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Tasmanian myrtle
Tasmanian myrtle (Nothofagus cunninghamii)

Family: Fagaceae

Common names: Australian nothofagus, Beech, Beech myrtle, Mountain beech, Myrtle beech, New Guinea beech, Silver beech, Tasmanian beech, Tasmanian myrtle

Distributed in: Australia, New Zealand, Papua New Guinea (Oceania and S.E. Asia)

Distribution overview: Nothofagus is one of the two most important timber producing genera in the south temperate zone. Species in the genus are reported to occur in New Zealand, Tasmania, southeastern Australia, and South America. N. cunninghamii is distributed throughout Tasmania and parts of Victoria in Australia.

Common uses: Baskets, Bent Parts, Boat building, Broom handles, Brush backs & handles, Cabinetmaking, Canoes, Carvings, Chairs, Chests, Decorative plywood, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Factory flooring, Fine furniture, Flooring, Food containers, Furniture , Furniture components, Furniture squares or stock, Hatracks, Joinery, Kitchen cabinets, Lifeboats, Living-room suites, Mine timbers, Office furniture, Parquet flooring, Plywood, Pulp/Paper products, Pulpwood, Radio - stereo - TV cabinets, Rustic furniture, Shipbuilding, Stools, Turnery

Product sources: Myrtle beech is commonly available in Australia in the form of lumber, turnery squares and plywood. Logs are often of poor quality, which makes it less desirable for milling.

Environment profile: Status has not been officially assessed

Tree size: Tree height is 20-30 m

Colors: the heart isPinkish brown, Reddish brownand the sapwoodPaler than heartwood, White.The grain isWavy, the textureUniformand the lusterLustrous

Natural durability: Perishable, Sapwood is vulnerable to attack by powder-post beetles

Odor: No specific smell or taste

Kiln Schedules: T3 - C2 (4/4)

Drying Defects: Surface checks, Uneven Moisture Content

Ease of Drying: Variable results.

Comments: The species is not a true myrtle. Trees are the host of an orange-yellow fungus (Cytarria) which produces clusters about the size of a small apple, and which are sweet and edible

Blunting Effect: Moderate blunting effect on cutting edges

Boring: Very good to excellent results

Carving: Responds well to carving if tools are kept very sharp

Cutting Resistance: Easy to saw The timber works well in general, but it has a tendency to char in cross-cutting

Gluing: Fair to Good Results

Mortising: Poor to Very Poor

Moulding: Poor to Very Poor

Movement in Service: Poor to Very Poor

Nailing: Holds nails well, Pre-Boring Recommended

Planing: Responds well to hand and machine tools

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Responds well to hand tools

Sanding: Poor to Very Poor Results

Veneering qualities: Suitable for slicing into decorative veneers

Steam bending: Very good

Screwing: Good screw holding properties, Pre-boring recommended; Turning: Fairly Difficult to Very Difficult

Polishing: Good; Staining: Stains well ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,54 0,62
Density 705 kg/m3
Bending Strength 709 1081 kg/cm2
Crushing Strength 52 98 kg/cm2
Hardness 589 kg
Impact Strength cm
Shearing Strength 150 kg/cm2
Stiffness 119 138 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness 141 cm-kg
Static Bending 412 668 kg/cm2
Item Green Dry English
Bending Strength 10094 15386 psi
Crushing Strength 752 1406 psi
Density 44 lbs/ft3
Hardness 1299 lbs
Maximum Crushing Strength 4939 8413 psi
Shearing Strength 2136 psi
Static Bending 5860 9506 psi
Stiffness 1705 1975 1000 psi
Toughness 123 inch-lbs
Specific Gravity 0.54 0.62
Weight 43 35. lbs/ft3

Weight = heavy
Very dense
Resists denting and marring
Hardness = medium
Bending strength (MOR) = high
The species has high bending strength in the air-dry condition (about 12 percent moisture content). It compares favorably with Teak, which also has high bending strength. It has superior properties in compression parallel to grain in the air-dry condition than Teak, White oak, or Hard maple

Bolza, E. and N.H. Kloot.1963.The Mechanical Properties of 174 Australian Timbers.Division of Forest Products Technological Paper No. 25.Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.HMSO.1972.Handbook of Hardwoods, 2nd Edition.Revised by R.H. Farmer.Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Her Majesty's Stationery Office, London.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.Record, S.J. and R.W. Hess. 1943. Timbers of the New World. Published on the Charles Lathrop Pack Foundation, Yale University Press, New Haven, CT.Rendle, B.J. 1970. World Timbers, Volume Three, Asia & Australia & New Zealand. Ernest Benn Limited, London. Published by University of Toronto Press, Toronto, Canada.Wallis, N.K. 1963.Australian Timber Handbook. Sponsored by The Timber Development Associations of Australia, Angus & Robertson Ltd., Sydney, Australia.
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