Paranpine (Araucaria angustifolia)
Family: Araucariaceae
Common names: Araucaria, Brazilian araucaria, Brazilian pine, Chilean pine, Curiy, Cury, Inho vermelho, Kuviy, Monkey puzzle tree, Parana pine, Pehuen, Pilon, Pin, Pinheiro, Pinheiro do Brasil, Pinheiro do Parana, Pinho, Pinho branco, Pinho brasileiro, Pinho brasilero, Pinho do Parana, Pino, Pino blanco, Pino Paranr>
Distributed in: Argentina, Brazil, Paraguay, South Africa (Africa, Latin America)
Distribution overview: Botanical distribution covers parts of Paraguay and Argentina and the Brazilian plateau region of Rio Grande do Sui, Santa Catharina, and Parana. Commercial exploitation has been centered in the State of Parana.
Common uses: Baskets, Beams, Bedroom suites, Blockboard, Boxes and crates, Building construction, Building materials, Cabin construction, Cabinetmaking, Casks, Chairs, Chests, Concealed parts (Furniture), Concrete formwork, Construction, Cooperages, Cutting surfaces, Decks, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Door, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Figured veneer, Fine furniture, Floor lamps, Flooring, Food containers, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Interior trim, Joinery, Ladders, Light construction, Matches, Millwork, Moldings, Musical instruments, Paneling, Particleboard, Plywood, Pulp/Paper products, Shingles, Sporting Goods, Tables, Vats, Vehicle parts, Veneer, Veneer: decorative
Environment profile: Vulnerable
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureFineand the lusterSlightly lustrous
Natural durability: Vulnerable to attack by some insects, including powder post beetles , not resistant to decay
Odor: No specific smell or taste
Kiln Schedules: UK=D US=T3D2/T3C1
Kiln Drying Rate: Naturally dries slowly
Drying Defects: Splitting, Streaks of abnormal wood tissue may promote warping and checking
Ease of Drying: Variable results.
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good May contain moderate levels of compression wood
Blunting Effect: Slight to moderate blunting effect on cutters
Boring: Fairly easy to very easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Ripped or resawn boards may distort considerably if material contains compression wood
Gluing: Mininum gluing is required since wider stock is usually available
Mortising: Fairly Easy to Very Easy
Moulding: Very Good to Excellent
Movement in Service: Very Good to Excellent
Nailing: Nails without pre-boring , Very Good to Excellent
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood is treatable
Resistance to Splitting: Poor
Response to hand tools: Responds well to hand tools
Routing recessing: Fairly Easy to Very Easy
Sanding: Produces smooth surfaces
Steam bending: Poor to Very Poor Results
Screwing: Fair to Good Results, Fairly Easy to Very Easy; Turning: Fairly Easy to Very Easy
Painting: Very Good to Excellent; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
0,39 |
0,46 |
|
Density |
|
544 |
kg/m3 |
Bending Strength |
558 |
917 |
kg/cm2 |
Crushing Strength |
283 |
484 |
kg/cm2 |
Hardness |
|
382 |
kg |
Impact Strength |
58 |
60 |
cm |
Shearing Strength |
|
123 |
kg/cm2 |
Stiffness |
95 |
109 |
1000 kg/cm2 |
Tangential Shrinkage |
7 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
512 |
400 |
kg/m3 |
Maximum Load |
0,63 |
0,77 |
cm-kg/cm3 |
Toughness |
|
149 |
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 7948 | 13046 | psi | Density | | 34 | lbs/ft3 | Hardness | | 843 | lbs | Impact Strength | 23 | 24 | inches | Maximum Crushing Strength | 4028 | 6894 | psi | Shearing Strength | | 1753 | psi | Stiffness | 1361 | 1552 | 1000 psi | Toughness | | 130 | inch-lbs | Work to Maximum Load | 9 | 11 | inch-lbs/in3 | Specific Gravity | 0.39 | 0.46 | | Weight | 32 | 25 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 7 | | % | Volumetric Shrinkage | 12 | | % | |
Max. crushing strength = medium 0 Modulus of Elasticity (stiffness) = low 0 Density (dry weight) = 31-37 lbs/cu. ft. 0 Bending strength (MOR) = medium 0 Shearing strength (parallel to grain) = low 1 Bending strength (MOR) = low 0 Shrinkage, Radial = small Shrinkage, Tangential = moderate Hardness (side grain) = soft Max. crushing strength (stiffness) = very low Hardness (side grain) = very soft Modulus of Elasticity (stiffness) = very low Density (dry weight) = 38-45 lbs/cu. ft. Toughness-Hammer drop (Impact Strength) = low Shrinkage, Tangential = very small Shrinkage, Radial = moderate Shearing strength (parallel to grain) = very low Hardness (side grain) = medium Density (dry weight) = 23-30 lbs/cu. ft. Work to Maximum Load Toughness-Hammer drop (Impact Strength) = very low Toughness (total work) = very low Toughness (total work) = low Shrinkage, Tangential = small Shrinkage, Tangential = large Shrinkage, Tangential = fairly large Shrinkage, Radial = very small Shrinkage, Radial = large Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = medium Resists wearing and marring Modulus of Elasticity (stiffness) = medium Medium weight Max. crushing strength = low Max. crushing strength = high Hardness = medium Compression strength (parallel to grain) = high Bending strength (MOR) = high
Parana pine has higher strength and hardness properties than most softwoods. Bending strength of air-dried wood of the species is similar to that of Teak, which is considered to be strong. Strength in compression parallel to grain is in the high range. Other species in this range include Teak, White oak, and Hard maple. it is as dense as Loblolly and Shortleaf pines, and just as strong. Its machining properties compare favorably with most North American softwoods, and it combines the strength and hardness of the Yellow pines with the easy working qualities of the White pines.
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