ASTM International - ASTM A694/A694M-08
Standard Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service
|Publication Date:||1 October 2008|
|ICS Code (Iron and steel forgings):||77.140.85|
1.1 This specification covers forged or rolled steel pipe flanges, forged fittings, valves, and parts suitable for use with high-strength transmission-service
1.2 Several grades of material, based on minimum yield strength requirements, are covered, as indicated in Table 1.
1.3 Supplementary Requirements are provided. Supplementary Requirement S 1 is provided for use when purchaser approval is required for repair welding.
1.4 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.
1.5 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 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 standard.
TABLE 1 Tensile Requirements
|Grade||Yield Strength (0.2 % Offset), min, ksi [MPa]||Tensile Strength,|
min, ksi [MPa]
|Elongation in 2 in. or 50 mm, min %|
|F42||42 ||60 ||20|
|F46||46 ||60 ||20|
|F48||48 ||62 ||20|
|F50||50 ||64 ||20|
|F52||52 ||66 ||20|
|F56||56 ||68 ||20|
|F60||60 ||75 ||20|
|F65||65 ||77 ||20|
|F70||70 ||82 ||18|
This specification covers carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service. A chemical heat analysis of the steel shall be made,... View More
This specification covers carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service. A chemical heat analysis of the steel shall be made, and the steel shall conform to specified chemical composition requirements. Materials adhere to testing and tensile property requirements as well.View Less