River birch

Wood species : River birch
English name : River birch
Alternative name : Black birch, Water birch
Botanical name : Betula nigra
Type : Hardwood
Tree size / Height : 20 - 30 m
Trunk / Diameter : 0,6 - 1,0 m
Location : United States
More information : Wikipedia
Specific gravity : 0.49
Specific gravity (12% MC) : 0,63
Janka Hardness : 4320 lbf
Modulus of rupture : MPa
Elastic Modulus : GPa
Crushing Strength : MPa
Shrinkage : Radial : 4,7%
Tangential : 9,2%
Volumetric : 13,5%
T/R Ratio : 2,0
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