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Bijasal
Bijasal (Pterocarpus marsupium)

Family: Dipterocarpaceae

Common names: Angu, Bebe, Bijasal, Huevos de gato, Indian Padauk, Lagunero, Mututi, Nogal falso, Padauk, Palo de pollo, Pau sangua, Sangre, Sangre de drago, Sangrillo, Yaya sangre

Distributed in: India (Oceania and S.E. Asia)

Distribution overview: The genus Pterocarpus consists of over 60 species of small and large trees that occur widely in the tropics. Pterocarpus marsupium is widely distributed in Central and South India, mainly on hilly areas at altitudes of 490 to 1475 feet (150 to 450 m), but occasionally reaching up to 3270 feet (1000 m) or more. It is found also in Orissa and Bihar and extends eastwards to the sub-Himalayan tract up to Kumaon.

Common uses: Beams, Building construction, Cabin construction, Clogs, Concrete formwork, Construction, Crossties, Decks, Factory construction, Farm vehicles, Form work, Foundation posts, Framing, Handles, Heavy construction, Joists, Light construction, Porch columns, Railroad ties, Rough construction, Shafts/Handles, Structural work, Tool handles, Wheel spokes, Wheels , Windows

Environment profile: Status has not been officially assessed

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isTan, Whiteand the sapwoodWell defined, White to yellow.The grain isModerately interlocked, the textureMedium

Natural durability: Sapwood is susceptible to wood broing insects , Very good weathering properties

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Green conversion and stacking in open piles is recommended

Comments: The timber is reported to contain a dye which dissolves readily in cold water to stain the a wood yellowish color, and also impart a characteristic yellowish-blue flourescence to the waterWood contains yellow dye

Blunting Effect: Abrasive material in pores may dull cutting edges

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Surfaces tend to be woolly

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Fair to Good , Fairly Easy to Very Easy

Planing: Planes to a poor finish

Resistance to Impregnation: Sapwood is permeable

Sanding: Fairly Easy to Very Easy

Veneering qualities: Rotary cutting is not recommended due interlocked grain and aberasive material , Suitable for slicing

Steam bending: Poor to Very Poor Results


Polishing: Good; Staining: Fairly Easy to Very Easy; Varnishing: Heavy varnish used to prevent discoloration and staining in contact with water ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,65 0,69
Density 785 kg/m3
Bending Strength 730 1351 kg/cm2
Crushing Strength 357 669 kg/cm2
Hardness kg
Impact Strength 126 104 cm
Shearing Strength kg/cm2
Stiffness 100 131 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 4 %
Weight 929 769 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 10384 19227 psi
Density 49 lbs/ft3
Impact Strength 50 41 inches
Maximum Crushing Strength 5087 9523 psi
Stiffness 1429 1866 1000 psi
Specific Gravity 0.65 0.69
Weight 58 48 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 10 %

Very heavy
Density = high
Compression strength (parallel to grain) = very high
Bending strength (MOR) = very high

Limaye, V.D.1954. Grouping of Indian Timbers and their Properties, Uses and Suitability. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 2, Forest Research Institute, Dehra Dun, India.Limaye, V.D. and B.R. Sen. 1953. Weights and Specific Gravities of Indian Woods. Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 4, Forest Research Institute, Dehra Dun, India.Rao, K.R. and S.K. Purkayastha. 1972. Indian Woods - Their Identification, Properties and Uses, Volume III - Leguminosae to Combretaceae. Published by the Manager of Publications, Delhi, India.
*Come interpretare i dati (manleva su eventuali imprecisioni)