American Society of Mechanical Engineers

Founded in 1880 by a small group of leading industrialists, ASME is a not-for-profit membership organization that enables knowledge sharing and skills development across all engineering disciplines.

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USA

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Series details	Title	Year	Status
ASME Standard B16.22:2018	Wrought copper and copper alloy solder-joint pressure fittings	2018	Withdrawn
ASME Standard B16.22:2021	Wrought copper and copper alloy solder-joint pressure fittings	2021	Current
ASME Standard B16.23:2016	Cast copper alloy solder joint drainage fittings: DWV	2016	Withdrawn
ASME Standard B16.23:2021	Cast copper alloy solder joint drainage fittings: DWV	2021	Current
ASME Standard B16.25:2017	Buttwelding ends	2017	Withdrawn
ASME Standard B16.25:2022	Buttwelding ends	2022	Current
ASME Standard B16.26:2018	Cast copper alloy fittings for flared copper tubes	2018	Current
ASME Standard B16.29:2017	Wrought copper and wrought copper alloy solder-joint drainage fittings - DWV	2017	Withdrawn
ASME Standard B16.29:2021	Wrought copper and wrought copper alloy solder-joint drainage fittings - DWV	2021	Current
ASME Standard B16.34:2020	Valves - flanged, threaded, and welding end	2020	Current
ASME Standard B16.39:2019	Malleable iron threaded pipe unions: classes 150, 250, and 300	2019	Current
ASME Standard B16.40-2019	Manually operated thermoplastic gas shutoffs and valves in gas distribution systems	2019	Current
ASME Standard B16.50:2018	Wrought copper and copper alloy braze-joint pressure fittings	2018	Withdrawn
ASME Standard B16.50:2021	Wrought copper and copper alloy braze-joint pressure fittings	2021	Current
ASME Standard B18.6.1:1981	Wood screws (inch series)	1981	Current
ASME Standard B18.6.3:2013	Machine screws, tapping screws, and metallic drive screws (inch series)	2013	Current
ASME Standard B18.21.1:2009	Washers: Helical spring-lock, tooth lock, and plain washers (inch series)	2009	Current
ASME Standard B31.1:2020	Power piping	2020	Withdrawn
ASME Standard B31.1:2022	Power piping	2022	Current
ASME Standard B31.2:1968	Piping - fuel gas piping	1968	Withdrawn

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