AWS C4.5M:2012

An American National Standard

Uniform Designation System for Oxyfuel Nozzles

AWS C4.5M:2012

An American National Standard

Approved by the American National Standards Institute

June 5, 2012

Uniform Designation System

for Oxyfuel Nozzles

3rd Edition

Supersedes AWS C4.5M:2006

Prepared by the American Welding Society (AWS) C4 Committee on Oxyfuel Gas Welding and Cutting

Under the Direction of the AWS Technical Activities Committee

Approved by the AWS Board of Directors

Abstract

This document presents recommendations to oxyfuel welding, cutting, and heating/brazing torch nozzle manufacturers regarding the identification markings to be permanently applied to the torch nozzle to identify its intended application. The identification will provide information to improve the safe operation and application of nozzles by torch operators. This standard makes use of the International System of Units (SI).

AWS C4.5M:2012

International Standard Book Number: 978-0-87171-819-8

American Welding Society 8669 Doral Blvd., Doral, FL 33166

© 2012 by American Welding Society

All rights reserved Printed in the United States of America

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AWS C4.5M:2012

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 govern- mental 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 standard 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 the AWS administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evalu- ate, 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 published 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 the issuance of new editions. This standard may also be corrected through publication of amendments or errata. It may also be supplemented by publication of addenda. Information on the latest editions of AWS standards including amendments, errata, and addenda are 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.

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

On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered, are posted on the AWS web page (www.aws.org).

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, Technical Services Division, 8669 Doral Blvd., Doral, FL 33166 (see Annex A). 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 addition, 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 C4 Committee on Oxyfuel Gas Welding and Cutting. 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 required and should be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS C4 Committee on Oxyfuel Gas Welding and Cutting 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 C4 Committee on Oxyfuel Gas Welding and Cutting to express their comments verbally. Procedures for appeal of an adverse decision concerning all such comments are provided in the Rules of Operation of the Technical Activities Committee. A copy of these Rules can be obtained from the American Welding Society, 8669 Doral Blvd., Doral, FL 33166.

AWS C4.5M:2012

Personnel

AWS C4 Committee on Oxyfuel Gas Welding and Cutting

M. J. Hogan, Chair Harris Products Group, A Lincoln Electric Company

1. B. Overvaag, 1st Vice Chair Smith Equipment Company, Division of ITW Company

   1. S. Werner, 2nd Vice Chair Breakthrough Business Solutions

   2. H. Abrams, Secretary American Welding Society

J. G. Dawson, Jr. Consultant

J. F. Henderson Victor Technologies, Incorporated

L. L. Liston, Jr. Consultant

C. R. McGowan McGowan Technical Services

J. C. Papritan The Ohio State University

A. T. Sheppard The DuRoss Group

Advisors to the AWS C4 Committee on Oxyfuel Gas Welding and Cutting

J. D. Compton JD & Associates

D. G. Howden Consultant

J. D. Karow American General Corporation

AWS C4.5M:2012

Foreword

This foreword is not part of AWS C4.5M:2012, Uniform Designation System for Oxyfuel Nozzles, but is included for informational purposes only.

By updating this document, the members of the C4 Oxyfuel Gas Welding and Cutting Subcommittee of the American Welding Society have worked to strengthen the identification method for torch nozzles which will provide basic informa- tion regarding the intended application for which the nozzle was designed. The recommendations in this document are not intended to restrict innovation in future design improvements of torch nozzles, however we encourage manufacturers to comply with the intent of this document to improve the safe operating environment of oxyfuel gas welding, cutting, and heating/brazing personnel.

Comments and suggestions for the improvement of this standard are welcome. They should be sent to the Secretary, AWS C4 Committee on Oxyfuel Gas Welding and Cutting, American Welding Society, 8669 Doral Blvd., Doral, FL 33166.

AWS C4.5M:2012

Table of Contents

Page No.

Personnel v

Foreword vii

List of Tables x

1. Scope and Applicability 1

   1. Scope 1

   2. Standard Units of Measurement 1

   3. Safety 1

2. Normative References 2

3. Terms and Definitions 2

4. Cutting Nozzles 2

   1. Marking 2

   2. Safety and Health Requirements 3

5. Welding Nozzles 3

   1. Marking 3

   2. Safety and Health Requirements 3

6. Heating/Brazing Nozzles 3

   1. Marking 3

   2. Safety and Health Requirements 4

Annex A (Informative)—Guidelines for the Preparation of Technical Inquiries 5

List of AWS Documents on Oxyfuel Gas Welding and Cutting 7

AWS C4.5M:2012

List of Tables

Table Page No.

1 Designation and Abbreviations of the Gases 2

AWS C4.5M:2012

Uniform Designation System for Oxyfuel Nozzles

1. Scope and Applicability

   1. Scope. The publication provides a system for uniform identification of cutting, welding, and heating/brazing nozzles. A common information base has been established that the operator can rely on to identify nozzle performance from one manufacturer to another. The overall intent of this system is to provide manufacturers a common identification system to be marked on nozzles, which will result in the safe operation of oxyfuel nozzles, i.e., operators will know they are using the correct nozzle for the job being performed. In addition to a system of identifying nozzles, the publication also requires that manufacturers make other operating information and parameters available in such forms as are suitable for the operator.

      Application of the system of identification in this publication is voluntary, however if a manufacturer chooses to employ it or it is contractually required by a purchaser, then it will be necessary to comply with all the requirements of the publication.

      In the oxyfuel welding and cutting industry, every equipment manufacturer has its own system for designating the size of oxyfuel nozzles for cutting, welding, and heating/brazing. These systems are based on a variety of different nozzle features and in many cases are completely arbitrary. In any case, it is currently impossible to identify a nozzle by model number for a given manufacturer and cross reference it to a different manufacturer to obtain like performance and size, i.e., there is no commonality among manufacturers to identify like nozzles for performance and use. The intent of this publication is to provide a system for uniform identification of cutting, welding, and heating/brazing nozzles. This publication describes in detail the information that the equipment manufacturers should permanently mark on their oxyfuel cutting, welding, and heating/brazing nozzles.

   2. Standard Units of Measurement. This standard makes sole use of the International System of Units (SI).

   3. Safety. Safety issues and concerns are addressed in this standard, although health issues and concerns are beyond the scope of this standard. 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 Material or Equipment Manufacturers:

1. Material Safety Data Sheets supplied by materials manufacturers

2. Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies

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 developing the safety program.