ASTM A961/A961M-19 - 1.3.2019
 
1. Scope

1.1 This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications under any of the following individual product specifications:

Title of Specification

ASTM Designation

 

 

Forgings, Carbon Steel, for Piping Components

A105/A105M

Forgings, Carbon Steel, for General-Purpose Piping

A181/A181M

Forged or Rolled Alloy-Steel Pipe Flanges, Forged

A182/A182M

  Fittings, and Valves and Parts for High Temperature
  Service

 

Forgings, Carbon and Low Alloy Steel, Requiring Notch

A350/A350M

  Toughness Testing for Piping Components

 

Forged or Rolled 8 and 9 % Nickel Alloy

A522/A522M

  Steel Flanges, Fittings, Valves, and Parts

 

  for Low-Temperature Service

 

Forgings, Carbon and Alloy Steel, for Pipe Flanges,

A694/A694M

  Fittings, Valves, and Parts for High-Pressure
  Transmission Service

 

Flanges, Forged, Carbon and Alloy Steel for Low

A707/A707M

  Temperature Service

 

Forgings, Carbon Steel, for Piping Components with

A727/A727M

  Inherent Notch Toughness

 

Forgings, Titanium-Stabilized Carbon Steel, for

A836/A836M

  Glass-Lined Piping and Pressure Vessel Service

 

1.2 In case of conflict between a requirement of the individual product specification and a requirement of this general requirement specification, the requirements of the individual product specification shall prevail over those of this specification.

1.3 By mutual agreement between the purchaser and the supplier, additional requirements may be specified (see Section 4.1.2). The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon between the purchaser and supplier.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text and the tables, 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. The inch-pound units shall apply, unless the “M” designation (SI) of the product specification is specified in the order.

1.5 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

A1058-19

Standard Test Methods for Mechanical Testing of Steel Products´Metric

B880-24

Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys

A967/A967M-25

Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts

A941-26a

Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys (Includes all amendments and changes 4/15/2026).

A836/A836M-26

Standard Specification for Titanium-Stabilized Carbon Steel Forgings for Glass-Lined Piping and Pressure Vessel Service

A751-25

Standard Test Methods and Practices for Chemical Analysis of Steel Products

A727-A727M-14

Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness

A707/A707M-25

Standard Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service

A700-14(2019)

Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment

A522/A522M-26

Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

A370-26

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

A350/A350M-26a

Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components (Includes all amendments and changes 3/17/2026).

A275/A275M-23

Standard Practice for Magnetic Particle Examination of Steel Forgings

A182/A182M-26a

Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service (Includes all amendments and changes 6/25/2026).

A181/A181M-25

Standard Specification for Carbon Steel Forgings, for General-Purpose Piping

A105/A105M-26

Standard Specification for Carbon Steel Forgings for Piping Applications

A694/A694M-16(2022)

Standard Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service

ASME

Boiler and Pressure Vessel CodeSection IX

E1916-24

Standard Guide for Identification of Mixed Lots of Metals

E709-21

Standard Guide for Magnetic Particle Testing

E381-22

Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings

E165/E165M-23

Standard Practice for Liquid Penetrant Testing for General Industry

A991/A991M-25

Standard Test Method for Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products