SCH80 smls black nipples made by CNC
Black & Galvanized, Std. Sch. 40, XH Sch. 80, Sch. 160, XXH
Steel Pipe used for Schedules 40 & 80 welded nipples conforms to ASTM A53
Steel Pipe used for Schedule 80 nipples conforms to ASTM A106 Grade B
Both welded and seamless steel nipples conform to ASTM A733
NPT threads on all nipples conform to ASME B1.20.1
Independent lab verification that fittings meet applicable chemical & physical properties
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