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Yellow Birch Wooden Wheel Chocks
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- Item #: Yellow Birch Wooden Wheel Chocks
- Manufacturer: Zaviation
- Common Name(s): Yellow Birch
- Scientific Name: Betula alleghaniensis
- Grows: North Eastern North America
- Average Dried Weight: 43 lbs/ft3 (690 kg/m3)
- Specific Gravity (Basic, 12% MC): .55, .69
- Janka Hardness: 1,260 lbf (5,610 N)
- Modulus of Rupture: 16,600 lbf/in2 (114.5 MPa)
- Elastic Modulus: 2,010,000 lbf/in2 (13.86 GPa)
- Crushing Strength: 8,170 lbf/in2 (56.3 MPa)
- Shrinkage: Radial: 7.3%, Tangential: 9.5%, Volumetric: 16.8%, T/R Ratio: 1.3
