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Blunting Effect
Boring
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 Drying Rate
Kiln Schedules
Luster
Mortising
Movement in Service
Nailing
Natural Durability
Numerical Data
Odor
Painting
Planing
Polishing
Product Sources
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sanding
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Size
Turning
Varnishing
Veneering Qualities

Scientific Name
Fraxinus pennsylvanica

Trade Name
Green ash

Family Name
Oleaceae

Wood Image 1

Common Names
American ash, Ash, Blue ash, Darlington ash, Fresno, Green ash, Pumpkin ash, Red ash, Swamp ash, Water ash, Water ash profunda, White ash

Regions of Distribution
North America

Countries of Distribution  [VIEW MAP]
Canada, United States

Common Uses
Agricultural implements, Baseball bats, Baskets, Bedroom suites, Beehives, Bent Parts, Boat building (general), Boat building: framing, Boxes and crates, Building materials, Cabinetmaking, Chairs, Cooperages, Decorative plywood, Decorative veneer, Dining-room furniture, Drawer sides, Excelsior, Figured veneer, Fine furniture, Food containers, Fuelwood, Furniture , Furniture, Handles, Handles: general, Hockey sticks, Interior construction, Joinery, Kitchen cabinets, Living-room suites, Oars, Office furniture, Paddles, Paneling , Plywood, Radio - stereo - TV cabinets, Railroad cars, Railroad ties, Shafts/Handles, Skis, Sporting Goods, Tables, Tool handles, Toys, Utility furniture, Vehicle parts, Veneer, Wainscotting

Environmental Profile
Widespread
May be rare in some parts of its range
Globally secure
Data source is Nature Conservancy
Abundant


Distribution Overview
Green ash is the most widely distributed of all the American ashes. Its range extends from Cape Breton Island and Nova Scotia to southeastern Alberta and Montana, and southward to central Texas and northern Florida


Heartwood Color
Brown
Yellow
Orange
Brown
Greenish to greyish
Yellowish brown
Yellow to golden-yellow to orange
Light brown
Dark brown

Very similar to white ash

Sapwood Color
White
Yellow
White to yellow
Well defined
Paler than heartwood


Grain
Straight
Figure
Even
Growth rings (figure)

Straight
Clear growth rings (figure)


Texture
Medium
Coarse


Luster
Somewhat lustrous
Lustrous


Natural Durability
Non-durable
Susceptible to insect attack
Non-resistant to powder post beetles
Perishable
Non-resistant to marine borers
Moderately durable
Susceptible to attack from powder post (Lyctid & Bostrychid) beetles
Non durable

Heartwood resistance to attack by decay fungi and other wood destroying organisms is very low or negligible.

Odor
No specific smell or taste


Kiln Schedules
T8 - B4 (4/4); T5 - B3 (8/4) US
Drying (speed) is fast


Drying Defects
Checking
Distortion
Existing shakes may open up
End splitting
Distortion (twist/warp) is likely

Slow drying of timber produced from trees from wet sites may cause gray-brown sapwood stains (sticker marks, stains), and surface checks (in 6/4 and thicker stock)

Ease of Drying
Fairly Easy
Easy
Dries rapidly with little degrade


Kiln Drying Rate
Rapid
Drying rate is fairly rapid to fast


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


Product Sources
Green ash has very similar properties to White ash, and lumber and veneer produced from the two species are often mixed together and maketed without distinction.

Blunting Effect
Cuting edges are dulled moderately


Boring
Fairly easy to very easy
Very good results


Cutting Resistance
Easy to saw


Gluing
Fair gluing properties
Easy to glue


Mortising
Responds readily to mortising


Movement in Service
Stable
Small

The timber is dimensionally stable after seasoning, with only small movement in use

Nailing
Fairly Difficult to Very Difficult
Very Good to Excellent Results
Fair to Good Results
Pre-boring recommended
Holds nails well


Planing
Difficult to plane


Resistance to Impregnation
Permeable sapwood
Resistant heartwood
Resistant sapwood
Good response to preservative treatment


Response to Hand Tools
Easy to Work
Easy to machine
Good response to hand tools


Sanding
Sanding is fairly difficult


Screwing
Screwing yields good results
Possible if prebored


Turning
Fairly Easy to Very Easy
Very Good to Excellent Results
Fair to Good Results
Difficult to turn


Veneering Qualities
There is slight to moderate drying degrade and the potential for buckles and splits
Moderately easy to veneer


Steam Bending
Very good
Satisfactory


Painting
Satisfactory results


Polishing
Very good


Staining
Stains well


Varnishing
Good results


Strength Properties
Shearing strength (parallel to grain) = medium
Max. crushing strength = medium
Bending strength (MOR) = medium
Hardness (side grain) = soft
Density (dry weight) = 38-45 lbs/cu. ft.
Modulus of Elasticity (stiffness) = low
Toughness-Hammer drop (Impact Strength) = medium
Shearing strength (parallel to grain) = low
Toughness-Hammer drop (Impact Strength) = low
Shrinkage, Tangential = moderate
Shrinkage, Radial = moderate
Shearing strength (parallel to grain) = very low
Max. crushing strength = low
Max. crushing strength (stiffness) = very low
Density (dry weight) = 53-60 lbs/cu. ft
Density (dry weight) = 31-37 lbs/cu. ft.
Bending strength (MOR) = low


Numerical Data
ItemGreenDryEnglish
Bending Strength811712643psi
Crushing Strength6221196psi
Density41lbs/ft3
Hardness995lbs
Impact Strength3634inches
Maximum Crushing Strength34385928psi
Shearing Strength1931psi
Static Bending21563822psi
Stiffness122514071000 psi
Work to Maximum Load1011inch-lbs/in3
Specific Gravity0.460.5
Weight3937lbs/ft3
Radial Shrinkage3%
Tangential Shrinkage6%
Volumetric Shrinkage11%
ItemGreenDryMetric
Bending Strength570888kg/cm2
Crushing Strength4384kg/cm2
Density657kg/m3
Hardness451kg
Impact Strength9186cm
Maximum Crushing Strength241416kg/cm2
Shearing Strength135kg/cm2
Static Bending151268kg/cm2
Stiffness86981000 kg/cm2
Work to Maximum Load0.700.77cm-kg/cm3
Specific Gravity0.460.5
Weight624592kg/m3
Radial Shrinkage3%
Tangential Shrinkage6%

References
Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48

Betts, H.S.,1945,American Woods - Ash,USDA, Forest Service American Woods

Boone, R.S., C.J. Kozlik, P.J. Bois, E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Hardwoods - Temperate and Tropical. USDA, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.

Brown, H.P. and Panshin, A.J.,1940,Commercial Timbers of the United States Their structure, identification,,properties and uses,McGraw-Hill, London

Brown, W.H.,1978,Timbers of the World: - No.7 North America,TRADA

California Department of Forestry. Comparative Physical & Mechanical Properties of Western & Eastern Hardwoods. Prepared by Forest Products Laboratory, University of California at Berkeley, Berkeley, California. n/d.

Clifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. London

HMSO, 1981. Handbook of Hardwoods, 2nd Edition. Revised by R.H. Farmer. Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Princes Risborough, Aylesbury, Buckinghamshire

I.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer Cutting

Kaiser, Jo-ann. Wood of the Month. Ash - A Big Leaguer's Choice. Wood and Wood Products, September, 1987. Page 40.

Kaiser, Jo-Ann. Wood of the Month. Wood & Wood Products, July 1986 to September 1993.

Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12

Little, E.L. 1980. The Audubon Society Field Guide to North American Trees - Eastern Region. Published by Arthur A. Knopf, New York.

Markwardt, L.J., Wilson, T.R.C.,1935,Strength and related properties of woods grown in the United States,U.S.A. Department of Agriculture Technical Bulletin,No.479

Panshin, A.J. and C. deZeeuw. Textbook of Wood Technology. McGraw-Hill Series in Forest Resources. McGraw-Hill Book Company, New York.

U.S.D.A. Forest Service,1974,Wood Handbook,U.S.A. Department of Agriculture, Forest Service Handbook,72

USDA. 1987. Wood Handbook:Wood as an Engineering Material. Agriculture Handbook No. 72. United States Department of Agriculture, Forest Service, Madison, Wisconsin.

USDA. 1988. Dry Kiln Operators Manual, Preliminary Copy. Forest Service, Forest Products Laboratory, Madison, Wisconsin.