Astm a105

Astm a105

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ASTM A105 / A105M – 11a Standard Specification for Carbon Steel Forgings for Piping Applications
Active Standard ASTM A105 / A105M Developed by Subcommittee: A01.22 | Book of Standards Volume: 01.01 Astm a105

1.1 This Astm a105 specification covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flanges, fittings, valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the MSS, ASME, and API specifications referenced in Section 2.

Forgings made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. Larger forgings may be ordered to Specification Astm A266/A266M. Tubesheets and hollow cylindrical forgings for pressure vessel shells are not included within the scope of this specification. Although this specification covers some piping components machined from rolled bar and seamless tubular products (see 4.2), it does not cover raw material produced in these product forms.

1.2 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.

1.3 Specification Astm A266/A266M covers other steel forgings and Specifications A675/A675M and A696 cover other steel bars.

1.4 This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”

2. Referenced Documents
ASTM Standards
ASTM A266/A266M Specification for Carbon Steel Forgings for Pressure Vessel Components
ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A675/A675M Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties
ASTM A696 Specification for Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components
ASTM A788/A788M Specification for Steel Forgings, General Requirements
ASTM A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
MSS Standards

SP44 Standard for Steel Pipe Line Flanges
ASME Standards

B16.47 Large Diameter Steel Flanges
ASME Boiler and Pressure Vessel Code

SectionIX Welding Qualifications
API Standards

API-602 Compact Design Carbon Steel Gate Valves for Refinery Use

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