which is one of the hardest in the world. It can sink when placed in water. [9] There are fine ripple marks on the wood. [10] Leaves
The Guinness Book of World Records lists this tree as the world's heaviest wood, with a specific gravity of 1.49, similar to that of anthracite or dry earth. [8] It is known for its tendency to sink in water, unlike other wood materials. It is also one of the world's hardest woods according to the Janka hardness test. The timber has a good ...
As the name suggests, the wood from these trees is generally harder than that of softwoods, but there are significant exceptions. In both groups there is an enormous variation in actual wood hardness, with the range in density in hardwoods completely including that of softwoods; some hardwoods ( e.g. , balsa ) are softer than most softwoods ...
The wood is dense and very hard, difficult to plane, but drills, sands and turns well. It is termite resistant. It was once used for railway sleepers and is now prized for ornamental work and furniture. It burns very slowly with intense heat, and is often used for a fire which is intended to burn all night in order to keep wild animals at bay.
The wood is extremely hard, being one of the hardest woods in Northern America with a Janka hardness test of 1,700 lbf (7,560 N) [46] and specific gravity of 0.733 (733 kilograms per cubic metre or 45.7 pounds per cubic foot).