Buttweld Fitting Standards

ASME Standards

• ASME B16.9 - Factory-Made Wrought Buttwelding Fittings

Branch Connections

	Lateral - (in)		Stub-in - Short (in) Stub-in - Long (in)
	Saddle - (in) Saddle - Wrap Around (in)		Tee - Straight (in) (mm) Tee - Reducing (in)

Bends, Ends & Reducers

	Cap - (in)		Reducer - Concentric/Eccentric (in)
	Elbow - 45 Degree, Long Radius (in) Elbow - 45 Degree, Long Radius, Long Tangent (in) Elbow - 45 Degree, Three Radius (in)		Return - 180 Degree, Short Radius (in) Return - 180 Degree, Long Radius (in)
	Elbow - 90 Degree, Long Radius, Buttweld (in) (mm) Elbow - 90 Degree, Long Radius, Long Tangent (in) Elbow - 90 Degree, Long Radius, Reducing (in) Elbow - 90 Degree, Short Radius (in) Elbow - 90 Degree, Short Radius, Long Tangent (in) Elbow - 90 Degree, Three Radius (in)		Swage, Concentric/Eccentric (in)

Abbreviations

• FCS - forged carbon steel
• WCS - wrought carbon steel

Buttweld Fitting Related articles

• See pipe fitting
• See buttweld fitting
• See threaded fitting
• See socket weld fitting