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  • ASTM
    A961/A961M-12a Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
    Edition: 2012
    $103.58
    Unlimited Users per year

Description of ASTM-A961 2012

ASTM A961 / A961M - 12a

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

Active Standard ASTM A961 / A961M | Developed by Subcommittee: A01.22

Book of Standards Volume: 01.01




ASTM A961 / A961M

Abstract

This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications. If the primary melting is required it shall incorporate separate degassing or refining and may be followed by secondary melting, such as electroslag remelting or vacuum remelting. If secondary melting is employed, the heat shall be defined as all of the ingot remelted from a single primary heat. Material requiring heat treatment shall be treated as specified in the individual product specification using the following procedures such as full annealing, solution annealing, isothermal annealing, normalizing, tempering and post-weld heat treatment, stress relieving. Heat analysis shall be used to determine the percentages of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, tantalum, copper, cobalt, nitrogen, aluminum, vanadium, cerium to meet the required chemical composition. The product analysis shall be used to determine if the chemical composition shall conform to the limits of the product specified. Mechanical tests shall be performed to determine the mechanical properties such as hardness, tensile properties, and impact properties.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A105/A105M Specification for Carbon Steel Forgings for Piping Applications

A181/A181M Specification for Carbon Steel Forgings, for General-Purpose Piping

A182/A182M Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

A275/A275M Practice for Magnetic Particle Examination of Steel Forgings

A350/A350M Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components

A370 Test Methods and Definitions for Mechanical Testing of Steel Products

A522/A522M Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

A694/A694M Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service

A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment

A707/A707M Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service

A727/A727M Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness

A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

A836/A836M Specification for Titanium-Stabilized Carbon Steel Forgings for Glass-Lined Piping and Pressure Vessel Service

A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys

A967 Specification for Chemical Passivation Treatments for Stainless Steel Parts

A991/A991M Test Method for Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products

A1058 Test Methods for Mechanical Testing of Steel Products--Metric

B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys

E165 Practice for Liquid Penetrant Examination for General Industry

E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings

E709 Guide for Magnetic Particle Testing

E1916 Guide for Identification of Mixed Lots of Metals

ASME Standard

ASME Boiler and Pressure Vessel Code-Section IX

Manufacturers Standardization Society Standard

SP 25 Standard Marking System of Valves, Fittings, Flanges and Unions

Keywords

alloy steel; carbon steel; fittings; flanges; forgings; general requirement; piping applications; pressure containing parts; stainless steel; temperature service applicationselevated; temperature service applicationshigh; valves;


ICS Code

ICS Number Code 23.040.01 (Pipeline components in general. Pipelines); 77.140.20 (Steels of high quality)


DOI: 10.1520/A0961_A0961M-12A

ASTM International is a member of CrossRef.

ASTM A961 / A961M

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