1、UniformDesignationSystem forOxyfuel NozzlesAWS C4.5M:2012An American National StandardAWS C4.5M:2012An American National StandardApproved by theAmerican National Standards InstituteJune 5, 2012Uniform Designation Systemfor Oxyfuel Nozzles3rd EditionSupersedes AWS C4.5M:2006Prepared by theAmerican We
2、lding Society (AWS) C4 Committee on Oxyfuel Gas Welding and CuttingUnder the Direction of theAWS Technical Activities CommitteeApproved by theAWS Board of DirectorsAbstractThis document presents recommendations to oxyfuel welding, cutting, and heating/brazing torch nozzle manufacturers regardingthe
3、identification markings to be permanently applied to the torch nozzle to identify its intended application. The identificationwill provide information to improve the safe operation and application of nozzles by torch operators. This standard makes use ofthe International System of Units (SI).iiAWS C
4、4.5M:2012International Standard Book Number: 978-0-87171-819-8American Welding Society8669 Doral Blvd., Doral, FL 33166 2012 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaPhotocopy Rights. No portion of this standard may be reproduced, stored in a retrieval sys
5、tem, or transmitted in anyform, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the internal, personal, oreducational classroom use on
6、ly of specific clients is granted by the American Welding Society provided that the appropriatefee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.iiiAWS C4.5M:2012Statement on the Use of American Welding Society StandardsAll standards
7、 (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute (ANSI). When AWS American National Standards
8、are either incorporated in, ormade 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 AWSstandards must be approved by the
9、 governmental body having statutory jurisdiction before they can become a part ofthose laws and regulations. In all cases, these standards carry the full legal authority of the contract or other documentthat invokes the AWS standards. Where this contractual relationship exists, changes in or deviati
10、ons from requirementsof an AWS standard must be by agreement between the contracting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve consensus. While the AWS
11、 administers theprocess 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
12、 property, or other damages of any nature whatsoever, whetherspecial, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or relianceon this standard. AWS also makes no guarantee or warranty as to the accuracy or completeness of any informationpub
13、lished herein.In issuing and making this standard available, AWS is neither undertaking to render professional or other services for oron behalf of any person or entity, nor is AWS undertaking to perform any duty owed by any person or entity to someoneelse. Anyone using these documents should rely o
14、n his or her own independent judgment or, as appropriate, seek theadvice of a competent professional in determining the exercise of reasonable care in any given circumstances. It isassumed that the use of this standard and its provisions is entrusted to appropriately qualified and competent personne
15、l.This standard may be superseded by the issuance of new editions. This standard may also be corrected through publicationof amendments or errata. It may also be supplemented by publication of addenda. Information on the latest editions ofAWS standards including amendments, errata, and addenda are p
16、osted on the AWS web page (www.aws.org). Users shouldensure 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 acceptany and all liabilities for infringement of any patent
17、 or trade name items. AWS disclaims liability for the infringement ofany 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 prin
18、ted incorrectly, constituting errata. Such errata, when discovered, are postedon 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 s
19、hould be addressed to the American Welding Society,Attention: Managing Director, Technical Services Division, 8669 Doral Blvd., Doral, FL 33166 (see Annex A). Withregard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be rendered. Theseopinions are offered so
20、lely 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 notspeak on behalf of AWS, nor do these oral opinions constitute official or unofficial o
21、pinions 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 mustbe reviewed every five years, and if not
22、 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 shouldbe addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS C4 Committ
23、ee onOxyfuel Gas Welding and Cutting and the author of the comments will be informed of the Committees response to thecomments. Guests are invited to attend all meetings of the AWS C4 Committee on Oxyfuel Gas Welding and Cutting toexpress their comments verbally. Procedures for appeal of an adverse
24、decision concerning all such comments are providedin the Rules of Operation of the Technical Activities Committee. A copy of these Rules can be obtained from the AmericanWelding Society, 8669 Doral Blvd., Doral, FL 33166.This page is intentionally blank.ivAWS C4.5M:2012vAWS C4.5M:2012PersonnelAWS C4
25、 Committee on Oxyfuel Gas Welding and CuttingM. J. Hogan, Chair Harris Products Group, A Lincoln Electric CompanyD. B. Overvaag, 1st Vice Chair Smith Equipment Company, Division of ITW CompanyD. S. Werner, 2nd Vice Chair Breakthrough Business SolutionsE. H. Abrams, Secretary American Welding Society
26、J. G. Dawson, Jr. ConsultantJ. F. Henderson Victor Technologies, IncorporatedL. L. Liston, Jr. ConsultantC. R. McGowan McGowan Technical ServicesJ. C. Papritan The Ohio State UniversityA. T. Sheppard The DuRoss GroupAdvisors to the AWS C4 Committee on Oxyfuel Gas Welding and CuttingJ. D. Compton JD
27、and(2) AWS A3.0M/A3.0, Standard Welding Terms and Definitions, Including Terms for Adhesive Bonding, Brazing,Soldering, Thermal Cutting, and Thermal Spraying.3. Terms and DefinitionsWelding and cutting terms are defined in AWS A3.0M/A3.0, Standard Welding Terms and Definitions, Including Termsfor Ad
28、hesive Bonding, Brazing, Soldering, Thermal Cutting, and Thermal Spraying.4. Cutting NozzlesThis clause applies to all oxyfuel cutting nozzles used in hand held cutting torches, cutting attachments, and machinetorches.4.1 Marking. The marking shall be legible and durable. All nozzles shall be marked
29、 with the name, registered trade-mark, or identifying mark of the manufacturer, with the symbol identifying the fuel gas, the nozzle cutting capacity, andwith a code or part number to permit easy reference to the manufacturers operating data.4.1.1 Fuel Gas Designation. The following gas designations
30、 shall be used to identify the gas for which the nozzle isdesigned (see Table 1).For nozzles that are capable of being used with more than one fuel gas, the abbreviation for the applicable gases will bemarked. Example: PY or AH.4.1.2 Cutting Capacity. The nozzle shall be marked with the maximum cutt
31、ing capacity in millimeters. This ratingshould be the maximum material thickness that the nozzle will effectively cut under normal conditions, i.e., low carbonsteel, and at a speed that is realistic to the metal cutting process. This rating is the responsibility of the manufacturer toestablish. Exam
32、ple: 6 mm.1ANSI Z49.1 and AWS standards are published by the American Welding Society, 8669 Doral Blvd., Doral, FL 33166.Table 1Designation and Abbreviations of the GasesDesignations AbbreviationsAcetyleneNatural Gas/MethanePropane, Propane-Based FuelsHydrogenMPS (MethylacetylenePropadiene Mixtures)
33、PropyleneAMPHYLAWS C4.5M:201234.1.3 Marking Configuration. The style and location of the markings are left to the manufacturer to establish. Themarkings must include the manufacturers identification and model number (part number) or code, e.g., CT 12-0,followed by the fuel gas identification and the
34、n the maximum cutting capacity of the nozzle, e.g., A 6 mm. Example:Acme Mfg. CT 12-0 A 6 mm. If necessary, more than one line may be used to mark the information on the nozzle.4.2 Safety and Health Requirements. The manufacturer shall make available the detailed instructions for the propersettings
35、of the cutting nozzles. This information must include the recommended pressure settings in kilopascals (kPa)and the flow rates in liters per minute (L/min) for the oxygen and fuel gas required. These settings should give the oper-ator acceptable performance under normal operating conditions.The manu
36、facturer shall make the safety information available for the proper use and operation of the cutting nozzle andrelated equipment used for oxyfuel cutting. This information should be in the form of instruction literature or imprintedon the product packaging.5. Welding NozzlesThis clause applies to al
37、l oxyfuel welding nozzles used with a welding torch for the purpose of welding metals.5.1 Marking. The marking shall be legible and durable. All nozzles or mixing sections shall be marked with the name,registered trademark, or identifying mark of the manufacturer, with the symbol identifying the fue
38、l gas, the weldingnozzle capacity, and with a code to permit easy reference to the manufacturers operating data.5.1.1 Fuel Gas Designation. The fuel gas shall be imprinted per the abbreviations in Table 1. When a nozzle may beused with multiple fuel gases, the abbreviations for all applicable gases
39、shall be marked on the nozzle. Example: AHor PY.5.1.2 Welding Capacity. The nozzle or mixing section shall be marked with the maximum welding capacity in milli-meters. This rating should be the maximum material thickness that the nozzle will effectively weld under practicalconditions. This rating is
40、 the responsibility of the manufacturer to establish Example: 6 mm.5.1.3 Marking Configuration. The style and location of the marking is left to the manufacturer to establish. Themarking must include the manufacturers identification and model number (part number) or code, e.g., WT208, followedby the
41、 fuel gas identification and then the maximum welding capacity of the nozzle, e.g. A 6 mm. Example: Acme Mfg.WT 208 A 6 mm.The mixing section that is used with the welding nozzle shall be marked with the manufacturers identification, modelnumber (part number) or code, and the fuel gas for which it i
42、s designed. It may be necessary to use more than one line tomark this information on the nozzle and/or mixing section.5.2 Safety and Health Requirements. The manufacturer shall make available detailed instructions for the proper set-tings of the welding nozzles. This information must include the rec
43、ommended pressure settings in kilopascals (kPa) andthe flow rates in liters per minute (L/min) for the oxygen and fuel gas required. These settings should give the operatoracceptable performance under normal operating conditions.The manufacturer shall make the safety information available for the pr
44、oper use and operation of the welding nozzle andrelated equipment used for oxyfuel welding. This information should be in the form of instruction literature or imprintedon the product carton.6. Heating/Brazing NozzlesThis clause applies to all oxyfuel heating and brazing nozzles used with welding to
45、rches for the purpose of heating andbrazing metals.6.1 Marking. The marking shall be legible and durable. All nozzles or mixing sections shall be marked with the name,registered trademark or identifying mark of the manufacturer, with the symbol identifying the fuel gas, the liters perminute (L/min)
46、of gas required, and with a code or part number to permit easy reference to the manufacturers operatingdata.AWS C4.5M:201246.1.1 Fuel Gas Designation. The fuel gas will be imprinted per the abbreviations in Table 1. When a nozzle may beused with multiple fuel gases, the abbreviations for all applica
47、ble gases shall be marked on the nozzle. Example: AH orPY.6.1.2 Heating Capacity. The nozzle shall be marked with the nominal design flow rate in liters per minute (L/min)for the fuel gas that is required for the nozzle to perform to its designed capabilities. This rating will be established by them
48、anufacturer at the recommended settings for the given nozzle under normal operating conditions. Example: 236 L/min.6.1.3 Marking Configuration. The style and location of the marking is left to the manufacturer to establish. Themarking must include the manufacturers identification and model number (p
49、art number) or code, e.g., HT610, followedby the fuel gas identification and then the maximum fuel gas consumption rate, e.g., A 42 L/min. Example: Acme Mfg.HT610 A 42 L/min.The mixing section that is used with the heating or brazing nozzle shall be marked with the manufacturers identification,model number (part number) or code, and the fuel gas for which it is designed. In the case where the nozzle is remov-able, the marking must be applied to the removable portion of the nozzle, i.e., the head of the heating/brazing nozzle. Ifnecessary, this information may be applied in more than
