Wheatland ASTM A 53 Schedule 40 and Schedule 80 …
ASTM A 53 Grades A and B: Black and Galvanized Pipe is manufactured for ordinary use in steam, water,gas, and air lines. UL Listed and FM Approved, sizes 1" through 6" nominal, for use in Fire Sprinkler Pipe Applications. Mechanical Properties Grade A: Yield 30,000 [205 Mpa] psi minimum Tensile: 48,000 psi [330 Mpa] minimum Grade B: Yield ...