Western White Pine
- Other names: Idaho White Pine, White Pine.
- Scientific name: Pinus monticola Dougl,
- Genera: Pinannceae.
- Places where these trees are found: About four of the fifth part is obtained in Idaho state, and the rest of the one-fifth part is found in Washington state. And very few amounts are obtained in Montana and Arizona state.
Physical Properties of Western White Pine
Color of the Wood: It is cream colored to the lite reddish-brown, and if exposed in the air, the color gets deeper. The paul wood is yellowish-white and is of 25 millimeters to 75-millimeter girth.
Structure of the wood: The fibers of the wood are straight. It is also a nonporous wood and has an annual growth cycle. In the simple sawed board or the tactile sawed board, or in the veneer, the growth circles are seen slightly. In the radial sawing of the wood, the signs of the growth circles are not found.
Shrinkage: From the raw state to oven-dry state, 4.1% of the radial, 7.4% tangenital, and 11.8% of the total volume are contracted. The shape of the wood doesn’t change. The middle portion of the wood is moderately more shrinkable.
Workability: It is easy and convenient to work with western white pine.
Weight, density, and specific gravity: The wood is lite in weight. Based on the raw weight state and the zero humidity state, the specific gravity is 0.35. based on the weight of the raw state and 12% humidity state, the specific gravity of the wood is 0.38. Accordingly, the weight of the wood is 436 kg per cubic meter (26.6 lb per cubic foot) in the state of 12% humidity. The weight of the wood is moderately light.
Humidity in the raw state: Timber tree wood is 62%and paul wood is 48%.
Natural Durability: The durability of the timber tree wood and the paul wood is very low. These are regarded as the perishable class of wood.
Seasoning Properties: It can easily be dried in the kiln, and the error in the reverse-drying is less, and the wood is occupied properly.
Treatability: The heartwood is preserved in the pressuring process, and the timber tree wood is more conservative.
Mechanical Properties of Western White Pine
Modulus of rupture: in the raw state, the wood shows 32.41 Newton per square millimeter (4700 lb per square inch). In 12% humidity, the wood shows 66.90 Newton per square millimeter (9700 lb per square inch). It is moderately less strong.
Modulus of elasticity: In the raw state, the wood shows 0.0082 million Newton per square millimeter (1.19 million lb per square inch); in the 12% of the humidity state, it shows a module of 0.01million Newton per square millimeter (1.46 million lb per square inch)
Working to maximum load: In the raw state, the wood shows 0.138 kg per cubic meter (5 lb per cubic inch); in the state of 12% humidity, the wood displays 0.244 kg per cubic centimeter (8.8 lb per cubic inch)
Impact bending: To break the wood totally by hitting the wood with a hammer of the mass of 22.68 kg (50 lb), the required height of the hammer is 48.26 centimeters (19 inches) in the raw state, 58.42 centimeters (23 inches) in the state of 12% humidity. Its impact bending is moderate.
Compression parallel to grain-maximum crushing strength: In raw state 16.76 Newton per square millimeter (2430 lb per square inch), in the state of 12% humidity 34.76 Newton per square millimeter (5040 lb per square inch).
Compression parallel to grain-maximum crushing strength: In raw state 16.76 Newton per square millimeter (2430 lb per square inch), in the state of 12% humidity 34.76 Newton per square millimeter (5040 lb per square inch).
Compression perpendicular to grain fiber stress to proportional limit: It shows 1.31 Newton per square millimeter (190 lb per square inch) in the raw state. In the state of 12 % humidity, it is 3.24 Newton per square millimeter (470 lb per square inch)
Shear parallel to grain – maximum shearing strength: In the raw state, it is 4.69 Newton per square millimeter (680 lb per square inch), in the state of 12% humidity, it shows 7.17 Newton per square millimeter (1040 lb per square inch)
Tension perpendicular to grain – maximum tensile strength: In the raw state, this wood shows 1.79 Newton per square millimeter (260 lb per square inch), the information for the state of 12% humidity is not available.
Side hardness – load perpendicular to grain: In the vacant condition, it is 117.94 kg (260 lb), in the state 12% humidity 190.51 kg (420 lb). Moderately soft, moderately stiff, and moderately hit tolerable.
Uses of Western White Pine
In reality, all the grown wood is sawed into lumber, which is the sawed wood. The building materials (building, room), matchboxes, roof stripes, and frames of different factory structures like doors, windows, and many other things are built from sawed wood. This wood is used as sheathing in the building, the multistoried buildings, and other structures in preparing the knotting frame, subflooring, and roof strips.
The high-quality timbers are used inside works, designing interior and exterior designs, and preparing the final cover. Like the Eastern White Pine and Sugar Pine, these woods are used and are confined in the western part of the country. This wood is not used for making electrical poles.
