Wood Handbook, Wood as an Engineering Material

Chapter 5 Mechanical Properties of Wood

Table 5–5a. Mechanical propertiesof some woods imported into the United States other than Canadian imports

(metric)a—con.

Static bending Com-

pression

parallel

to grain

(kPa)

Shear

parallel

to grain

(kPa)

Side

hard-

ness

(N)

Sample

originb

Common and botanical

names of species

Moisture

content

Specific

gravity

Modulus

of

rupture

(kPa)

Modulus

of

elasticity

(MPa)

Work to

maximum

load

(kJ m–3)

Llomba (Pycnanthus Green 0.40 37,900 7,900 — 20,000 5,800 2,100 AF

angolensis) 12% 68,300 11,000 — 38,300 8,900 2,700

Ipe (Tabebuia spp., Green 0.92 155,800 20,100 190 71,400 14,600 13,600 AM

lapacho group) 12% 175,100 21,600 152 89,700 14,200 16,400

Iroko (Chlorophora spp.) Green 0.54 70,300 8, 900 72 33,900 9,000 4,800 AF

12% 85,500 10,100 62 52,300 12,400 5,600

Jarrah (Eucalyptus marginata) Green 0.67 68,300 10,200 — 35,800 9,100 5,700 AS

12% — 111,700 13,000 — 61,200 14,700 8,500

Jelutong (Dyera costulata) Green 0.36 38,600 8,000 39 21,000 5,200 1,500 AS

15% 50,300 8,100 44 27,000 5,800 1,700

Kaneelhart (Licaria spp.) Green 0.96 153,800 26, 300 94 92,300 11,600 9,800 AM

12% 206,200 28,000 121 120,000 13,600 12,900

Kapur (Dryobalanops spp.) Green 0.64 88,300 11, 000 108 42,900 8,100 4,400 AS

12% 126,200 13,000 130 69,600 13,700 5,500

Karri (Eucalyptus diversicolor) Green 0.82 77,200 13,400 80 37,600 10,400 6,000 AS

12% 139,000 17,900 175 74,500 16,700 9,100

Kempas (Koompassia Green 0.71 100,000 16,600 84 54,700 10,100 6,600 AS

malaccensis) 12% 122,000 18,500 106 65,600 12,300 7,600

Keruing (Dipterocarpus spp.) Green 0.69 82,000 11, 800 96 39,200 8,100 4,700 AS

12% 137,200 14,300 162 72,400 14,300 5,600

Lignumvitae (Guaiacum spp.) Green 1.05 — — — — — — AM

12% — — — — 78,600 — 20,000

Limba (Terminalia superba) Green 0.38 41,400 5,300 53 19,200 6,100 1,800 AF

12% 60,700 7,000 61 32,600 9,700 2,200

Macawood (Platymiscium spp.) Green 0.94 153,800 20, 800 — 72,700 12,700 14,800 AM

12% 190,300 22,100 — 111,000 17,500 14,000

Mahogany, African Green 0.42 51,000 7,900 49 25,700 6,400 2,800 AF

(Khaya spp.) 12% 73,800 9,700 57 44,500 10,300 3,700

Mahogany, true Green 0.45 62,100 9,200 63 29,900 8,500 3,300 AM

(Swietenia macrophylla) 12% — 79,300 10,300 52 46,700 8,500 3,600

Manbarklak (Eschweilera spp.) Green 0.87 117,900 18, 600 120 50,600 11,200 10,100 AM

12% 182,700 21,600 230 77,300 14,300 15,500

Manni (Symphonia globulifera) Green 0.58 77,200 13,500 77 35,600 7,900 4,200 AM

12% 116,500 17,000 114 60,800 9,800 5,000

Marishballi (Lincania spp.) Green 0.88 117,900 20,200 92 52,300 11,200 10,000 AM

12% 191,000 23,000 98 92,300 12,100 15,900

Merbau (Intsia spp.) Green 0.64 88,900 13, 900 88 46,700 10,800 6,100 AS

15% — 115,800 15,400 102 58,200 12,500 6,700

Mersawa (Anisoptera spp.) Green 0.52 55,200 12, 200 — 27,300 5,100 3,900 AS

12% 95,100 15,700 — 50,800 6,100 5,700

Mora (Moraspp.) Green 0.78 86,900 16,100 93 44,100 9,700 6,400 AM

12% 152,400 20,400 128 81,600 13,100 10,200

Oak (Quercus spp.) Green 0.76 — — — — — — AM

12% 158,600 20,800 114 — — 11,100

Obeche (Triplochiton Green 0.3 35,200 5,000 43 17,700 4,600 1,900 AF

scleroxylon) 12% 51,000 5,900 48 27,100 6,800 1,900