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Australian White Cypress (Callitis glauca.)

Mechanical Property

Green

MC 12 per cent

Density (lb/cu. ft)

35.9

41.9

Static bendings:

            Stress at LP*(lb/sq.in.)

5950

8520

            Modulus of rupture (lb/sq.in.)

10,300

11,400

            Modulus of elasticity (1000 lb/sq. in.)

1110

1300

Compression parallel to grain:

            Stress at LP* (lb/sq.in.)

4080

4450

            Max. crushing strength (lb/sq.in.)

5220

7610

            Modulus of elasticity (1000 lb/sq. in.)

1240

1220

Maximum shear strength:

            Radial (lb/sq.in.)

1400

1510

            Tangential (lb/sq.in.)

1440

1590

Impact (toughness value):

            Radial (in./lb)

111

60

            Tangential (in./lb.)

117

70

Impact (Izod value):

            Radial (ft./lb.)

6.0

3.2

            Tangential (ft./lb.)

8.2

4.2

Cleavage (Max. cleavage strength):

            Radial

196

141

            Tangential

247

214

Compression Perpendicular to Grain: (6"x2"x2" specimen)

 

 

        Stress at LP*

 

 

            Radial (lb./sq.in.)

1330

2340

            Tangential (lb./sq.in.)

1380

2380

       Stress at 0.1in. 

 

 

            Radial (lb./sq.in.)

2150

3370

            Tangential (lb./sq.in.)

2130

3740

Hardness (Janka Hardness Value):

 

 

            Radial (lb.)

1040

1370

            Tangential (lb.)

1020

1380

            End (lb.)

1120

1760

Tension:

 

 

            Stress at LP* (lb./sq.in.)

1120

1850

            Max. Torsional Shear Strength (lb./sq.in.)

1870

2050

            Modulus of Rigidity(1000 lb./sq.in.)

124

182

Durability #

Class 1

Class 1

                                              * Limit of Proportionality

                                              # Durability Classification (Life in Ground)

                                                                                                Class 1 - Extremely Durable...............25-50 years

                                                                                                Class 2 - Durable ...............................15-25 years

                                                                                                Class 3 - Moderately Durable.............8 -15 years

                                                                                                Class 4 - Non Durable.........................less than 8 years

 




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