AN INTERNA TIONAL C ODE

2007 ASME Boiler & Pressure Vessel Code

2008a Addenda July 1, 2008

AN INTERNA TIONAL C ODE

2007 ASME Boiler & Pressure Vessel Code

2008a Addenda July 1, 2008

II

Part C

Specifications for Welding Rods, Electrodes, and Filler Metals

MATERIALS

ASME Boiler and Pressure Vessel Committee

Subcommittee on Materials

U02CW8

Date of Issuance: July 1, 2008

This international code or standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.

ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.

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ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.

The footnotes in this document are part of this American National Standard.

The Specifications published and copyrighted by the American Welding Society are reproduced with the Society’s permission.

No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.

Library of Congress Catalog Card Number: 56-3934 Printed in the United States of America

The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990

Copyright © 2008 by

THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reserved

2007 ASME

BOILER AND PRESSURE VESSEL CODE

SECTIONS

I Rules for Construction of Power Boilers II Materials

Part A — Ferrous Material Specifications Part B — Nonferrous Material Specifications

Part C — Specifications for Welding Rods, Electrodes, and Filler Metals Part D — Properties (Customary)

Part D — Properties (Metric)

1. Rules for Construction of Nuclear Facility Components

   Subsection NCA — General Requirements for Division 1 and Division 2 Division 1

   Subsection NB — Class 1 Components Subsection NC — Class 2 Components Subsection ND — Class 3 Components Subsection NE — Class MC Components Subsection NF — Supports

   Subsection NG — Core Support Structures

   Subsection NH — Class 1 Components in Elevated Temperature Service Appendices

   Division 2 — Code for Concrete Containments

   Division 3 — Containments for Transportation and Storage of Spent Nuclear Fuel and High Level Radioactive Material and Waste

2. Rules for Construction of Heating Boilers V Nondestructive Examination

VI Recommended Rules for the Care and Operation of Heating Boilers VII Recommended Guidelines for the Care of Power Boilers

VIII Rules for Construction of Pressure Vessels Division 1

Division 2 — Alternative Rules

Division 3 — Alternative Rules for Construction of High Pressure Vessels IX Welding and Brazing Qualifications

1. Fiber-Reinforced Plastic Pressure Vessels

2. Rules for Inservice Inspection of Nuclear Power Plant Components XII Rules for Construction and Continued Service of Transport Tanks

   
   

   iii

   ADDENDA

   Colored-sheet Addenda, which include additions and revisions to individual Sections of the Code, are published annually and will be sent automatically to purchasers of the applicable Sections up to the publication of the 2010 Code. The 2007 Code is available only in the loose-leaf format; accordingly, the Addenda will be issued in the loose-leaf, replacement-page format.

   
   

   INTERPRETATIONS

   ASME issues written replies to inquiries concerning interpretation of technical aspects of the Code. The Inter- pretations for each individual Section will be published separately and will be included as part of the update service to that Section. Interpretations of Section III, Divisions 1 and 2, will be included with the update service to Subsec- tion NCA.

   Interpretations of the Code are distributed annually in July with the issuance of the edition and subse- quent addenda. Interpretations posted in January at www.cstools.asme.org/interpretations are included in the July distribution.

   
   

   CODE CASES

   The Boiler and Pressure Vessel Committee meets regu- larly to consider proposed additions and revisions to the Code and to formulate Cases to clarify the intent of existing requirements or provide, when the need is urgent, rules for materials or constructions not covered by existing Code rules. Those Cases that have been adopted will appear in the appropriate 2007 Code Cases book: “Boilers and Pressure Vessels” and “Nuclear Components.” Supple- ments will be sent automatically to the purchasers of the Code Cases books up to the publication of the 2010 Code.

   
   

   iv

   
   

   
   

   SUMMARY OF CHANGES

   Addenda to the 2007 Edition of the Code are issued in the form of replacement pages. Revisions, additions, or deletions are incorporated directly into the affected pages. It is advisable, however, that all replaced pages be retained for reference.

   Replace or insert the pages listed. Changes given below are identified on the pages by a margin note, A08, placed next to the affected area. Revisions to the 2007 Edition are indicated by 07. For the listing below, the Page references the affected area. A margin note, A08, placed next to the heading indicates Location. Revisions are listed under Change.

   The Record Numbers listed below are explained in more detail in “List of Changes in Record Number Order” following the Summary of Changes.

   
   

   Page xi–xxi	Location Roster	Change (Record Number) Updated to reflect 2008 Addenda
   xxiii–xxv	Officers of AWS Committee	Updated to reflect 2008 Addenda
   1, 7	SFA-5.01	Subtitle revised (07-1706)
   10.1–10.10	SFA-5.02/SFA-5.02M	Added (07-1712)
   51–58.1	SFA-5.2/SFA-5.2M	Revised in its entirety (07-1713)
   59, 66	SFA-5.3/SFA-5.3M	Subtitle revised (07-1706)
   75, 76	SFA-5.4/SFA-5.4M
   96	SFA-5.4/SFA-5.4M
   110–112	SFA-5.5/SFA-5.5M	(1) In Table 2, under Chromium-Molybdenum Steel

   1. In Table 1, Mo values for E308Mo-XX and E308LMo-XX corrected by errata (08-304)

   2. In Table 1, Ni values for E410NiMo-XX corrected by errata (08-304)

   1. Fig. A3 title corrected by errata (07-1966)

   2. Value at left of figure corrected by errata (07-1966)

   Electrodes, last column for UNS W50425, M50426, and W50428 corrected by errata (08-726)

   1. In Table 2, under Nickel-Molybdenum Steel Electrodes, last two columns for UNS W21118 corrected by errata (08-726)

   2. In Table 2, for all entries under General Low-Alloy Steel Electrodes, last column corrected by errata (08-726)

   3. In Table 2, last column corrected by errata for Weathering Steel Electrodes (08-726)

175–184.2 SFA-5.7/SFA-5.7M Revised in its entirety (07-1714)

187 SFA-5.8/SFA-5.8M In Table 1, Ni and Sn values transposed for BAg-24 by

errata (07-1966)

216 SFA-5.9/SFA-5.9M In Table 1, superscript (I) deleted from ER409Nb by errata (07-1966)

(c)

S50480 corrected by errata (08-304)

(2) In Table 1, under Chromium-Molybdenum Steel Electrodes and Rods, Si and Cr values for UNS Number S50482 corrected by errata (08-304)

(d)

LIST OF CHANGES IN RECORD NUMBER ORDER

Record Number Change

07-1703 SFA-5.34/SFA-5.34M added.

07-1704 SFA-5.23/SFA-5.23M revised.

07-1706 SFA-5.01: Revised to indicate AWS Reaffirmation (R1999). SFA-5.3: Revised to indicate AWS Reaffirmation (R2007). SFA-5.15: Revised to indicate AWS Reaffirmation (R2006). SFA-5.17: Revised to indicate AWS Reaffirmation (R2007). SFA-5.22: Revised to indicate AWS Reaffirmation (R2005). SFA-5.25: Revised to indicate AWS Reaffirmation (R2003). SFA-5.26: Revised to indicate AWS Reaffirmation (R2003). SFA-5.32: Revised to indicate AWS Reaffirmation (R2007).

07-1712 SFA-5.02/SFA-5.02M added.

07-1713 SFA-5.2/SFA-5.2M revised.

07-1714 SFA-5.7/SFA-5.7M revised.

07-1857 SFA-5.16/SFA-5.16M revised.

07-1966 Errata corrections.

08-304 Errata corrections.

08-726 Errata corrections.

(e)

INTENTIONALLY LEFT BLANK

(f)

CONTENTS

Foreword ............................................................................... vii

Statements of Policy .................................................................... ix

Personnel .............................................................................. xi

AWS Personnel xxiii

Submittal of Technical Inquiries xxvii

Guideline on Approval of New Material xxix

Preface xxxi

Summary of Changes xxxiii

List of Changes in BC Order xxxv

Specifications

SFA-5.01 Filler Metal Procurement Guidelines 1

SFA-5.1/SFA-5.1M Carbon Steel Electrodes for Shielded Metal Arc Welding 11

SFA-5.2 Carbon and Low Alloy Steel Rods for Oxyfuel Gas Welding 51

SFA-5.3/SFA-5.3M Aluminum and Aluminum-Alloy Electrodes for Shielded Metal Arc

Welding 59

SFA-5.4/SFA-5.4M Stainless Steel Electrodes for Shielded Metal Arc Welding 73

SFA-5.5/SFA-5.5M Low-Alloy Steel Electrodes for Shielded Metal Arc Welding 105

SFA-5.6 Covered Copper and Copper Alloy Arc Welding Electrodes 155

SFA-5.7 Copper and Copper Alloy Bare Welding Rods and Electrodes 175

SFA-5.8/SFA-5.8M Filler Metals for Brazing and Braze Welding 185

SFA-5.9/SFA-5.9M Bare Stainless Steel Welding Electrodes and Rods 213

SFA-5.10/SFA-5.10M Bare Aluminum and Aluminum-Alloy Welding Electrodes and Rods 237

SFA-5.11/SFA-5.11M Nickel and Nickel-Alloy Welding Electrodes for Shielded Metal Arc

Welding 263

SFA-5.12/SFA-5.12M Tungsten and Tungsten-Alloy Electrodes for Arc Welding and

Cutting 293

SFA-5.13 Surfacing Electrodes for Shielded Metal Arc Welding 305

SFA-5.14/SFA-5.14M Nickel and Nickel-Alloy Bare Welding Electrodes and Rods 325

SFA-5.15 Welding Electrodes and Rods for Cast Iron 345

SFA-5.16/SFA-5.16M Titanium and Titanium-Alloy Welding Electrodes and Rods 363

SFA-5.17/SFA-5.17M Carbon Steel Electrodes and Fluxes for Submerged Arc Welding 377

SFA-5.18/SFA-5.18M Carbon Steel Electrodes and Rods for Gas Shielded Arc Welding 403

SFA-5.20/SFA-5.20M Carbon Steel Electrodes for Flux Cored Arc Welding 427

SFA-5.21 Bare Electrodes and Rods for Surfacing 461

SFA-5.22 Stainless Steel Electrodes for Flux Cored Arc Welding and Stainless

Steel Flux Cored Rods for Gas Tungsten Arc Welding 485

SFA-5.23/SFA-5.23M Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding 521

SFA-5.24/SFA-5.24M Zirconium and Zirconium-Alloy Welding Electrodes and Rods 555

SFA-5.25/SFA-5.25M Carbon and Low-Alloy Steel Electrodes and Fluxes for Electroslag

Welding 565

SFA-5.26/SFA-5.26M Carbon and Low-Alloy Steel Electrodes for Electrogas Welding 589

SFA-5.28/SFA-5.28M Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding 613

SFA-5.29/SFA-5.29M Low-Alloy Steel Electrodes for Flux Cored Arc Welding 643

SFA-5.30 Consumable Inserts 681

v

SFA-5.31 Fluxes for Brazing and Braze Welding 699

SFA-5.32/SFA-5.32M Welding Shielding Gases 709

MANDATORY APPENDIX

Appendix I Standard Units for Use in Equations 723

vi

FOREWORD

The American Society of Mechanical Engineers set up a committee in 1911 for the purpose of formulating standard rules for the construction of steam boilers and other pres- sure vessels. This committee is now called the Boiler and Pressure Vessel Committee.

The Committee’s function is to establish rules of safety, relating only to pressure integrity, governing the construc- tion1 of boilers, pressure vessels, transport tanks and nuclear components, and inservice inspection for pressure integrity of nuclear components and transport tanks, and to interpret these rules when questions arise regarding their intent. This code does not address other safety issues relat- ing to the construction of boilers, pressure vessels, transport tanks and nuclear components, and the inservice inspection of nuclear components and transport tanks. The user of the Code should refer to other pertinent codes, standards, laws, regulations, or other relevant documents. With few exceptions, the rules do not, of practical necessity, reflect the likelihood and consequences of deterioration in service related to specific service fluids or external operating envi- ronments. Recognizing this, the Committee has approved a wide variety of construction rules in this Section to allow the user or his designee to select those which will provide a pressure vessel having a margin for deterioration in ser- vice so as to give a reasonably long, safe period of use- fulness. Accordingly, it is not intended that this Section be used as a design handbook; rather, engineering judgment must be employed in the selection of those sets of Code rules suitable to any specific service or need.

This Code contains mandatory requirements, specific prohibitions, and nonmandatory guidance for construction activities. The Code does not address all aspects of these activities and those aspects which are not specifically addressed should not be considered prohibited. The Code is not a handbook and cannot replace education, experi- ence, and the use of engineering judgment. The phrase engineering judgment refers to technical judgments made by knowledgeable designers experienced in the application of the Code. Engineering judgments must be consistent with Code philosophy and such judgments must never be used to overrule mandatory requirements or specific prohibitions of the Code.

1 Construction, as used in this Foreword, is an all-inclusive term com- prising materials, design, fabrication, examination, inspection, testing, certification, and pressure relief.

The Committee recognizes that tools and techniques used for design and analysis change as technology prog- resses and expects engineers to use good judgment in the application of these tools. The designer is responsible for complying with Code rules and demonstrating compliance with Code equations when such equations are mandatory. The Code neither requires nor prohibits the use of comput- ers for the design or analysis of components constructed to the requirements of the Code. However, designers and engineers using computer programs for design or analysis are cautioned that they are responsible for all technical assumptions inherent in the programs they use and they are responsible for the application of these programs to their design.

The Code does not fully address tolerances. When dimensions, sizes, or other parameters are not specified with tolerances, the values of these parameters are consid- ered nominal and allowable tolerances or local variances may be considered acceptable when based on engineering judgment and standard practices as determined by the designer.

The Boiler and Pressure Vessel Committee deals with the care and inspection of boilers and pressure vessels in service only to the extent of providing suggested rules of good practice as an aid to owners and their insp