ASTM A105 Flanges

Standard Scope

ASTM A105 Flanges covers forged carbon steel flange and piping components for ambient and higher-temperature service in pressure systems. It also includes pipe fittings, valves and similar parts. The maximum weight manufactured forging part follows by this standard is 10000 bounds (4540kg). The larger forgings can according by the standard A 266/A266M. This specification do not covers tube sheets and hollow cylindrical forgings for pressure vessel shells .

This specification does not cover raw material which round bar and seamless tubular-produced piping components.

Referenced documents

The following list of standard apply to these specification:

ASTM standards:

• • A266/A266M Specification for carbon steel forgings for pressure vessel components.

• • A675/A675M Specification for hot-rolled, special quality and mechanical properties, carbon steel bars.

• • A696 Specification for steel bars, carbon, hot-rolled or cold-finished,special quality, for pressure piping components.

• • A788/A788M Specification for steel forgings, general requirements.

• • A961/961M general requirements for steel flange, forging fittings, valve and parts for piping applications.

MSS standard:

• • SP44 Standard for steel pipe line flanges

ASME Standard:

• • B16.5 Dimensional standard for steel pipe flanges and flanges fittings

• • B16.9 Wrought steel butt-welding fittings

• • B16.10 Face-to-face and end-to-end dimensions of ferrous valves

• • B16.11 Forged steel fittings, socket weld and threaded

• • B16.34 Valves connect by flanges, threaded and welding end

• • B16.47 Large diameter steel flanges

• • ASME boiler and pressure vessel code:

API standard:

• • API-600 Flanged and butt-Welding-end steel gate valves

• • API-602 Compact design carbon steel gate valves for refinery use