ASME B16.28-1994 specifies requirements for wrought carbon and alloy steel buttwelding short radius elbows and 180-degree returns. It covers design and pressure ratings, nominal pipe sizes, marking, materials, fitting dimensions, end preparation, production tests, design proof tests, tolerances, and metric reference tables. The standard includes dimensional tables for short radius elbows and returns ranging from NPS 1 through NPS 24 and references related ASME and ASTM requirements, including ASME B16.25, ASME B36.10M, ASTM A234, ASTM A403, and ASTM A420.
Application Scope: Applicable to manufacturers, engineers, inspectors, purchasers, and piping professionals specifying or evaluating wrought steel buttwelding short radius elbows and returns for industrial piping systems.
