ASTM A182/A182M-19 - 15.3.2019
 
1. Scope

1.1 This specification2 covers forged low alloy and stainless steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts to specified dimensions or to dimensional standards, such as the ASME specifications that are referenced in Section 2.

1.2 For bars and products machined directly from bar (other than those directly addressed by this specification; see 6.4), refer to Specifications A479/A479M and A739 for the similar grades available in those specifications. Products made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. For larger products and products for other applications, refer to Specifications A336/A336M and A965/A965M for the similar ferritic and austenitic grades, respectively, available in those specifications.

1.3 Several grades of low alloy steels and ferritic, martensitic, austenitic, and ferritic-austenitic stainless steels are included in this specification. Selection will depend upon design and service requirements. Several of the ferritic/austenitic (duplex) grades are also found in Specification A1049/A1049M.

1.4 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.

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

1.6 The values stated in either SI units or inch-pound units are to be regarded separately as the 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.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

A965/A965M-23

Standard Specification for Steel Forgings, Austenitic, for Pressure and High Temperature Parts

A788/A788M-23

Standard Specification for Steel Forgings, General Requirements

A763-15(2021)

Standard Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless Steels

A923-23

Standard Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels

A739-90a(2022)

Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both (Includes all amendments and changes 3/7/2022).

A484/A484M-24

Standard Specification for General Requirements for Stainless Steel Bars, Billets, Shapes, and Forgings

A388/A388M-23

Standard Practice for Ultrasonic Examination of Steel Forgings

A336/A336M-23

Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts

A275/A275M-23

Standard Practice for Magnetic Particle Examination of Steel Forgings

E340-23

Standard Practice for Macroetching Metals and Alloys

E165-09

Standard Practice for Liquid Penetrant Examination for General Industry

E92-23

Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

A1084-15a(2022)

Standard Test Method for Detecting Detrimental Phases in Lean Duplex Austenitic/Ferritic Stainless Steels (Includes all amendments and changes 6/8/2022).

A1049/A1049M-18(2023)

Standard Specification for Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components

A961/A961M-23

Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications

E112-13(2021)

Standard Test Methods for Determining Average Grain Size

A262-15(2021)

Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

A479/A479M-23a

Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels (Includes all amendments and changes 6/9/2023).