Click image to view full size image
Minimum Tensile for the Awwa C207 Class D Gasket is about 50,000 psi, while the minimum Yield strength of the Awwa C207 Class E Flanges is upto 32,000 psi. The Elongation percent of Awwa C207 Class D Flange Dimensions is around 2 in - 18% and 8 to 14 in Frequently used material to produce Awwa C207 Class B Flanges may include the ASTM A-36 or ASTM A-283 plate steels or A105 forged steel or the ASTM A181 as they meet the requirements of the AWWA C207 specification.
http://www.sxzwflange.com/