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ChampacaChampaca
Champaca (Michelia excelsa)

Family: Magnoliaceae

Common names: Champ, Champaca, Champak, Chempaka, Hangilo, Saga, Sagawa, Sandit, Sanga

Distributed in: India, Indonesia, Japan, Malaysia, Myanmar, Philippines (Oceania and S.E. Asia)

Distribution overview: The genus Michelia consists of shrubs and trees, with a growth range that is confined to the Indo-Malayan region and Japan. The genus is represented by about eleven indistinguishable species in India. M. excelsa occurs in the Himalayas, from Nepal eastwards at alevations of 4500 to 8000 feet (1500 to 2400 m) in the Khasi hills.

Common uses: Balusters, Bedroom suites, Building construction, Building materials, Cabinetmaking, Carvings, Chairs, Chests, Concealed parts (Furniture), Construction, Decorative plywood, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Excelsior, Fine furniture, Floor lamps, Furniture , Furniture components, Furniture squares or stock, Hatracks, Interior construction, Joinery, Kitchen cabinets, Light construction, Living-room suites, Moldings, Office furniture, Ornamental work , Plywood, Radio - stereo - TV cabinets, Rustic furniture, Stairworks, Stools, Stringers, Structural plywood, Tables , Turnery, Utility furniture

Environment profile: Status has not been officially assessed

Tree size: Tree height is 30-40 m

Colors: the heart isLight yellow brown or pale orange brown, eventually aging into deep golden-brown , Purpleand the sapwoodWhitish to greyish white , Yellow.The grain isStraight to irregular, the textureMediumand the lusterMedium

Natural durability: Moderately durable, Very durable

Odor: No specific smell or taste

Drying Defects: Discoloration, Slight twist/warp

Ease of Drying: Variable

Blunting Effect: Small effect

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Mortising: Fairly Easy to Very Easy

Moulding: Very Good to Excellent

Movement in Service: Very Good to Excellent

Planing: Fairly Difficult to Very Difficult Machining properties are good, and the timber responds readily to ordinary tools in planing and other woodworking operations to yield clean, glossy surfaces

Resistance to Impregnation: Extremely resistant

Response to hand tools: Good response

Routing recessing: Fairly Difficult to Very Difficult

Sanding: Excellent sanding properties

Veneering qualities: Suitable for peeling

Turning: Fairly Difficult to Very Difficult

Polishing: Very Good to Excellent; Staining: Good staining properties ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,4 0,42
Density 480 kg/m3
Bending Strength 528 789 kg/cm2
Crushing Strength 263 410 kg/cm2
Hardness 322 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 99 113 1000 kg/cm2
Tangential Shrinkage 5 %
Radial Shrinkage 3 %
Weight 849 496 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 7512 11236 psi
Density 30 lbs/ft3
Hardness 711 lbs
Maximum Crushing Strength 3749 5841 psi
Stiffness 1411 1617 1000 psi
Specific Gravity 0.4 0.42
Weight 53 31 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 5 %
Volumetric Shrinkage 8 %

Resists denting and marring
Heavy
Hardness (side grain) = medium
Density = high
Compression strength (parallel to grain) = medium
Bending strength (MOR) = high

Andy Poynter. 1993. Personal CommunicationChowdhury, K.A. and S.S. Ghosh. 1958. Indian Woods - Their Identification, Properties and Uses, Volume I - Dilleniaceae to Elaeocarpaceae. Published by the Manager of Publications, Delhi, India.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Limaye, V.D. 1954. Grouping of Indian Timbers and Their Properties, Uses, and Suitability. Indian Forest Records (New Series). Timber Mechanics. Volume 1 No. 2. Manager of Publications (Publisher, Delhi
*Come interpretare i dati (manleva su eventuali imprecisioni)