ASTM A514 steel is a particular type of high strength steel, which is quenched and tempered alloy steel, with a yield strength of 100,000 psi (100 ksi or approximately 700 MPa). A517 is a closely related alloy that is used for the production of high-strength pressure vessels.
ASTM A514 steel are used where a weldable, machinable, very high strength steel is required to save weight or meet ultimate strength requirements. It is normally used as a structural steel in building construction, cranes, or other large machines supporting high loads.
ASTM A514 steel is used for a wide range of frame and structural components as well as high wear machine components that require high strength, impact and abrasion resistance. These include:
Earth moving equipment frames and components
Building and bridge frames and structural components
Truck frames and bodies
Transport vehicle frames and bodies
Storage tanks and containers, including supporting frames
Missile transporters and launchers
Oil field rigging
Booms (lattice-type and telescopic).
In addition, A514 steels are specified by military standards (ETL 18-11) for use as small-arms firing range baffles and deflector plates.
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