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AMERICAN YELLOW BIRCH
V. Ryan © 2008
 
Betula alleghaniensis
Family: Betulaceae

Commercial names : Hard Birch, Betula Wood (Canada); Canadian Yellow Birch, Quebec Birch, American Birch (UK); Grey, Silver or Swamp Birch USA.

Distribution: Canada and USA.
 
 
 


General Description: There is a wide range of colour differences in unselected parcels, but when stained will not show a marked difference between light yellow sap and reddish brown heartwood. It is straight, close-grained, the texture is fine and even. Weight about 710 kg/m3 (44lb/ft3); specific gravity 0.71.

Mechanical Properties: The wood bending classification is very good, with high bending strength, crushing strength and resistance to shock loads.

Working Properties: The wood works fairly easily with only a moderate dulling effect on cutters and finishes smoothly if straight grained. Curly grained material, or disturbed grain around knots requires a reduced cutting angle of 15°. It glues well with care and takes stain and polish extremely well. Its uniform, dense surface, free from large groups of pores, makes it unequalled as a base for white enamelling and guarantees a permanent smooth finish.

Durability: Liable to attack by common furniture beetle. Moderately resistant to preservative treatment, but the sapwood is permeable. The wood is perishable.

Uses: Furniture, high grade joinery and flooring. Turnery, bobbins, shuttles, spools, cooperage, upholstery frames, high-grade plywood manufacture.

 

 
 
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