4 in expansion or contraction per 1000 ft per 10 deg F temperature change
1.41 specific gravity
7000 psi tensile strength
115 R-scale hardness
450 V/mil dielectric strength
220 psi at 73.4 deg F
4 in D socket
Pressure rating is the estimated maximum pressure that water as the medium in the pipe can exert continuously with a high degree of certainty that failure of the pipe will not occur