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Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Schedules
Luster
Mortising
Moulding
Nailing
Natural Durability
Numerical Data
Odor
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sanding
Sapwood Color
Scientific Name
Texture
Trade Name
Tree Size

Scientific Name
Flindersia pubescens

Trade Name
Northern silver ash

Family Name
Rutaceae

Wood Image 1

Common Names
Australian maple, Flindersia, New guinea silkwood, Northern silver ash, Queensland maple, Silkwood, Silkwood maple, Silver ash

Regions of Distribution
Oceania and S.E. Asia

Countries of Distribution  [VIEW MAP]
Australia, Papua New Guinea

Common Uses
Bedroom suites, Building materials, Cabinetmaking, Chairs, Chests, Decorative veneer, Desks, Dining-room furniture, Drawer sides, Drum sticks, Excelsior, Figured veneer, Fine furniture, Furniture , Gunstocks, Interior construction, Joinery, Kitchen cabinets, Living-room suites, Musical instruments , Office furniture, Organ pipes, Paneling , Piano keys, Pianos , Radio - stereo - TV cabinets, Rifle stock, Sounding boards, Veneer, Violin bows, Violin, Wainscotting, Wardrobes, Xylophones

Environmental Profile
Status has not been officially assessed


Distribution Overview
Queensland, Australia and into Papua New Guinea.

Heartwood Color
Yellow
Red
Brown
Purple
Orange
Green/grey


Sapwood Color
Red
Yellow
Sapwood is considered narrow
Grayish white


Grain
Closed
Interlocked
Wavy

Wavy
Interlocked

The wood is described as figureless and rather plain in appearance.

Texture
Fine
Medium


He wood has a medium and uniform texture

Luster
Silky luster


Natural Durability
Susceptible to insect attack
Perishable
Non-durable
Non-resistant to powder post beetles
Non-resistant to termites
Non-resistant to marine borers
Moderately durable
Very little natural resistance


Odor
Slightly scented


Kiln Schedules
T3-C2(4/4) US
T3-C1-(8/4) US


Drying Defects
Slight twist/warp
Expect slight collapse and honeycombing


Ease of Drying
Fairly Easy


Radial - 3.5%

Shrinkage fom green to 12% MC

Tangential - 5.0

The material is reported to season satisfactorily.

Tree Size
Tree height is 30-40 m
Bole length is 10-20 m
Sapwood width is 5-10 cm
Bole length is 20-30 m
Trunk diameter is 100-150 cm


Cutting Resistance
Easy to saw
Moderate to fairly difficult to saw


Gluing
Fairly Easy to Very Easy
Good gluing properties


Mortising
Fairly Easy to Very Easy


Moulding
Fairly Easy to Very Easy


Nailing
Fairly Easy to Very Easy
Good nailing properties


Planing
Fairly Easy to Very Easy
Torn grain is common machining defect
Planes well, to a good finish
Good planing properties
Fairly easy to plane


Resistance to Impregnation
Resistant heartwood
Resistant sapwood


Response to Hand Tools
Easy to Work


Sanding
Contains alkaloids giving it good acid resistance


Polishing
Very Good to Excellent Results
Fair to Good Results
Responds well to peeling after proper softening


Numerical Data
ItemGreenDryEnglish
Bending Strength989814602psi
Crushing Strength8391235psi
Density34lbs/ft3
Hardness1176lbs
Maximum Crushing Strength46167928psi
Shearing Strength1789psi
Static Bending57238477psi
Stiffness149918521000 psi
Toughness147inch-lbs
Specific Gravity0.580.6
ItemGreenDryMetric
Bending Strength6951026kg/cm2
Crushing Strength5886kg/cm2
Density544kg/m3
Hardness533kg
Maximum Crushing Strength324557kg/cm2
Shearing Strength125kg/cm2
Static Bending402596kg/cm2
Stiffness1051301000 kg/cm2
Toughness169cm-kg

References
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.

Keating, 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