ASME Specifications

ASME Specifications

ASME specifications are published by the American Society of Mechanical Engineers (ASME). These specifications develop a standard for the manufacturing, testing, properties, and dimensions of steel pipe and components.

ASME SA53, modeled after ASTM A53, is a specification for hot-dipped, galvanized electric resistance welded, Grade B pipe, intended for use in mechanical and pressure applications. ASME SA53 pipe is designed for welding, grooving, threading, and bending but not for flanging. It is suitable for application in steam, water, gas, and air lines.

ASME SA106, also known as the ASTM A106, is a specification covering seamless carbon steel pipe used for high temperature service. This pipe is commonly used in the construction of petrochemical plants, refineries, power plants, boilers and ships.

ASME B16.5
ASME B16.5 defines the specifications for pipe flanges and flanged fittings, ranging from NPS ½ to NPS 24.

ASME B16.9
B16.9 is a specification for factory-made wrought buttwelding fittings. This specification covers fittings sized NPS ½ through NPS 48. It does not, however, cover fabricated fittings.

ASME B16.11
B16.11 is a standard specification for threaded, socket weld, and forged fittings ranging in size from NPS ⅛ through NPS 4.

ASME 16.25
ASME 16.25 is a specification covering buttwelding ends, tolerances, and dimensions. This ASME standard pertains to the preparation of the buttwelding ends of pipe components to be attached to the piping system via welding.

ASME B16.28
The B16.28 specification is designed for wrought steel buttwelding short radius elbows and returns, sized from NPS ½ to NPS 24.

ASME B16.36
ASME B16.36 is a specification covering orifice flanges, sized from NPS ½ through NPS 24.

ASME B16.47
B16.47 covers specifications for large diameter steel flanges NPS 26 through NPS 60. Relevant pressure classes include: 75, 150, 300, 400, 600 and 900.

ASME B36.10
B36.10 is a specification published by the ASME to cover welded and seamless wrought steel pipe, size from NPS ⅛ through NPS 80.

ASME B36.19
B36.19 is a specification for stainless steel pipe, sizes NPS ⅛ through NPS 30.

ASME A333 is modeled after the ASTM A333 specification. It applies to nominal (average) wall carbon and alloy steel pipe. This pipe is used for low temperature service and other applications where notch toughness is necessary. Numerous grades of ferritic steel are included in this specification.

Also known as the ASTM A335, the ASME A335 specification pertains to a seamless ferritic alloy-steel pipe. This pipe is intended for high-temperature service and is suitable for fusion welding and forming operations, such as bending and flanging.