Course Objective:

This program is to prepare the welder for the rigorous demands of industry for high quality x-ray work according to ASME section IX boiler and pressure vessel code and other governing codes.

Course Expectation:

Students will be required to pass written tests on GTAW and SMAW pipe welding, math and blueprints. Students will also be required to pass a 6" Sch. 80 carbon steel F3 F4 bend test before moving on to the GTAW processa,d a Department of Labour plate test including various pipe sizes 2"-12" and various schedules, 20-80. Practice will include 2", 6" and 12" diameter pipes as well as schedules 20, 40 and 80 pipe. Electrodes used for training shall be E6010, E6011 and E7018, F3 and F4. All shop testing shall be visually inspected and bend tested. Students are required to be in full attendance to achieve full credit for the program.

Course Topics:

1. Safety: WHIMS, First Aid, CPR, and general shop safety practices.
2. Applications of welded pipe.
3. Electrodes and consumables.
4. Math.
5. Blueprint reading.
6. Pipe connections.
7. Standards and tests for pipe welding.
8. Horizontal, vertical, flat and overhead welds on plate.
9. Procedure aids for quality tests.
10. Welding in the fixed position. 6" pipe schedule 80.
11. Welding in the 6G (fixed 45º) position.

Week No.1:

• Orientation.
• Safety training: WHIMS, First Aid, CPR.
• Shop safety and equipment.
• Welding procedures, materials and consumables.
• Blueprint reading and math.
• GTAW theory:
  • The GTAW process.
  • Basic equipment for GTAW.
• Prepare 6" sch. 80 carbon steel coupon using F3 F4 fillers for bend test.

• Complete 6" pipe bend test.
• Introduce first lessons on GTAW high-pressure pipe.
• GTAW theory:
  • Sheilding gases.
  • Regulators, Flowmeters, Torches.

• GTAW theory:
  • Electrodes for GTAW.
  • GTAW problems/solving.
  • Advantages of GTAW.
  • GTAW characteristics.
  • Math.
  • Blueprint reading.
• Procedures for material preparation, proper fit-up, welding, cleaning and bend testing, macro-etch of coupons.
• Pipe connections.
• Standards and tests for pipe welding: Hydrostatic testing, radiograph testing, bend testing.
• Practice welding in the 1G position.
• Practice welding in the 2G position.
• Practice welding in the 5G position.
• Practice welding in the 6G position.
• Cut and prepare coupons to specifications and bend test as per ASME requirements.

Week No.1

• Review Safety.
• Review Electrodes and consumables.
• Review Blueprints and math.
• Prepare plate and weld in all positions.

• Follow procedure for testing on plate as required by ASME.
• Blueprint reading, math and welding theory.
• Practice welding on plate in the flat, vertical, horizontal, and overhead positions.
• Prepare plate for visual and plate testing as required by codes.

• Welding theory, math and blueprint reading.
• Pope connections.
• Standards and tests for pipe welding: Hydrostatic welding, radiographic testing, bend testing.
• Procedure aids for quality tests: Ductile material, proper electrodes, preparation of material and macro-Etch of coupons.
• Practice welding pipe in the 1G position.
• Practice welding pipe in the 2G, 5G positions.
• Practice welding pipe in the 6G position, pipe inclined fixed.(45º +\- 5º)
• Cut and prepare coupons to specifications and bend test as per ASME requirements.

Pipe Welding Techniques

Author:	Griffin, Roden and Briggs
	1990 edition
	Delmar Publishing