Tectona grandis L.f..
Teak, Teca, Teck.
Teak comes from plantations in Indonesia and Asia.
Teak is rated as Exterpark WFA.
COLOR: yellow-white to light-grey.
GRAIN: very thick
HARDNESS: 4.0-4.2 semi-hard
CONTRACTION: few nerved
Volumetric: 7.9% (0.34)
Tangential: 2.5-5.0% (0.24-0.29)
Radial: 1.5-2.7% (0.13-0.15)
DURABILITY: from moderately to very resistant against the action of fungi, and from sensible to moderately resistent againt the action of termites.
Static bending - bending strenght: 85 -110 N/mm²
Elasticity Module: 10.000 - 13.700 N/mm²
Axial compression: 52-80 N/mm²
Perpendicular compression: 6 N/mm² (ASTM)
Shear stress: 8.2-9.4 N/mm²