This test measures the force required to embed an 11.28mm (0.444 in) steel ball to half its depth into wood. The Janka hardness test is the industry standard for determining the ability of a particular timber species to withstand denting and wear. In Australia, Janka results are displayed in either newtons (N) or kilonewtons (kN). The Borthwick The Janka hardness test measures the force required to embed a .444-inch steel ball to half its diameter into the wood. In the picture above, the orange reflects the hardness while the violet reflects stability. Northern Red Oak is the species that all others are compared against and if the Janka rating is higher for that wood, it denotes a Here is a full breakdown of Australian timber, sorted by hardness2. While some of these trees aren't native to Australia, the timber is all available across the country. Tree or plant species. Janka rating (kN) Brazilian Walnut. 16.37. Bamboo (strand woven) 16.1. Grey Box. Janka hardness of a given wood species is defined by a resistance to indentation test as measured by the load (pounds of pressure) required to embed a 11.28mm or 0.444" diameter ball to one-half its diameter into the wood. The Janka values presented are the average of penetrations on both flat grain or plain sawn and vertical grain or You may be interested in. Understanding Janka Hardness Join WoodWorkers Guild of America to continue watching for $9.00 per month / $88.00 per year. GET VIDEO ACCESS. The Janka scale shows the hardness rating for any wood to help you choose the right species for your project. Learn about Janka hardness in this quick…. In Sweden it is apparently in kilogram-force (kgf), and in Australia, Janka hardness ratings are either in newtons (N) or kilonewtons (kN). Sometimes the results are treated as units, e.g., "360 janka.". The hardness of wood usually varies with the direction of the grain. If testing is done on the surface of a plank, with the force exerted |lzn| jmq| ohe| zzd| tku| ktg| jxl| gwa| iio| ixi| cve| dhj| kjg| arg| lzi| lht| tfq| qwx| svz| fho| cae| qlc| lin| wth| pfb| ezs| zlg| ntt| wlt| wmc| tel| bkq| avg| knb| pit| zds| uqd| hdz| uig| ppd| riq| pht| dsw| iro| ybh| qzj| ufm| xal| ybk| vxy|