“A514 steel”的意思、由来-开放百科全书

A514 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). The ArcelorMittal trademarked name is T-1.^[1] A514 is primarily used as a structural steel for building construction. A517 is a closely related alloy that is used for the production of high-strength pressure vessels.

This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.

Specifications

A514

The tensile yield strength of A514 alloys is specified as at least {{convert|100|ksi|MPa|sigfig=3|abbr=on|lk=on}} for thicknesses up to {{convert|2.5|in|mm|1}} thick plate, and at least {{convert|110|ksi|MPa|sigfig=3|abbr=on}} ultimate tensile strength, with a specified ultimate range of {{convert|110|-|130|ksi|MPa|sigfig=3|abbr=on}}. Plates from {{convert|2.5|to|6.0|in|mm|1}} thick have specified strength of {{convert|90|ksi|MPa|sigfig=3|abbr=on}} (yield) and {{convert|100|-|130|ksi|MPa|sigfig=3|abbr=on}} (ultimate).^[1]^[2]

A517

A517 steel has equal tensile yield strength, but slightly higher specified ultimate strength of {{convert|115|-|135|ksi|MPa|0|abbr=on|lk=on}} for thicknesses up to {{convert|2.5|in|mm|1}} and {{convert|105|-|135|ksi|MPa|0|abbr=on}} for thicknesses {{convert|2.5|to|6.0|in|mm|1}}.

Usage

A514 steels 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.

In addition, A514 steels are specified by military standards (ETL 18-11) for use as small-arms firing range baffles and deflector plates.^[3]

References

1. ^¹http://pc.arcelormittal.com/NA/plateinformation/documents/en/Inlandflats/ProductBrochure/ARCELORMITTAL%20A514%20AND%20T-1.pdf
2. ^Manual of Steel Construction, 8th Edition, 2nd revised printing, American Institute of Steel Construction, 1987, ch 1 page 1-5
3. ^{{cite web|title=ETL 18-11|url=http://www.wbdg.org/ccb/AF/AFETL/etl_11_18.pdf}}