CW Certified Welder study guide
CW Certified Welder · Work through your exam, one topic at a time.
The AWS Certified Welder (CW) is the entry point into AWS welding certification and is a performance-based program - AWS states there are no prerequisite courses or certifications required. Instead of a written exam, you weld test specimens, most commonly at an Accredited Test Facility (ATF), and the completed work is inspected to confirm it meets AWS standards. The credential is deliberately narrow in scope: it records the specific welding process, the position, and the material and product form you qualified on. Plate tests cover flat, horizontal, vertical and overhead positions; pipe tests cover small- and large-diameter pipe, with the 6G fixed-pipe position widely treated as the most demanding. The CW Certified Welder study guide has 4 sections and about 1,237 words.
01Welding Process and Essential Variables
Every process is qualified through a welding procedure specification (WPS) built on essential variables. Change one beyond the code's allowance and the qualification no longer covers the work.
308 words, about 2 min02Welding Position: Plate and Pipe Designations
Positions use a number plus G (groove) or F (fillet): 1 flat, 2 horizontal, 3 vertical, 4 overhead. For plate, 3G has the joint axis vertical with the face perpendicular to the bench; 4G is overhead.
310 words, about 2 min03Material and Product Form: Plate, Small- and Large-Diameter Pipe
Plate tests use coupons from flat stock; pipe tests weld all the way around a cylindrical section. Pipe demands root control: gap, root face, and, where the procedure allows it, backing, consumable inserts, or a carefully controlled root pass.
309 words, about 2 min04Weld Quality and Acceptance of the Test Weldment
Before a coupon is cut or bent, the finished weldment is examined visually: bead profile and uniformity, reinforcement height, undercut at the toes, overlap, surface porosity, spatter, arc strikes, crater condition and distortion. Cracks anywhere in the weld or heat-affected zone are rejectable at any size, and no code grants an allowance for them.
310 words, about 2 min