Wood Handbook, Wood as an Engineering Material

(Wang) #1

Table 5–3b. Strength propertiesof some commercially important woods grown in the United States (inch–pound)a—con.


Static bending


Impact
bending
(in.)

Com-
pression
parallel
to grain
(lbf in–2)

Com-
pression
perpen-
dicular
to grain
(lbf in–2)

Shear
parallel
to
grain
(lbf in–2)

Tension
perpen-
dicular
to grain
(lbf in–2)

Side
hard-
ness
(lbf)

Modulus
of
rupture
(lbf in–2)

Modulus
of
elasticityc
( 106 lbf in–2)

Work
to
maxi-
mum
load
(in-lbf in–3)

Common species
names


Moisture
content

Specific
gravityb
Cedar—con.
Port-Orford Green 0.39 6,600 1.30 7.4 21 3,140 300 840 180 380
12% 0.43 12,700 1.70 9.1 28 6,250 720 1,370 400 630
Western redcedar Green 0.31 5,200 0.94 5.0 17 2,770 240 770 230 260
12% 0.32 7,500 1.11 5.8 17 4,560 460 990 220 350
Yellow Green 0.42 6,400 1.14 9.2 27 3,050 350 840 330 440
12% 0.44 11,100 1.42 10.4 29 6,310 620 1,130 360 580
Douglas-fire
Coast Green 0.45 7,700 1.56 7.6 26 3,780 380 900 300 500
12% 0.48 12,400 1.95 9.9 31 7,230 800 1,130 340 710
Interior West Green 0.46 7,700 1.51 7.2 26 3,870 420 940 290 510
12% 0.50 12,600 1.83 10.6 32 7,430 760 1,290 350 660
Interior North Green 0.45 7,400 1.41 8.1 22 3,470 360 950 340 420
12% 0.48 13,100 1.79 10.5 26 6,900 770 1,400 390 600
Interior South Green 0.43 6,800 1.16 8.0 15 3,110 340 950 250 360
12% 0.46 11,900 1.49 9.0 20 6,230 740 1,510 330 510
Fir
Balsam Green 0.33 5,500 1.25 4.7 16 2,630 190 660 180 290
12% 0.35 9,200 1.45 5.1 20 5,280 400 940 180 380
California red Green 0.36 5,800 1.17 6.4 21 2,760 330 770 380 360
12% 0.38 10,500 1.50 8.9 24 5,460 610 1,040 390 500
Grand Green 0.35 5,800 1.25 5.6 22 2,940 270 740 240 360
12% 0.37 8,900 1.57 7.5 28 5,290 500 900 240 490
Noble Green 0.37 6,200 1.38 6.0 19 3,010 270 800 230 290
12% 0.39 10,700 1.72 8.8 23 6,100 520 1,050 220 410
Pacific silver Green 0.40 6,400 1.42 6.0 21 3,140 220 750 240 310
12% 0.43 11,000 1.76 9.3 24 6,410 450 1,220 — 430
Subalpine Green 0.31 4,900 1.05 — — 2,300 190 700 — 260
12% 0.32 8,600 1.29 — — 4,860 390 1,070 — 350
White Green 0.37 5,900 1.16 5.6 22 2,900 280 760 300 340
12% 0.39 9,800 1.50 7.2 20 5,800 530 1,100 300 480
Hemlock
Eastern Green 0.38 6,400 1.07 6.7 21 3,080 360 850 230 400
12% 0.40 8,900 1.20 6.8 21 5,410 650 1,060 — 500
Mountain Green 0.42 6,300 1.04 11.0 32 2,880 370 930 330 470
12% 0.45 11,500 1.33 10.4 32 6,440 860 1,540 — 680
Western Green 0.42 6,600 1.31 6.9 22 3,360 280 860 290 410
12% 0.45 11,300 1.63 8.3 23 7,200 550 1,290 340 540
Larch, western Green 0.48 7, 700 1.46 10.3 29 3,760 400 870 330 510
12% 0.52 13,000 1.87 12.6 35 7,620 930 1,360 430 830
Pine
Eastern white Green 0.34 4,900 0.99 5.2 17 2,440 220 680 250 290
12% 0.35 8,600 1.24 6.8 18 4,800 440 900 310 380
Jack Green 0.40 6,000 1.07 7.2 26 2,950 300 750 360 400
12% 0.43 9,900 1.35 8.3 27 5,660 580 1,170 420 570
Loblolly Green 0.47 7,300 1.40 8.2 30 3,510 390 860 260 450
12% 0.51 12,800 1.79 10.4 30 7,130 790 1,390 470 690
Lodgepole Green 0.38 5,500 1.08 5.6 20 2,610 250 680 220 330
12% 0.41 9,400 1.34 6.8 20 5,370 610 880 290 480
Longleaf Green 0.54 8,500 1. 59 8.9 35 4,320 480 1,040 330 590
12% 0.59 14,500 1.98 11.8 34 8,470 960 1,510 470 870
Pitch Green 0.47 6,800 1.20 9.2 — 2,950 360 860 — —
12% 0.52 10,800 1.43 9.2 — 5,940 820 1,360 — —


General Technical Report FPL–GTR– 190
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