Wood Hardness Chart Pdf

The janka hardness test was conducted by measuring the amount of force necessary to embed a 444 inch steel ball into side of the wood up to one half of its diameter to determine its hardness rating which is then recorded on the janka hardness scale. Gluing oily tropical hardwoods. A measure of the hardness of wood produced by a variation of the brinell hardness test.
wood hardness chart pdf

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Wood hardness chart pdf. There may be variations of more or less than 20 on the scale since this is a scientific test. Wood images for desktop backgrounds. Identifying and using hundreds of woods worldwide. The janka test measures the amount of force required to embed a 0444 steel ball into the wood to half of its diameter.

The test measures the force required to push a steel ball with a diameter of 1128 millimeters 0444 inches into the wood to a depth of half the balls diameter the diameter was chosen to produce a circle. Wood hardness janka hardness test. Relative hardness table for domestic and imported woods janka numbers for domestic exotic wood species the janka side hardness test measures the force required to press an 1128mm 0444 inch steel ball to half its diameter cross grain into a block of wood. Wood hardness chart species alphabetical hardness species by hardness hardness mahogany honduran 800 padauk 1725 mahogany santos 2200 tabaccowood 1750 maple hard north american 1450 rosewood bolivian 1780 maple ivory 1500 bamboo carbonized 1800 maple soft 999 hickory 1820 merbau 1925 pecan 1820 mesquite 2345 yellowheart 1820.

The janka scale is used to determine the relative hardness of particular domestic or exotic wood species. Finishing exotic and tropical hardwoods. Janka hardness pounds force australian buloke 5060 schinopsis balansae quebracho colorado red quebracho 4570 lignum vitae guayacan pockenholz 4500 patagonian rosewood curupay angico preto piptadenia macrocarpa brazilian tiger mahogany 3840 snakewood letterhout piratinera guinensis 3800 brazilian olivewood 3700 brazilian. The scale used in the table is pounds force.

Fraction and metric conversion chart. How to turn a. Woods with a higher rating are harder than woods with a lower rating. Drying wood at home.