ASME B16.9 standard is used for factory-made wrought buttwelding fittings in sizes NPS ½ through NPS 48(DN 15 through DN 1200).It covers the information of general scope,pressure ratings,sizes,marking requirement, material,pipe fittings dimensions,butt welding ends preparation,design proof test,test and inspection for products, and the tolerance requirements.

The products include 45 degree/90 degree long radius elbows,45 degree/90 degree 3D elbows,90 degree short radius elbows,90 degree long radius reducing elbows,long radius 180 degree elbows,short radius 180 degree elbows,straight tees and crosses,reducing outlet tees and reducing outlet crosses,lap joint stub ends,caps,concentric reducers and eccentric reducers.

Click here for PDF ANSI B16.9 – 2012 – Factory-Made Wrought Steel Butt-welding Fittings>>>

ASME-ANSI-B16.9-Wrought-Steel-Butt-Weld-Fittings.pdf

If you want to check the detail standard content, you can buy from following link:

https://www.asme.org/products/codes-standards/b169-2012-factory-made-wrought-buttwelding