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ASTM A517 Steel for storage tanks

ASTM A517 Steel for storage tanks

ASTM A517 is the standard specification covering high strength quenched and tempered alloy steel plates intended for use in fusion welded boilers and other pressure vessels. The reason being that A517 steels are primarily intended for cryogenic storage tanks in petrochemical facilities as well on road and railway tankers.

There are 8 grades available with which small traces of nickel, chromium, molybdenum, boron, vanadium, titanium, zirconium, or copper may be added deliberately and respectively. Alloy steel plates of A517/ SA-517 have high strength in combination with good ductility. They can be particularly used for subzero and cryogenic applications with approximate lowest temperature limit -75° F [-59&].

ASTM A517 is the standard specification of high-strength pressure vessel plates in the quenched and tempered condition. As you may know, most steels are prone to cracking at low temperatures. This is a result of what is known as brittle-ductile transition; where the cold causes a dramatic decrease in material toughness, making it more susceptible to fracture. A thorough understanding of these temperature-dependent fracture mechanics has informed the strict parameters of ASTM A517 steel specifications. This makes A517 grades sturdy and reliable for cold storage applications–even on the road.

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