Technical Information - Haynes International, Inc.

HIGH PERFORMANCE ALLOYSTechnical InformationWelding Filler Metal InformationThe following charts were developed to give general guidance forwelding high performance alloys used in a wide variety of corrosionandheat-resistant applications. Information concerning both fillermetal specifications and filler metal selections for welding similar anddissimilar alloys are included.Table 1, Applicable Welding Product Specifications, references bothAmerican Welding Society (AWS) and Aerospace MaterialSpecifications (AMS). In addition, identification as corrosion (C) orhigh temperature (HT) alloys, nominal compositions, and productdescriptions are given.The Filler Metal Selection Guide (Table 2) lists, in most cases, threealternative filler metal choices. The numbers listed in Table 2 arereferenced in Table 1 as alloy class.The selection of filler materials, for dissimilar welding applications,should be based upon three design criteria. Those design criteriaare:1. The base metals and filler metal should be metallurgicallycompatible. That is, the as-deposited weld metal should not forma deleterious microstructure or contain deleterious phases whichmight promote hot cracking, embrittlement, or other metallurgicalproblems.2. The as-welded joint should possess mechanical strength andtoughness (at room temperature, low temperatures and elevatedtemperatures) appropriate for the intended service.3. The as-welded joint should possess aqueous or high-temperaturecorrosion resistance, depending upon the anticipatedenvironment, which is at least equivalent to one of the basematerials.The above design criteria were applied in all cases during thedevelopment of the chart. It should be recognized that thesedissimilar selections are based upon experience and engineeringjudgment. In many cases, the particular joint combination has notbeen tested and the selection has been made based uponengineering judgment. It is the responsibility of the organizationperforming the welding to establish proper welding practice.Therefore, it is strongly recommended that welding procedurequalification be performed to assure that the particular dissimilarjoint is appropriate for the intended service.H-3167B© 2001, Haynes International, Inc.

Dissimilar Selection GuidelinesIn addition to the previously mentioned design criteria, thefollowing general guidelines were used in the selection of fillermetals:1. Only filler metals that are listed in an AWS or AMSspecification were used, except for new alloys that have nospecification listing.2. The selections for the category stainless and carbon steelsare appropriate for joining austenitic, super austenitic,ferritic, and duplex stainless steels, as well as carbon andlow alloy steels to HAYNES ® and HASTELLOY ® alloys.3. When one base metal was a precipitation hardening alloyand the other base material was a non-precipitationhardening alloy, only non-precipitation hardening fillermetals were used. When both metals were precipitationhardening, combinations of hardening and non-hardeningfiller metals were used.4. From an aqueous corrosion standpoint, HASTELLOY C-22 ®alloy was selected as the over-alloyed filler metal of choice.From a high-temperature standpoint, HASTELLOY S,HASTELLOY W, and HAYNES 556 TM alloys were selectedas filler metals for many applications.All trademarks are owned by Haynes International, Inc.

STANDARD PRODUCTSBy Brand or Alloy Designation:HASTELLOY ® Family of Corrosion-Resistant AlloysB-2, B-3 ® , C-4, C-22 ® , C-276, C-2000 ® , D-205 TM , G-3, G-30 ® , G-50 ® and NHASTELLOY Family of Heat-Resistant AlloysS, W and XHAYNES ® Family of Heat-Resistant Alloys25, R-41, 75, HR-120 ® , 150, HR-160 ® , 188, 214 TM , 230 ® , 230-W TM , 242 TM , 263, 556 TM , 625, 718, X-750,MULTIMET ® and WASPALOYCorrosion-Wear Resistant AlloyULTIMET ®Wear-Resistant Alloy6BHAYNES Titanium Alloy TubularTi-3Al-2.5VStandard Forms:Bar, Billet, Plate, Sheet, Strip, Coils, Seamless or Welded Pipe & Tubing, Pipe Fittings, Flanges,Fittings, Welding Wire and Coated ElectrodesProperties Data:The data and information in this publication are based on workconducted principally by Haynes International, Inc. andoccasionally supplemented by information from the openliterature, and are believed to be reliable. However, we do notmake any warranty or assume any legal liability orresponsibility for its accuracy, completeness or usefulness, nordo we represent that its use would not infringe upon privaterights. Any suggestions as to uses and applications forspecific alloys are opinions only and Haynes International, Inc.makes no warranty of results to be obtained in any particularsituation. For specific concentrations of elements present in aparticular product and a discussion of the potential healtheffects thereof, refer to the Material Safety Data Sheet suppliedby Haynes International, Inc.For More Information Contact:Kokomo, Indiana 46904-90131020 W. Park AvenueP.O. Box 9013Tel: 765-456-6012800-354-0806FAX: 765-456-6905Anaheim, California 92806Stadium Plaza1520 South Sinclair StreetTel: 714-978-1775800-531-0285FAX: 714-978-1743Arcadia, Louisiana 71001-97013786 Second StreetTel: 318-263-9571800-648-8823FAX: 318-263-8088091000Windsor, Connecticut 06095430 Hayden Station RoadTel: 860-688-7771800-426-1963FAX: 860-688-5550Houston, Texas 77041The Northwood Industrial Park12241 FM 529Tel: 713-937-7597800-231-4548FAX: 713-937-4596www.haynesintl.comEnglandHaynes International, Ltd.P.O. Box 10Parkhouse StreetOpenshawManchester, M11 2ERTel: 44-161-230-7777FAX: 44-161-223-2412FranceHaynes International, S.A.R.L.Boite Postale 953595061 CERGY PONTOISECedexTel: 33-1-34-48-3100FAX: 33-1-30-37-8022For Referral to Authorized Distributors in your area Fax: 1-765-456-6079Printed in U.S.A.ItalyHaynes International, S.R.L.Viale Brianza, 820127 MilanoTel: 39-2-2614-1331FAX: 39-2-282-8273SwitzerlandNickel Contor AGHohlstrasse 534CH-8048 ZurichTel: 41-1-434-7080FAX: 41-1-431-8787SingaporeHaynes Pacific PTE LTD15 McCallum Street#06-04 Natwest CentreSingapore 069045Tel: 65-2223213FAX: 65-2223280