Alloy Plate - ASTM A 514 Standard specification for High-Yield-Strength, Quenched and Tempered Alloy Steel
First issued in 1964
This specification covers quenched and tempered alloy steel plates of structural quality in thickness of 6 in. and under.
The low carbon content of this grade allows it to be used in welded structures; suitable welding procedures for the grade and intended use are required.
This grade must be made to a fine grain practice and shall be killed
General requirements for delivery
Material shall conform to the requirements of ASTM A 6.
Chemical Requirements
This specification allows for fourteen different grades, each with a defined maximum thickness. The commercial market today has gravitated to four primary grades, each offering the least expensive chemistry for the thickness range covered.
Single values are maximums. Subject to product analysis tolerances in ASTM A 6.
Tensile Requirements (plate only)
*Adjustments to elongation requirements may apply depending on plate width. These values are for plates 96” wide as rolled.

