Is ASTM A514 grade plate weldable

ASTM A514 grade plate is weldable. When welding ASTM A514 grade plate to other low alloy or carbon steels of lower strength, it is better to use a filler metal with strength that meets the lower-strength base material's properties. For example, when welding ASTM A36 steel to ASTM A514 grade plate, a 70-KSI-tensile-strength electrode should be used to match the lower-strength A36 steel.

Preheat and interpass temperatures when welding ASTM A514 grade plate to itself or to other lower-strength materials:

Though ASTM A514 grade plate is readily weldable, excessive preheat and interpass temperatures and welding heat input can affect the chemical properties.