Specific Gravity

-

1.6

0.8

7.8

2.3

Density

Mg/m²

1600

800

7760

2310

Actual Strength

Tension

Compression

Shear

KN/M²

x 104

-

7.6

11.0

6.9

-

5.8

2.85

1.20

-

55

24

35

-

-

0.69 permissible

0.069

Specific Strength

Act 51 Sp. qr.

Tension

Compression

Shear

-

-

KN/M²xlO⁴

-

-

-

-

4.7

6.9

4.3

-

-

7.2

3.6

1.5

-

-

7.1

3.1

4.9

-

-

-

0.30

0.03

Actual Modulate

Tension

Shear

-

KN/M²xlO⁴

-

-

0.55

0.28

-

0.80

0.034

-

20.7

8.6

-

-

-

Light transmission (x)

%

85

Opaque

Opaque

Opaque

Maintenance

-

Max useful

life of 30 yrs.

without

maintenance

Preservatives

Varnish

Paint-

necessary

Corrosion

Protection

Ossentlel-primer

or paint +

decorative finish

Mone. Except

Where decorative

finishes are

required

Density

Mg/m³

7.86

7.916

2.71

1.384

1.80

Coeff of Thermal

Expansion

-

/°Cx 10⁶

-

11.83

-

16.744

-

24.024

-

30.94

-

23.66

Thermal

Conductivity

W/m.°c

40.376

13.55

194.67

0.2163   .

0.2163

Modulus of Elasticity

in Tension

-

MPaxlO³

-

206.844

-

193.05

-

68.948

-

4.8-5.5

-

5.5-10.34

Tensile Strength

MPa

455.1

586.1

82.7

62.1-82.7

82.7-137.9

Yield Strength

MPa

227.5

227.5

27.6

62.1-82.7

68.95-137.9