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Blunting Effect
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Luster
Nailing
Natural Durability
Numerical Data
Odor
Painting
Planing
Polishing
References
Regions of Distribution
Resin Content
Resistance to Impregnation
Response to Hand Tools
Sanding
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Size
Varnishing

Scientific Name
Pinus rigida

Trade Name
Pitch pine

Family Name
Betulaceae

Wood Image 1

Common Names
Pine, Pitch pine

Regions of Distribution
North America

Countries of Distribution  [VIEW MAP]
Canada, United States

Common Uses
Core Stock, Crossties, Decorative veneer, Fiberboard, Figured veneer, Hardboards, Mine timbers, Particleboard, Pile-driver cushions, Piling, Plain veneer, Plywood, Poles, Pulp/Paper products, Pulpwood, Railroad ties, Structural plywood, Utility crossarms, Utility plywood, Utility poles, Veneer

Environmental Profile
Widespread, abundant, and secure in most areas within its range
May be rare in parts of its range, especially at the periphery
Data source is World Conservation Monitoring Center
Data source is Nature Conservancy

His species is Vulnerable within its natural habitat in Ontario, and Endangered in Quebec

Distribution Overview
This North America species is distributed in Ontario, Quebec, Connecticut, Delaware, Georgia, Kentucky, Massachusetts, Maryland, Maine, Minnesota, North Carolina, Great Smoky Mountain National Park, Illinois, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, and West Virginia. It forms pure stands initially which are gradually replaced by hardwoods, and is also found in mixed forests. The tree prefers shallow sands and gravels on steep slopes and ridges, as well as in river valleys and swamps. Pitch pine grow from sea level to an elevation of slightly over 3000 feet (900 m), occasionally higher.

Heartwood Color
Brown
Red
Purple
Various shades of yellow and orange to reddish brown or light brown
Clearly demarcated


Sapwood Color
White
Pink
Yellow
Variable width
Nearly white to yellowish, orange-white, or pale uellow


Grain
Even

Generally straight, but may be somewhat uneven


Texture
Medium
Fine
Coarse
Medium


Luster
Medium


Natural Durability
Durable
Non-resistant to powder post beetles
Susceptible to insect attack
Very little natural resistance to decay in ground contact
Should not be used under conditions promoting decay without proper protection


Odor
Strong resinous odor
No specific taste


Resin Content
Resinous


Ease of Drying
Fairly Easy
Slowly


Kiln Drying Rate
Naturally dries slowly


Tree Size
Tree height is 30-40 m
Bole length is 10-20 m
Trunk diameter is 100-150 cm
Tree height is 10-20 m
Tree height is 20-30 m


Comments
Abnormal wood tissue in the form of compression wood may be present

Blunting Effect
Moderate blunting effect on cutting edges


Cutting Resistance
Fairly Difficult to Very Difficult to saw
Moderate to saw
Resin exudation may gum up sawteeth
Moderate cutting resistance
Long pitch saws recommended


Gluing
Easy to glue


Nailing
Fairly Difficult to Very Difficult
Pre-Boring Recommended
Good nail holding properties


Planing
Fairly Difficult to Very Difficult
Responds fairly well to most ordinary machine tools, with moderate blunting effect
High resin content may be troublesome since cutters tend to gum up

It planes, turns, bores, mortises, and performs fairly well in all other machining operations to produce relatively clean surfaces

Resistance to Impregnation
Difficult to treat with presevatives


Response to Hand Tools
Easy to Work
Fairly Difficult to Difficult to Work
Fair response to hand tools


Sanding
Good sanding properties


Screwing
Fairly Difficult to Very Difficult
Pre-boring recommended
Good screw holding properties


Steam Bending
Unsuitable for steam bending applications because of high resin content


Painting
Satisfactory painting properties


Polishing
Fair to Good Results
Very Good to Excellent Results
Some surface preparation may be required because of high resin content
Fairly satisfactory finishing treatments


Staining
Responds fairly well to most finishing treatmens


Varnishing
Takes varnishes satisfactorily


Strength Properties
Compression strength (parallel to grain) = medium
Bending strength (MOR) = medium


Numerical Data
ItemGreenDryEnglish
Bending Strength666410584psi
Crushing Strength353804psi
Maximum Crushing Strength28915821psi
Shearing Strength1333psi
Stiffness117614011000 psi
Work to Maximum Load99inch-lbs/in3
Specific Gravity0.440.48
Radial Shrinkage4%
Tangential Shrinkage7%
Volumetric Shrinkage11%
ItemGreenDryMetric
Bending Strength468744kg/cm2
Crushing Strength2456kg/cm2
Maximum Crushing Strength203409kg/cm2
Shearing Strength93kg/cm2
Stiffness82981000 kg/cm2
Work to Maximum Load0.630.63cm-kg/cm3
Specific Gravity0.440.48
Radial Shrinkage4%
Tangential Shrinkage7%

References
Boone, R.S., C.J. Kozlik, P.J. Bois and E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Woods: Temperate and Tropical. United States Department of Agriculture, Forest Service, Forest Products Laboratory, General Technical Report FPL-GTR-57, Madison, Wisconsin.

Little, E.L. 1980. The Audubon Society Field Guide to North American Trees - Eastern Region. Published by Arthur A. Knopf, New York.

Mirov, N.T. 1967. The Genus PINUS. The Ronald Press Company, New York. LCC Card No. 67-14783.

Panshin, A.J. and C. deZeeuw. 1980. Textbook of Wood Technology, 4th Edition. McGraw-Hill Series in Forest Resources. McGraw-Hill Book Company, New York.

USDA. 1987. Wood Handbook - Wood as an Engineering Material, Forest Service, Agriculture Handbook No. 72, Forest Products Laboratory, Madison, Wisconsin.

USDA. 1988. Dry Kiln Operators Manual, Preliminary Copy. Forest Service, Forest Products Laboratory, Madison, Wisconsin.