Pin – 42″ X 9″ X 8″ – Pine
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Résistance de métaux variés – dans un fils de calibre 14
Resistance of various metals – in 14 gauge wire | ||
Ohms par 1000 pieds
Ohms per 1000 feet | ||
Argent | Silver | 2.39 |
Cuivre | Copper | 2.53 |
Tungstène | Tungsten | 3.07 |
Or | Gold | 3.57 |
Aluminium | Aluminum | 4.14 |
Magnésium | Magnesium | 6.74 |
Zinc | Zinc | 8.42 |
Laiton | Brass | 10.3 |
Nickel | Nickel | 11.4 |
Fer | Iron | 14.6 |
Platine | Platinum | 14.6 |
Acier – moyenne | Steel – average | 15 |
Étain | Tin | 16.8 |
Plomb | Lead | 32.2 |
Plus la résistance augmente en ohms, plus le voltage diminu / The higher the resistance in ohms, the higher the voltage drop
Diamètre en pouces
Diameter in inches | Pouces carrés
Square inches | Pieds carrés
Square feet |
3 | 7.07 | 0.05 |
4 | 12.57 | 0.09 |
5 | 19.63 | 0.14 |
6 | 28.27 | 0.20 |
7 | 38.48 | 0.27 |
8 | 50.26 | 0.35 |
9 | 63.61 | 0.44 |
10 | 78.54 | 0.55 |
11 | 95.03 | 0.66 |
12 | 113.09 | 0.79 |
Données utiles pour estimer un système de récupération de poussière / Usefull data to estimate a dust collection system
Bois ( séché) | Wood (seasoned) | Densité / Density | Poids (lbs par pi.cu.)
Weight (lbs per cu.ft. |
Frêne | Ash | 0.65 – 0.85 | 40 – 53 |
Tilleul | Basswood | 0.32 – 0.39 | 20 – 37 |
Hêtre | Beech | 0.70 – 0.90 | 43 – 56 |
Merisier | Birch | 0.51 – .077 | 32 – 48 |
Cerisier |
Cherry |
0.55 – 0.61 |
38 – 42 |
Ebène | Ebony | 1.11 – 1.33 | 69 – 83 |
Hickory |
Hickory | 0.60 – 0.93 | 37 – 58 |
Acajou du Honduras | Honduran Mahogany |
0.66 |
41 |
Acajou d’Espagne |
Spanish Mahogany |
0.85 |
53 |
Érable | Maple | 0.62 – 0.75 | 39 – 47 |
Chêne | Oak | 0.60 – 0.90 | 37 – 56 |
Pin blanc | White Pine | 0.35 – 0.50 | 22 – 31 |
Pin jaune | Yellow Pine | 0.37 – 0.60 | 23 – 37 |
Épinette | Spruce | 0.48 – 0.70 | 30 – 44 |
Teck africain | African Teak | 0.98 | 61 |
Teck indien | Indian Teak | 0.66 – 0.88 | 41 – 55 |
Noyer | Walnut | 0.64 – 0.70 | 40 – 43 |
Trouvez la dimension de la pièce de bois et multipliez la longueur en pieds par la valeur de la colonne 4
Find the lumber size and multiply the length in feet times the value in column 4 | |||
Grandeur nominale / Nominal Size | Épaisseur / Thickness | Largeur / Width | Pb approx. * / Bf Est. * |
1 X 2 | 1 | 2 | 1/6 |
1 X 4 | 1 | 4 | 1/3 |
1 X 6 | 1 | 6 | 1/2 |
1 X 8 | 1 | 8 | 2/3 |
1 X 10 | 1 | 10 | 5/6 |
1 X 12 | 1 | 12 | 1 |
2 x 2 | 2 | 2 | 1/3 |
2 x 4 | 2 | 4 | 2/3 |
2 x 6 | 2 | 6 | 1 |
2 x 8 | 2 | 8 | 1-1/3 |
2 x 10 | 2 | 10 | 1-2/3 |
2 x 12 | 2 | 12 | 2 |
3 X 3 | 3 | 3 | 3/4 |
3 X 4 | 3 | 4 | 1 |
3 X 6 | 3 | 6 | 1-1/2 |
3 X 8 | 3 | 8 | 2 |
3 X 10 | 3 | 10 | 2-1/2 |
3 X 12 | 3 | 12 | 3 |
4 X 4 | 4 | 4 | 1-1/3 |
4 X 6 | 4 | 6 | 2 |
4 X 8 | 4 | 8 | 2-2/3 |
4 X 10 | 4 | 10 | 3-1/3 |
4 X 12 | 4 | 12 | 4 |
* Multipliez ce chiffre par la longueur en pied pour obtenir les pieds de bois
* Multiply this figure times length in feet to get Board feet |
Localiser la grandeur et longueur voulue et lire les pieds de bois
Locate the lumber size and length and read board feet | |||||||||
Grandeur nominale
Nominal size | Grandeur factuelle
Actual size |
Longueur en pieds Length in feet | |||||||
8 | 10 | 12 | 14 | 16 | 18 | 20 | |||
1" X 2" | ¾" X 1½" | 1.33 | 1.67 | 2.0 | 2.33 | 2.67 | 3.0 | 3.33 | |
1 X 4 | ¾ X 3½ | 2.67 | 3.33 | 4.0 | 4.67 | 5.33 | 6.0 | 6.67 | |
1 X 6 | ¾ X 5½ | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | |
1 X 8 | ¾ X 7½ | 5.33 | 6.67 | 8.0 | 9.33 | 10.67 | 12.0 | 13.33 | |
1 X 10 | ¾ X 9½ | 6.67 | 8.33 | 10.0 | 11.67 | 13.33 | 15.0 | 16.67 | |
1 X 12 | ¾ X 11½ | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 18.0 | 20.0 | |
2" X 2" | 1½" X 1½" | 2.67 | 3.33 | 4.0 | 4.67 | 5.33 | 6.0 | 6.67 | |
2 X 4 | 1½ X 3½ | 5.33 | 6.67 | 8.0 | 9.33 | 10.67 | 12.0 | 13.33 | |
2 X 6 | 1½ X 5½ | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 18.0 | 20.0 | |
2 X 8 | 1½ X 7½ | 10.67 | 13.33 | 16.0 | 18.67 | 21.33 | 24.0 | 26.67 | |
2 X 10 | 1½ X 9½ | 13.33 | 16.67 | 20.0 | 23.33 | 26.67 | 30.0 | 33.33 | |
2 X 12 | 1½ X 11½ | 16.0 | 20.0 | 24.0 | 28.0 | 32.0 | 36.0 | 40.0 | |
3" X 3" | 2½" X 2½" | 6.0 | 7.5 | 9.0 | 10.5 | 12.0 | 13.5 | 15.0 | |
3 X 4 | 2½ X 3½ | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 18.0 | 20.0 | |
3 X 6 | 2½ X 5½ | 12.0 | 15.0 | 18.0 | 21.0 | 24.0 | 27.0 | 30.0 | |
3 X 8 | 2½ X 7½ | 16.0 | 20.0 | 24.0 | 28.0 | 32.0 | 36.0 | 40.0 | |
3 X 10 | 2½ X 9½ | 20.0 | 25.0 | 30.0 | 35.0 | 40.0 | 45.0 | 50.0 | |
3 X 12 | 2½ X 11½ | 24.0 | 30.0 | 36.0 | 42.0 | 48.0 | 54.0 | 60.0 | |
4" X 4" | 3½" X 3½" | 10.67 | 13.33 | 16.0 | 18.67 | 21.33 | 24.0 | 26.67 | |
4 X 6 | 3½ X 5½ | 16.0 | 20.0 | 24.0 | 28.0 | 32.0 | 36.0 | 40.0 | |
4 X 8 | 3½ X 7½ | 21.33 | 26.67 | 32.0 | 37.33 | 42.67 | 48.0 | 53.33 | |
4 X 10 | 3½ X 9½ | 26.67 | 33.33 | 40.0 | 46.67 | 53.33 | 60.0 | 66.67 | |
4 X 12 | 3½ X 11½ | 32.0 | 40.0 | 48.0 | 56.0 | 64.0 | 72.0 | 80.0 |