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NarraAndaman padaukNarraAndaman padaukNarraAndaman padaukNarraAndaman padaukNarraAndaman padauk
NarraAndaman padauk (Pterocarpus indicus)

Family: Leguminosae

Common names: Amboyna, Andaman padauk, Andaman redwood, Angsama, Angsana, Chalanga-da, East Indian mahogany, Indian redwood, Liki, Nara, Narra, Narravitail, New Guinea rosewood, Nonalu, Padauk, Papua New Guniea rosewood, Red narra, Ringii, Rosewood, Sena, Solomons padauk, Sonokembang, Vermilion wood, Warave, Yaya sa, Yellow narra

Distributed in: India, Indonesia, Madagascar, Malaysia, Myanmar, Papua New Guinea, Philippines, Solomon Islands, Thailand (Oceania and S.E. Asia)

Distribution overview: This species is one of about 60 in the Pterocarpus genus, which consists of small to large trees distributed throughout the tropics. Pterocarpus indicus is indigenous to Malaysia, but is also found in the Philippines, Borneo, Burma, New Guinea, and the Malay Archipelago. It is also often planted as an ornamental and a shade tree in several regions, including India, along roadsides, and in gardens because of its flowers and handsome foliagePterocarpus is a genus of over 60 species consisting of small and large trees that are distributed throughout the tropical regions of the world. Pterocarpus dalbergioides is confined to and common in the deciduous and semi-deciduous forests of the Andaman Islands. It is described as the principal timber tree on the islands and is usually found growing on or near riverbanks. also reported to cultivated on a small scale, mostly in gardens, in mainland India.

Common uses: Bedroom suites, Boat building (general), Boat building, Boat building: framing, Boxes and crates, Building construction, Building materials, Cabin construction, Cabinetmaking, Canoes, Carvings, Casing, Ceiling, Chairs, Chests, Concealed parts (Furniture), Construction, Decks, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Drum sticks, Excelsior, Exterior trim & siding, Exterior uses, Factory construction, Factory flooring, Figured veneer, Fine furniture, Fixtures, Floor lamps, Flooring, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Interior trim, Joinery (external): ground contact, Joinery, Joists, Kitchen cabinets, Lifeboats, Light construction, Living-room suites, Millwork, Mine timbers, Moldings, Musical instruments , Musical instruments, Musical instruments: piano, Novelties, Office furniture, Organ pipes, Paneling, Parquet flooring, Piano keys, Pianos , Plywood, Plywood: veneer (marine), Poles, Pulp/Paper products, Radio - stereo - TV cabinets, Rustic furniture, Sounding boards, Tables, Turnery, Vehicle parts, Veneer, Veneer: decorative

Product sources: Supplies of Andaman padauk are rather limited, and when available, it is often priced in the costly range.

Environment profile: Status unknown in parts of its range

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite/Straw , Yellow.The grain isWavy, the textureModerately fine to moderately coarse and uneven and the lusterSlightly lustrous

Natural durability: Susceptible to marine borer attack, Very durable

Odor: No distinctive taste

Kiln Schedules: UK=F US=T6D4/T3D3 Fr=6

Kiln Drying Rate: Slow (18-28 days for boards < 32 mm, to 52-84 days for boards >= 63 mm)

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Slowly

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good General finishing qualities are rated as poor

Blunting Effect: Slight

Boring: Good boring qualities

Carving: Very easy to impregnate with preservatives

Cutting Resistance: Generally good sawing characteristics

Gluing: Satisfactory gluing properties

Mortising: Fairly Easy to Very Easy

Moulding: Moulds easily with ordinary tools

Movement in Service: Moulds easily with ordinary tools

Nailing: Holds nails well, Possible if prebored

Planing: Torn grain common in quartersawn material

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Moderate working qualities

Routing recessing: Routing yields good results

Sanding: Good sanding finish

Veneering qualities: Easy to cut

Steam bending: Moderate

Screwing: Holds screws well, Screwing yields good results; Turning: Material with interlocked grain requires extra attention

Painting: Fair to Good; Polishing: Satisfactory; Staining: Stains well; Varnishing: Fairly Easy to Very Easy;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,55 0,59
Density 673 kg/m3
Bending Strength 724 977 kg/cm2
Crushing Strength 67 102 kg/cm2
Hardness 711 kg
Impact Strength 73 73 cm
Shearing Strength 100 kg/cm2
Stiffness 104 119 1000 kg/cm2
Tangential Shrinkage 4 %
Radial Shrinkage 3 %
Weight 673 673 kg/m3
Maximum Load cm-kg/cm3
Toughness 391 cm-kg
Static Bending 449 579 kg/cm2
Item Green Dry English
Bending Strength 10310 13896 psi
Crushing Strength 958 1454 psi
Density 42 lbs/ft3
Hardness 1568 lbs
Impact Strength 29 29 inches
Maximum Crushing Strength 5963 8446 psi
Shearing Strength 1434 psi
Static Bending 6389 8247 psi
Stiffness 1492 1702 1000 psi
Toughness 340 inch-lbs
Specific Gravity 0.55 0.59
Weight 42 42 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 4 %
Volumetric Shrinkage 6 %

Density (dry weight) = 46-52 lbs/cu. ft. 0
Modulus of Elasticity (stiffness) = low 0
Bending strength (MOR) = medium 0
Max. crushing strength = high 1
Density (dry weight) = 38-45 lbs/cu. ft. 1
Density (dry weight) = 31-37 lbs/cu. ft.
Shrinkage, Tangential = very small
Max. crushing strength = medium
Hardness (side grain) = medium
Shrinkage, Radial = small
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = medium
Hardness (side grain) = hard
Bending strength (MOR) = low
Toughness-Hammer drop (Impact Strength) = low
Shrinkage, Radial = very small
Shearing strength (parallel to grain) = very low
Resists denting and marring
Density = high
Bending strength (MOR) = high
Heavy
Compression strength (parallel to grain) = very high
Compression strength (parallel to grain) = high
Modulus of Elasticity (stiffness) = high

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*Come interpretare i dati (manleva su eventuali imprecisioni)