Automatic Welding, 2019, №06



2019 №06 (13)

DOI of Article 10.15407/as2019.06.01

2019 №06 (02)

---

Avtomaticheskaya Svarka (Automatic Welding), #6, 2019, pp.4-13

Submerged-arc surfacing of higt-alloy steels by flux-cored wires

J.-M. Bonnel¹, M. Maurer¹, R. Rosert²

¹Welding Alloys Group, Holtzwihr, France
²Dr. Rosert RCT GmbH, Dresden, Germany

Cored wires are used in numerous welding processes with or without external gas or flux shielding. Submerged arc welding (SAW) with cored wires, seamed or seamless, for joining mild and low alloyed steel grades is a technique that has demonstrated clear advantages during the three last decades. Ever since its invention, the SAW process has evolved with one main goal: to combine quality with productivity. With low alloy wires, the benefits have already been clearly demonstrated and widely exploited. However, little has been written on SAW and cladding with cored wires for corrosion or heat resisting applications. Its extension to high alloy compositions brings corresponding benefits and adds some specific and unique features. This paper focuses on consumable specificities and on the quality and productivity features of SAW with CRA (corrosion resistant alloy) cored wires. It describes the potential as well as the limitations of this technique. Cored wires are now used for submerged arc welding of almost all stainless steels ranging from soft martensitic to super-duplex, and for a series of nickel base compositions as well as for cladding cobalt base alloys. Examples of industrial applications with austenitic, duplex, martensitic and heat resisting stainless steels are given to illustrate the potential of the cored wire solution. 13 Ref., 4 Tabl., 25 Fig.
Keywords: Submerged arc welding, surfacing, cored wire, high-alloy steels

Received: 15.05.2019
Published: 20.05.2019
 

References

1. Fils tubulaires pour le soudage d’aciers inoxydables, JM Bonnel, N Vass, N.C Pease, Soudage Automatique – Applications Industrielles du Soudage avec Fil Fourré – Institut de Soudure – 11/12/2001.
2. Tubular wire welding, D. Widgery, Abington Publishing, ISBN 1 85573 088X.
3. Cored wires for corrosion resistant alloys: status report 2006, JM Bonnel, N.C. Pease, International Institute of Welding Congress, 8-10/03/2006, Stellenbosch, South Africa.
4. EN ISO 4063: Welding and allied processes – Nomenclature of processes.
5. Gevulde draad MIG/MAG en onderpoederdek lassen van austenitisch en duplex roestvast staal, JM Bonnel, Welding Alloys - Seminarie Belgisch Instituut voor Lastechniek, Stivak en De Nayer Instituut, 2001.
6. Fils fourrés à poudre métallique, JM Bonnel – Journée d’étude «Soudage et mise en œuvre de l’acier inoxydable», Institut Belge de la Soudure – 28 novembre 2002.
7. EN ISO 17633: Welding consumables – Tubular cored electrodes and rods for gas shielded and non-gas shielded metal arc welding of stainless and heat-resisting steels – Classification.
8. Proceskeuze van modern lastechnieken in roestvast staal, F. Neessen, H. Meelker, F. Naber – Lincoln, Roestvaststaalgids 2012.
9. ASME II C SFA-5.22: Specification for stainless steel flux cored and metal cored welding electrodes and rods.
10. Technical report ISO/TR 17671-5: Welding - Recommendations for welding of metallic materials - Part 5: Welding of clad steels.
11. Which process? Peter Houldcroft, Abington Publishing, ISBN I 85573 008 1.
12. Arcelor Product Information: URANUS B6 and B6N. A multipurpose Austenitic stainless steel with PREN ≥ 34.
13. Submerged arc welding with tubular cored wires: Welding & cladding of high alloy steels, B.Gerard, N.C. Pease, Welding Alloys.