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Norm
ASTM A 420/A 420M
Ausgabedatum: 2013 10 01
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
This specification covers wrought carbon steel and alloy steel pipe fittings of seamless and welded construction for use in pressure piping and pressure vessel service at...
ZURÜCKGEZOGEN: 2014 10 01
Herausgeber:
American Society for Testing and Materials
Format:
Digital | 6 Seiten
Sprache:
Englisch
Aktuell Gültig:
ICS
This specification covers wrought carbon steel and alloy steel pipe fittings of seamless and welded construction for use in pressure piping and pressure vessel service at low temperatures. Materials shall consist of forgings, bars, plates, seamless or fusion welded tubular products with filler metal added, and shall be produced by open-hearth, basic-oxygen, or electric-furnace process. Forging or forming operations shall be performed by one or a combination of two or more of the following procedures: hammering, pressing, piercing, extruding, upsetting, working, bending, fusion-welding, or machining. All welding shall be completed prior to the austenitizing heat treatment, which shall be executed in the normalized, normalized and tempered, annealed, or quenched and tempered conditions. Steel specimens shall conform to required values of chemical composition, tensile strength, yield strength, elongation, wall thickness, and Charpy V-notch impact value. All fusion-welded butt joints shall undergo radiographic examination, while hydrostatic testing of fittings is not required in this specification. Repair welding shall be permissible for parts made to dimensional standards.
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↖
ASTM A 420/A 420Ma
2010
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperatu...
Norm
ASTM A 420/A 420M
2010
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperatu...
Norm
ASTM A 420/A 420M
2007
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperatu...
Norm
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2006
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperatu...
Norm
Norm
Ausgabedatum :
2014 10 01
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service