Lesson 10 - Reliability of Welding Filler Metals

© COPYRIGHT 2000 THE ESAB GROUP, INC. LESSON X 10.3.2.1 With the issuance of AWS A5.29-80, Specification for Low Alloy Steel Electrodes for Flux Cored Arc Welding, the user now need only furnish the electrode manufacturer’s certification that his product will meet the classification requirements of the latest edition of AWS A5.29. 10.3.2.2 The AWS Structural Welding Code (AWS D1.1-96) does not prescribe such design details as the location of parts or stress calculations to determine the size of load-carrying members in a structure. These details will be covered in a general Building Code that might state, “This structure is to conform to the American Institute of Steel Construction (AISC) Specification for the Design, Fabrication and Erection of Structural Steel For Buildings, and the AWS Structural Welding Code, AWS D1.1.” In this case, the AWS Structural Welding Code becomes a part of a general building code that may be adopted by a governing body. 10.3.2.3 The AWS publishes other specifications, standards and recommended practices covering the welding of automotive parts, construction equipment, machinery, ships, and water storage reservoirs. These, however, are less concerned with filler metal specification and selection than they are with welding techniques, procedures, and operator qualifica- tion. 10.4 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) The main objectives of the American Society For Testing & Materials are (1) to further the knowledge of many types of materials, and (2) establish standardized specifications of and standardized test methods for these materials. 10.4.0.1 The chemical and mechanical tests that apply to welding filler metals, as de- scribed by the AWS and other professional organizations, are often based on the ASTM standard testing methods. 10.5 AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) The ASME is instrumental in establishing many codes and specifications. The ASME Boiler & Pressure Vessel Code is of primary importance for welding materials and applications. This code is extensive, and is published in several different sections. Those parts that refer to welding filler metals and welding requirements are:

Lesson 1
The Basics of Arc Welding

Lesson 2
Common Electric
Arc Welding Processes

Lesson 3
Covered Electrodes for Welding
Mild Steels

Lesson 4
Covered Electrodes for Welding Low Alloy Steels

Lesson 5
Welding Filler Metals for Stainless Steels

Lesson 6
Carbon & Low Alloy
Steel Filler Metals -
GMAW,GTAW,SAW

Lesson 7
Flux Cored Arc Electrodes Carbon Low Alloy Steels

Lesson 8
Hardsurfacing Electrodes

Lesson 9
Estimating & Comparing Weld Metal Costs

Lesson 10
Reliability of Welding Filler Metals

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