scope:

Application

This test method describes the standard procedures for testing the weldability of all specified types of high strength steels for resistance spot welding applications. All materials ordered and supplied must be qualified and accepted on the basis of these test procedures. Reference to this specification is made in the current Ford HSS materials specification.

A major (M) and minor (m) test series are described herein. The major test series is intended for use in obtaining supplier approvals. The minor test series is intended for use by Ford Manufacturing Divisions for evaluation of incoming steel shipments or for product quality control by steel suppliers. It is applicable only to steels having previously obtained approval.