Tag - hardness of wood

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Janka Hardness Scale

Janka Hardness Scale

The Janka hardness test measures the resistance of a type of wood to withstand denting and wear. It measures the force required to embed an 11.28 mm (0.444 in) steel ball into wood to half the ball’s diameter. This method leaves an indentation. The hardness of wood varies with the direction of the wood grain . Testing on the surface[…]

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