General Questions & Answers

Which ASME standard covers the dimensions of buttweld elbows?

ASME B16.9 Factory-Made wrought buttwelding fittings covers overall dimensions, tolerances, ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1/2 through NPS 48 (DN 15 through DN 1200). It covers fittings of any producible wall thickness. This standard does not cover low pressure corrosion resistant buttwelding fittings.