Birch species are generally small to medium-sized trees or shrubs, mostly of northern temperate and boreal climates. The simple leaves are alternate, singly or doubly serrate, feather-veined, petiolate and stipulate. The bark of all birches is characteristically marked with long, horizontal lenticels, and often separates into thin, papery plates, especially upon the paper birch. The color of birch wood is light brown to reddish brown, used as flooring, furniture, paper pulp, interior decoration materials, vehicle and boat equipment, plywood and so on. Cold-resistant, fast-growing, more immune to pests and diseases, used for reforestation, control of soil erosion, protection coverage or conservation of trees. More moist, fertile sand or loam, sowing and grafting and breeding are required.It is found in cold areas of the northern hemisphere.
Native to Russian birch is commonly known as (Russian Birch), because its texture is very close to North American cherry wood, so also called: European cherry wood.
Birch with delicate and slant soft wood. Yellowish-white slightly brown, obvious growth rings, wood body pure fine, slightly heavy and hard, fine structure, high mechanical strength, elastic, good hygroscopicity, it is easy to crack and warping for drying. Not very durable in perishable environments, more in the form of plywood. Birch is commonly used in special plywood, flooring, furniture, paper pulp, interior decoration materials, the equipment of vehicles and boat, plywood and so on. The furniture that produced is smooth and wear-resisting, grain clear.
The wood of birch is light brown to reddish-brown with a shiny surface and smooth grain.
The fiber has poor shear resistance and is easy to break completely. Not corrosion-resistant and not wear-resistant, easy to crack and warp after drying.
Common Name(s): Paper Birch
Scientific Name: Betula papyrifera
Distribution: Northern and central North America
Tree Size: 65-100 ft (20-30 m) tall, 2-3 ft (.6-1.0 m) trunk diameter
Average Dried Weight: 38 lbs/ft3 (610 kg/m3)
Specific Gravity (Basic, 12% MC): .48, .61
Janka Hardness: 910 lbf (4,050 N)
Modulus of Rupture: 12,300 lbf/in2 (84.8 MPa)
Elastic Modulus: 1,590,000 lbf/in2 (10.97 GPa)
Crushing Strength: 5,690 lbf/in2 (39.2 MPa)
Shrinkage: Radial: 6.3%, Tangential: 8.6%, Volumetric: 16.2%, T/R Ratio: 1.4
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Dining Table, Kitchen Countertop, Furniture panel
Full Stave: 800-4200x80-1500x18-50mm
Finger joint: 300-5000x100-1500x18-60mm