Lesson 10 - Reliability of Welding Filler Metals

© COPYRIGHT 2000 THE ESAB GROUP, INC. LESSON X Section I. Power Boilers Section II. Material Specifications Section III. Nuclear Vessels Section IV. Low Pressure Boilers Section VIII. Unfired Pressure Boilers 10.5.0.1 Section II of the code, in which welding filler metals are specified, states that the ASME has adopted the AWS Filler Metal Specifications verbatim (word for word). How- ever, they do have their own specification designation. For example, AMSE SFA 5.5-96 Specification for Low Alloy Steel Covered Arc Welding Electrodes is the same as AWS A5.5-96. 10.5.0.2 Under Section III of the code, the ASME issues a Quality System Certificate to manufacturers of materials (including welding electrodes and wire) to be used under the code. This certificate is issued only after an ASME plant audit and the manufacturer’s entire quality assurance program is approved. Its issuance allows the manufacturer’s products to be used in boiler and pressure vessel work, as well as on nuclear applications as specified in the code. Details of the Quality System Certificate will be covered under the Quality Assurance Section of this lesson. 10.6 SHIP CLASSIFICATION SOCIETIES 10.6.1 The American Bureau of Shipping (ABS) - The ABS is a non-profit, interna- tional ship classification society. It certifies the structural integrity and mechanical fitness of merchant ships, offshore drilling rigs, and other marine structures. 10.6.1.1 Annually, the Bureau publishes a listing entitled “Approved Welding Electrodes, Wire-Flux and Wire-Gas Combinations.” The approvals of the filler metals are based upon tests conducted to standards established by the Bureau or by other recognized agencies. As requested by the manufacturer, filler metals may be approved to an AWS Filler Metal Specification, and so listed, or approved to an ABS Grade as shown in Figure 1. In either case, the approval testing must be made in the manufacturer’s facility in the presence of an ABS representative. The extent of testing will vary, depending on the type of weld for which the product is being qualified (fillet or butt), whether the filler material is being initially tested as a new product, being tested annually, or whether the product is being upgraded at the manufacturer’s request. 10.6.1.2 At the time of annual testing, the manufacturing facilities and quality control procedures are subject to inspection also.

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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