Wood inspector

Sei in: home » database dei legni
  • Decrease font size
  • Default character size
  • Encrease font size


Fornitori

Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 4
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 3
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 2
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 

Contatti

database dei legni


Ask informationsPrint pageSend to a friend
White firWhite fir
White fir (Abies concolor)

Family: Pinaceae

Common names: Colorado fir, Colorado white fir, Concolor fir, Lows fir, Oyamel, Pacific white fir, Pino real blanco, Rocky mountain white fir, Silver fir, Western fir, White balsam, White fir

Distributed in: United States (North America)

Distribution overview: In the U.S., white fir is native to the mountains from central Colorado west to southeast Idaho and southwest Oregon, south to southern California and east to southern Arizona and southern New Mexico. It also grows in northwest Mexico.White fir is a montane species and common in the forest understory between 2,000 and 11,000ft. The maximum growth of white fir occurs in the southern Cascades and￿western slopes of the Sierra Nevada, where precipitation is generally between 990 mm and 1240 mm. Growth and development are best on moderately deep and well-drained soils. It is often cultivated for ornament, shade and Christmas trees.

Common uses: Beams, Boxes and crates, Building construction, Cabin construction, Casks, Concrete formwork, Construction, Decks, Decorative plywood, Dressed boards, Factory construction, Form work, Foundation posts, Framing, Heavy construction, Joists, Light construction, Lumber, Packing cases, Plywood, Porch columns, Pulp/Paper products, Pulpwood, Rough boards/dimension stock, Rough construction

Environment profile: Widespread

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellowish tanand the sapwoodWhite, Yellow.The grain isStraight, the textureMedium to coarse

Natural durability: Perishable, Very little resistance to decay

Odor: No specific smell or taste

Kiln Schedules: 12 - E5 (4/4) T10 - E4 (8/4) U.S

Drying Defects: Uneven Moisture Content, Uneven moisture content

Boring: Good results

Gluing: Very Good to Excellent Results

Mortising: good

Moulding: Moulds well

Movement in Service: Moulds well

Nailing: Holds nails well, Very Good to Excellent

Planing: good

Resistance to Impregnation: Resistant sapwood

Screwing: Very Good to Excellent Results, Very good screw holding qualities; Turning: Good results


  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,3 0,27
Density kg/m3
Bending Strength 406 675 kg/cm2
Crushing Strength 19 36 kg/cm2
Hardness 213 kg
Impact Strength 55 50 cm
Shearing Strength 75 kg/cm2
Stiffness 79 103 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 3 %
Weight 721 400 kg/m3
Maximum Load 0,42 0,49 cm-kg/cm3
Toughness 186 cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 5782 9604 psi
Crushing Strength 274 519 psi
Hardness 470 lbs
Impact Strength 22 20 inches
Maximum Crushing Strength 2842 5684 psi
Shearing Strength 1078 psi
Stiffness 1137 1470 1000 psi
Toughness 162 inch-lbs
Work to Maximum Load 6 7 inch-lbs/in3
Specific Gravity 0.3 0.27
Weight 45 25 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 11 %

Surfaces may dent or scratch easily
Soft
Density (dry weight) = 31-37 lbs/cu. ft.
Density (dry weight) = 23-30 lbs/cu. ft.
Compression strength (parallel to grain) = medium
Bending strength (MOR) = medium

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.Little, E.L.1980.The Audobon Society Field Guide to North American Trees - Western Region.Published by Arthur A. Knopf, New York.MacDonald, J., R.F. Wood, M.V. Edwards and J.R. Aldhous, Editors. 1957. Exotic Forest Trees in Great Britain. Forestry Commission Bulletin No. 30.Paper Prepared for the Seventh British Commonwealth Forestry Conference, Australia and New Zealand. Her Majesty's Stationery Office, London.Panshin, A.J. and C. deZeeuw. Textbook of Wood Technology. McGraw-Hill Series in Forest Resources. McGraw-Hill Book Company, New York.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.Western Wood Products Association.19__.Softwoods of the Western USA.Published and Distributed by the Western Wood Products Association, Yeon Building, 522 S.W. Fifth Avenue, Portland, Oregon.
*Come interpretare i dati (manleva su eventuali imprecisioni)