This unit of competency defines the skills and knowledge required to prepare and produce welds to code standards using gas tungsten arc welding (GTAW) on a range of materials.

Butt and fillet welds in the flat, horizontal, vertical and overhead positions would be applied to meet AS 1210-2010 Pressure vessels, AS 4041-2006 (R2016) Pressure piping, and American Society of Mechanical Engineers (ASME) IX or equivalent. The unit, together with unit MEM05026 Apply welding principles, may satisfy the requirements of AS 1796-2001 (R2016) Certification of welders and welding supervisors, Certificate 7.

Where advanced manual thermal cutting, gouging and shaping is required unit MEM05008 Perform advanced manual thermal cutting, gouging and shaping should also be selected.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Unit details

Study level:
Vocational and further education (TAFE)
Unit code:


MEM05007 - Perform manual heating and thermal cutting

MEM05019 - Weld using gas tungsten arc welding process

MEM05020 - Perform advanced welding using gas tungsten arc welding process

MEM05026 - Apply welding principles

MEM05049 - Perform routine gas tungsten arc welding

MEM05051 - Select welding processes

MEM05052 - Apply safe welding practices

MEM09002 - Interpret technical drawing

MEM11011 - Undertake manual handling

MEM12023 - Perform engineering measurements

MEM12024 - Perform computations

MEM13015 - Work safely and effectively in manufacturing and engineering

MEM14006 - Plan work activities

MEM16006 - Organise and communicate information

MEM18001 - Use hand tools

MEM18002 - Use power tools/hand held operations


Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each unit's learning outcomes and performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines. Students will be expected to demonstrate the following required skills: - following work instructions, standard operating procedures (SOPs) and safe work practices; identifying and interpreting specifications from drawings, sketches and verbal or written job instructions for performing welds using gas tungsten arc welding (GTAW) to code standards; - cleaning and preparing materials for welding to specifications; - setting up welding equipment, including performing routine maintenance; - consistently weld materials to specifications; - rectifying any discontinuities, and; - completing and maintaining weld records related to GTAW to code standards onto standard workplace forms.Students will also be expected to demonstrate the following knowledge: - safe welding practices and procedures and use of personal protective equipment (PPE); - requirements to produce welds to quality of AS 1210-2010 Pressure vessels, AS 4041-2006 (R2016) Pressure piping, and American Society of Mechanical Engineers (ASME) or equivalent; - relevant standards or codes; - methods for preparing plate and pipe for code standard welding; - pre-welding and post-welding heating methods and requirements for plate and pipe welding to code standard, and; - requirements for maintaining weld records to code standard.

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

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