AWS D3.9/D3.9M:2019

An American National Standard

Specification for the Classification of Weld-Through Paint Primers

AWS D3.9/D3.9M:2019

An American National Standard

Approved by the American National Standards Institute

May 14, 2019

Specification for the Classification of Weld-Through Paint Primers

2nd Edition

Supersedes AWS D3.9:2010

Prepared by the American Welding Society (AWS) Committee on Welding in Marine Construction

Under the Direction of the AWS Technical Activities Committee

Approved by the AWS Board of Directors

Abstract

This specification prescribes the requirements for the classification of weld-through paint primers. The classification is based on paint film thickness and welding procedure. Manufacturers may classify their products to different film thick- nesses or welding procedures if they provide the details of their tests.

AWS D3.9/D3.9M:2019

AWS D3.9/D3.9M:2019

ISBN Print: 978-1-64322-060-4

ISBN PDF: 978-1-64322-061-1

© 2019 by American Welding Society

All rights reserved Printed in the United States of America

Photocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in any form, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner.

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AWS D3.9/D3.9M:2019

Statement on the Use of American Welding Society Standards

All standards (codes, specifications, recommended practices, methods, classifications, and guides) of the American Welding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of the American National Standards Institute (ANSI). When AWS American National Standards are either incorporated in, or made part of, documents that are included in federal or state laws and regulations, or the regulations of other governmen- tal bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWS standards must be approved by the governmental body having statutory jurisdiction before they can become a part of those laws and regulations. In all cases, these standards carry the full legal authority of the contract or other document that invokes the AWS standards. Where this contractual relationship exists, changes in or deviations from requirements of an AWS stand- ard must be by agreement between the contracting parties.

AWS American National Standards are developed through a consensus standards development process that brings together volunteers representing varied viewpoints and interests to achieve consensus. While AWS administers the proc- ess and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in its standards.

AWS disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this standard. AWS also makes no guarantee or warranty as to the accuracy or completeness of any information pub- lished herein.

In issuing and making this standard available, AWS is neither undertaking to render professional or other services for or on behalf of any person or entity, nor is AWS undertaking to perform any duty owed by any person or entity to someone else. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. It is assumed that the use of this standard and its provisions is entrusted to appropriately qualified and competent personnel.

This standard may be superseded by new editions. This standard may also be corrected through publication of amend- ments or errata, or supplemented by publication of addenda. Information on the latest editions of AWS standards includ- ing amendments, errata, and addenda is posted on the AWS web page (www.aws.org). Users should ensure that they have the latest edition, amendments, errata, and addenda.

Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard accept any and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement of any patent or product trade name resulting from the use of this standard.

AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.

Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request, in writing, to the appropriate technical committee. Such requests should be addressed to the American Welding Society, Attention: Managing Director, Standards Development, 8669 NW 36 St, # 130, Miami, FL 33166 (see Annex B). With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be rendered. These opinions are offered solely as a convenience to users of this standard, and they do not constitute professional advice. Such opinions represent only the personal opinions of the particular individuals giving them. These individuals do not speak on behalf of AWS, nor do these oral opinions constitute official or unofficial opinions or interpretations of AWS. In addi- tion, oral opinions are informal and should not be used as a substitute for an official interpretation.

This standard is subject to revision at any time by the AWS D3 Committee on Welding in Marine Construction. It must be reviewed every five years, and if not revised, it must be either reaffirmed or withdrawn. Comments (recommendations, additions, or deletions) and any pertinent data that may be of use in improving this standard are requested and should be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS D3 Committee on Welding in Marine Construction and the author of the comments will be informed of the Committee’s response to the comments. Guests are invited to attend all meetings of the AWS D3 Committee on Welding in Marine Construction to express their comments verbally. Procedures for appeal of an adverse decision concerning all such comments are pro- vided in the Rules of Operation of the Technical Activities Committee. A copy of these Rules can be obtained from the American Welding Society, 8669 NW 36 St, # 130, Miami, FL 33166.

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Personnel

AWS D3 Committee on Welding in Marine Construction

K. L. Johnson, Chair Vigor Shipyards Inc

M. J. Sullivan, Vice Chair NASSCO-National Steel & Shipbuilding

J. Douglass, Secretary American Welding Society

T. Anderson ITW – Miller Electric Mfg. Co.

G. M. Cain Oxylance Inc

C. B. Champney Nelson Stud Welding

M. P. Cridland American Bureau of Shipping

D. E. Drake ExxonMobil Pipeline

P. M. Formento ESAB Welding & Cutting Products

B. H. Halverson H & M Consulting LLC

M. H. Huelskamp TQM Enterprises

L. G. Kvidahl Ingalls Shipbuilding

H. W. Lehman Bechtel Construction

J. Liu Erin Energy

M. J. Ludwig Welding Consulting Services LLC

J. M. Mumaw Nelson Stud Welding

T. C. Myers Wectec

S. E. Pollard Machinists Inc

M. F. Sinfield Naval Surface Warfare Center

Advisors to the AWS D3 Committee on Welding in Marine Construction

G. P. Chandler NASSCO-Norfolk

D. Cottle CCS Solutions

A. W. Johnson A W Johnson and Associates

L. D. Parkinson Canadian Coast Guard

A. T. Sheppard The DuRoss Group, Inc.

P. S. Stone ESAB Welding & Cutting Products

T. Ulinski Bohler Welding Group

1. R. Viney Rhoads Industries

   
   

   AWS D3E Standing Task Group on Weld Through Paint Primers

2. G. Kvidahl, Chair Ingalls Shipbuilding

J. E. Kelly, Vice Chair International Paint Inc (Akzo Nobel)

E. Abrams, Secretary American Welding Society

K. L Johnson Vigor Shipyards, Inc

M. J. Ludwig Fronius USA LLC

J. E. McCarthy Ameron International

D. R. Miller ABS

T. A. Neale Blastech Mobile LLC

S. Pendry The Sherwin-Williams Co

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AWS D3.9/D3.9M:2019

AWS D3.9/D3.9M:2019

M. J. Sullivan NASSCO-National Steel & Shipbuilding

E. Wolf Copperweld

Advisors to the AWS D3E Standing Task Group on Weld Through Paint Primers

D. Y. Ku Consultant

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C. L. Null Consultant

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AWS D3.9/D3.9M:2019

Foreword

This Foreword is not part of this standard but is included for information purposes only.

Industries, notably shipbuilding firms, have introduced weld-through primers in plate and shape fabrication lines in order to increase productivity. The ability to weld directly through these coatings permits reductions in construction costs and improvements in schedule times.

An obstacle to the immediate introduction of this technology into the welding operations has been the inconsistent qual- ity of welds due to interaction with the primed base metal. By using a standard test procedure to classify weld-through primers, potential users will be able to determine the base line levels of painting and welding required for their applica- tions and to specify these requirements to their coating supplier.

In 1996, the AWS D3 Committee on Welding in Marine Construction established a Subcommittee on Weld-Through Paint Primers and requested that they develop a standard to classify weld-through paint primers.

The first edition of this document was published in 2010. This second edition makes use of both the U.S Customary Units and International System of Units (SI) and contains updated information regarding safety precautions. Underlined text or a vertical line in the margin denotes a technical change from the previous edition.

Comments and suggestions for the improvement of this standard are welcome. They should be sent to the Secretary, AWS D3 Committee on Welding in Marine Construction, American Welding Society, 8669 NW 36th St, #130, Miami, FL 33166.

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Table of Contents

Page No.

Personnel v

Foreword vii

List of Tables x

List of Figures x

1. General Requirements 1

   1. Scope 1

   2. Units of Measurement 1

   3. Safety 1

2. Normative References 2

3. Terms and Definitions 2

4. Test Assembly Preparation 3

   1. Base Material 3

   2. Surfaces 3

   3. Spray Paint 3

   4. Curing Primer Coated Plates 3

   5. Steel Shims 3

   6. Preparing for Assembly 4

   7. Fillet Welds 4

   8. Remove First Side Fillet Weld 4

   9. Fillet Weld Break Test 4

   10. Examination 4

5. Inspection 4

   1. Size Inspection 4

   2. Visual Examination 4

   3. Acceptance Criteria 4

6. Classification 4

   1. General 4

   2. Classification Conformance 4

   3. Other Classification 5

7. Test Report 5

   1. General 5

8. Certification 6

   1. Manufacturer Certification 6

   2. Re-certification 6

   3. Testing Requirements 6

Annex A (Normative)—Welding Procedures 7

Annex B (Informative)—Requesting an Official Interpretation on an AWS Standard 13

List of Documents on Welding in Marine Construction 15

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List of Tables

Table Page No.

1 Primer Thickness Classification 5

List of Figures

Figure Page No.

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1 Test Assembly for Classification of Weld-Through Paint Primers 3

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AWS D3.9/D3.9M:2019

Specification for the Classification of Weld-Through Paint Primers

1. General Requirements

   1. Scope. This standard specifies the requirements for classification of weld-through paint primers only. The paint primers are classified based on the maximum coating thickness for successful welding and the welding procedure used during the classification test. This standard provides a system for paint manufacturers to classify the weldability features of weld-through paint primers. This standard is limited to weld-through paint primers only and does not include galvanized or other types of protective coatings.

   2. Units of Measurement. This standard makes use of both the U.S Customary Units and International System of Units (SI). The latter are shown within brackets [ ] or in appropriate columns in tables and figures. The measurements may not be exact equivalents; therefore, each system must be used independently.

   3. Safety. Safety and health issues and concerns are beyond the scope of this standard; some safety and health information is provided, but such issues are not fully addressed herein.

      Safety and health information is available from the following sources: American Welding Society:

      1. ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes

      2. AWS Safety and Health Fact Sheets

      3. Other safety and health information on the AWS website Society for Protective Coatings:

(1) SSPC-Guide 17, Guide to Developing a Corporate Safety Program for Industrial Painting and Coating Contractors

Material or Equipment Manufacturers:

1. Safety Data Sheets supplied by materials manufacturers

2. Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies

US Department of Labor Regulations:

1. CFR-29, Part 1915.53, Welding, cutting and heating in way of preservative coatings

2. CFR-29, Part 1926.354, Welding, cutting, and heating in way of preservative coatings

Work performed in accordance with this standard may involve the use of materials that have been deemed hazardous, and may involve operations or equipment that may cause injury or death. This standard does not purport to address all safety and health risks that may be encountered. The user of this standard should establish an appropriate safety program to address such risks as well as to meet applicable regulatory requirements. ANSI Z49.1 should be considered when devel- oping the safety program.

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