ASTM A105 Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A105 Standard Specification for Carbon Steel Forgings for Piping Applications

1.1 ASTM A105 Standard covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flflanges, fifittings, valves, and similar parts ordered either to dimensions specifified by the purchaser or to dimensional standards such as the MSS, ASME, and API specififications referenced in Section 2. Forgings made to this specifification are limited to a maximum weight of 10 000 lb [4540 kg]. Larger forgings may be ordered to Specifification A 266/A 266M. Tubesheets and hollow cylindrical forgings for pressure vessel shells are not included within the scope of this specifification. Although this specifification 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 specifified individually by the purchaser in the order. 

1.3 Specifification A 266/A 266M covers other steel forgings and Specififications A 675/A 675M and A 696 cover other steel bars. 

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

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