WELDING TEST COUPON PROCEDURES
Welding Procedures Follow a clear example of test coupons welding procedures for a 3G welding certification . In this 3G welding procedure the notes were taken from the same section of the AWS code that are used for the 3/8 inch limited thickness test procedure. The test coupons shall be pre-cut and ready to prepare. The welder shall grind the face of the test plates a minimum of one inch back from the bevel and a minimum of a quarter of an inch. Next the backing bar to bare metal shall be cleaned with a grinder and cleaned the oxidation off of the bevel, to bare metal. After the Welding Inspector will check the bevel angles with a protractor. 1. The Root Pass: The welder shall set to root opening with two 1/8 inch welding electrodes and then the test plate shall be inspected for fit-up. The test coupon shall be put in a vertical position and marked with a white marker to make su...