This specification defines the requirements for joining metals and alloys using the gas-tungsten-arc welding (GTAW) methods.

Application:

This welding process has been used typically for joining metallic components.

Classification:

Weldments covered by the specification are classified as follows:

Class A:

Weldments whose fractures would cause injury to personnel, loss of a vehicle or system, failure to complete an assigned mission task, or welds considered highly stressed.

Class B:

All weldments that are not classified Class A.

Where no class is specified, Class B shall apply.

Safety - Hazardous Materials:

While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.