The Shielded Metal Arc Welding (SMAW) NC II Qualification consists of competencies that a person must achieve to weld carbon steel plate and pipe components as specified by layout, blueprints, diagrams, work order, welding procedure or oral instructions using shielded metal arc welding equipment.
This Qualification conforms with American Welding Society (AWS) D 1.1 Structural Welding Code; American Society of Mechanical Engineers (ASME) IX Boiler and Pressure Vessel Code; American Petroleum Institute (API) 1104 Code for Gas and Oil Pipeline Facilities; and International Standards Organization (ISO) 96061 Qualification of Welders for Steel.
TRAINEE ENTRY REQUIREMENTS
Trainees or students wishing to gain entry into this course should possess the following requirements:
completed training in SMAW NC I or a holder of SMAW NC I
can communicate both oral and written physically and mentally fit can perform basic mathematical computation
To pass the assessment one must pass the ff. Core Competency:
Weld Carbon Steel Plates and Pipes Using SMAW
1. Perform root pass
1.1 Root pass is performed in accordance with WPS and/or client specifications.
1.2 Task is performed in accordance with company or industry requirement and safety procedure.
1.3 Weld is visually checked for defects and repaired, as required
1.4 Weld is visually acceptable in accordance with applicable codes and standards
2. Clean root pass
2.1 Root pass is cleaned and free from defects and discontinuities
2.2 Task is performed in accordance with approved WPS
3. Weld subsequent/ filling passes
3.1 Subsequent/ filling passes is performed in accordance with approved WPS
3.2 Weld is visually checked for defects and repaired, as required
3.3 Weld is visually acceptable in accordance with applicable codes and standards
4. Perform capping
4.1 Capping is performed in accordance with WPS and/or client specifications
4.2 Weld is visually checked for defects and repaired, as required
4.3 Weld is visually acceptable in accordance with applicable codes and standards
Assessment requires evidence that the candidate welded carbon steel pipes in 2G and 5G and/or 6G positions to acceptable standard following the approved WPS
DEFINITION OF TERMS
1) base metal – the metal that is to be worked or welded
2) weld bead – a deposit of filler metal from a single welding pass
3) weld defect– an irregularity that spoils the weld appearance or impairs the effectiveness of the weld or weldment by causing weakness or failure
4) weld line – the junction of weld metal and the base metal, or the junction of base metal parts when filler metal is not used
5) weldment – an assembly or structure whose component parts are joined by welding
6) welding – joining two metals by applying heat to melt and fuse them, with or without filler metal
7) welding electrode – the current-carrying rod used to strike an arc between rod and metal
8) welding rod – filler metal in the form of a rod or heavy wire 9) welding torch –a gas mixing and burning tool for the welding of meta
A person who has achieved this Qualification is competent to be: - SMAW Welder
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SMAW NCII reviewer
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