www.futurepipe.com/usa
www.futurepipe.com/usa
www.futurepipe.com/usa
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5. PHYSICAL/MECHANICAL PROPERTIES<br />
Dimensions<br />
Dimensions Specification Tolerance<br />
Laying length (L)<br />
End squareness<br />
End planeness<br />
Standard Lengths 16,<br />
20 or 40 ft<br />
10 ft for jacking pipe<br />
End shall be both<br />
square to axis of<br />
the pipe and plane<br />
Thickness<br />
Minimum average<br />
per 5.4<br />
Roundness* Pipes shall be<br />
deviation round<br />
* Pipe self-weight not included<br />
Stiffness<br />
Stiffness<br />
Class<br />
+/-1”<br />
Not more than 0.08 + 0.005 D”<br />
where D is the nominal internal<br />
diameter of the pipe in inches, with<br />
a maximum of 0.25 inches<br />
Single point; 87.5% of published<br />
thickness<br />
+/- 1%<br />
Minimum Pipe Stiffness (PS*)<br />
F/ Y = E.I/(0.149 r 3 )<br />
psi kPa<br />
SN 18 18.0 124<br />
SN 36 36.0 248<br />
SN 46 46.0 316<br />
SN 72 72.0 496<br />
* Pipe Stiffness (PS)@ 5 % deflection as defined by ASTM & AWWA<br />
Other Properties<br />
Property Design Value<br />
Linear coefficient of thermal<br />
expansion (in.in/°F)<br />
14-17 x 10-6 Poisson’s ratio 0.25 - 0.3<br />
Page 15 of 51
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