Module Purpose:

 The purpose of this module is to enable trainees to demonstrate knowledge of engineering metals, properties and standards. Trainees will be able to identify engineering metals, their characteristics, applications and common metal tests used in engineering; demonstrate knowledge of steel section and standards

Purpose

 This unit standard is intended for those who Demonstrate knowledge of engineering metals, properties and standards. People credited with this unit standards are able to identify engineering metals, their characteristics, applications and common metal tests used in engineering; demonstrate knowledge of steel section and standards. This unit standard is intended for those who works as Welders and Boilermakers

Range

 Metal used in engineering include ferrous metals, alloys and non- ferrous. The difference between ferrous and non-ferrous metals and alloys must be explained in terms of color codes, strength, density, corrosion resistance, electrical conductivity and magnetic properties Characteristics include yield stress, proof stress, ultimate tensile stress, % elongation, impact strength, toughness, fatigue strength, wear resistance, heat resistance, hardness, bend Methods of processing engineering metal include machining, casting, rolling, forging, extrusion, drawing and spinning. Methods of manufacturing include hot working, cold working and thermal processes. metal tests must include tensile, hardness, shear, impact, spark and bend tests Heat treatment processes must include homogenizing, annealing, normalizing, stress relieving, hardening, tempering and case hardening. Changes in metal properties include a variety of changes in state, e.g. strength, hardness, ductility, magnetism, dimensions and color.

This unit standard is intended for those who make templates and jigs as part of metal fabrication operations. People credited with this unit standards are able to identify and select tools and material; mark off templates and jigs; form templates and jigs.

This unit standard specifies the outcomes required to apply numeracy skills in a workplace environment. It includes applying basic knowledge of number and statistics, measuring materials and objects and performing basic geometric functions.

This unit standard is intended for people requiring basic numeracy skills to apply in a work environment.