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Kaudamu
Kaudamu (Myristica chartacea)

Family: Myristicaceae

Common names: Darah darah, Duguan, Kaudamu, Kumpang, Mutwinda, Penarahan, Tambolau

Distributed in: Fiji [Polynesia], Fiji, Indonesia, Malaysia, Philippines (Oceania and S.E. Asia)

Distribution overview: Species in the Myristica genus are reported to occur in the Indo-Malayan region, Indonesia, the Philippines, and Western Pacific Islands.

Common uses: Balusters, Bedroom suites, Boxes and crates, Building construction, Building materials, Cabinetmaking, Carvings, Casks, Chairs, Chests, Concealed parts (Furniture), Construction, Core Stock, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Handles: general, Hardboards, Hatracks, Interior construction, Joinery (external): ground contact, Joinery, Kitchen cabinets, Ladders, Light construction, Living-room suites, Moldings, Office furniture, Packing cases, Paneling, Particleboard, Plywood, Tool handles, Toys, Turnery, Vehicle parts, Veneer

Product sources: Kaudamu is the trade name of timber produced by four Myristica species in Fiji. The timbers are very similar and are often mixed and marketed together under the same trade name.

Environment profile: Status has not been officially assessed

Tree size: Boles are described as often straight and cylindrical.

Colors: the heart isRed, Yellowand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureVery fineand the lusterHigh

Natural durability: Susceptible to attack from termites (Isoptera), Susceptible to marine borer attack

Odor: No specific smell or taste

Kiln Schedules: T10 - D4S (4/4) US

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Slight collapse and honeycomb, Surface checking and slight collapse are common

Ease of Drying: Thick Stock Requires Care

Boring: Fairly difficult to very difficult

Carving: Good results

Cutting Resistance: Yields smooth clean surfaces

Mortising: Fairly Difficult to Very Difficult

Moulding: Very good moulding properties

Movement in Service: Very good moulding properties

Nailing: Nails hold poorly

Planing: Yields clean surfaces

Resistance to Impregnation: Sapwood is resistant

Resistance to Splitting: Poor

Response to hand tools: Responds well to hand tools

Routing recessing: Good in both routing and recessing.

Sanding: Good sanding properties

Veneering qualities: Easy to cut

Turning: Yields clean surfaces

Polishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,43 0,48
Density 592 kg/m3
Bending Strength 487 841 kg/cm2
Crushing Strength 37 75 kg/cm2
Hardness 391 kg
Impact Strength 58 cm
Shearing Strength 98 kg/cm2
Stiffness 89 119 1000 kg/cm2
Tangential Shrinkage 8 %
Radial Shrinkage 4 %
Weight 576 464 kg/m3
Maximum Load cm-kg/cm3
Toughness 93 cm-kg
Static Bending 265 546 kg/cm2
Item Green Dry English
Bending Strength 6929 11965 psi
Crushing Strength 529 1068 psi
Density 37 lbs/ft3
Hardness 864 lbs
Impact Strength 23 inches
Maximum Crushing Strength 3534 6740 psi
Shearing Strength 1395 psi
Static Bending 3783 7771 psi
Stiffness 1270 1698 1000 psi
Toughness 81 inch-lbs
Specific Gravity 0.43 0.48
Weight 36 29 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 8 %
Volumetric Shrinkage 12 %

Max. crushing strength = medium
Bending strength (MOR) = low
Density (dry weight) = 31-37 lbs/cu. ft.
Modulus of Elasticity (stiffness) = very low
Shrinkage, Tangential = large
Shrinkage, Radial = large
Modulus of Elasticity (stiffness) = low
Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Shearing strength (parallel to grain) = very low
Shearing strength (parallel to grain) = low
Density (dry weight) = 38-45 lbs/cu. ft.
Very dense
Shrinkage, Tangential = moderate
Shrinkage, Radial = moderate
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = low
Heavy
Compression strength (parallel to grain) = high
Bending strength (MOR) = medium
The bending strength of air-dried wood of the species is similar to that of Teak, which is considered to be strong. Teak, White oak, and Hard maple have high crushing strength. It is moderately hard and resistant to wearing and marring

Alston, A.S.,1966,Powder Post Beetle Lyctus Species,Fiji Forestry Department, Suva. Fiji timbers and their uses No.6Bolza, E., Kloot, N.H.,1972,The Mechanical Properties of 56 Fijian Timbers,Australia C.S.I.R.O. Division of Forest Products Technological Paper,No.,62Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Fiji Department of Forestry,1972,Guide to the use of local timbers,Fiji Forestry Department, Suva. Fiji timbers and their uses No.55Fiji Forestry Department,1966,The Properties and Potential Uses of Kaudamu (Myristica species) A Summary,of C.S.I.R.O. Investigations,Fiji Timbers and their Uses No. 11, Department of Forestry, Suva, Fiji.Fiji Forestry Department,1969,Timbers for Flooring A Note on Current & Potential Species,Fiji Timbers and their Uses No.36, Department of Forestry, Suva, FijiFiji Forestry Department,1981,The Properties and Uses of 43 Indigenous and Exotic Timbers,Fiji Forestry Department, Fiji Timbers and their Uses No.71Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1
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