ESAB offers a complete line of welding and cutting products and solutions. Explore our equipment offering with ease based on product line and industry.
ESAB is a world leader in welding and cutting equipment and consumables. Explore our complete line of welding and cutting products for virtually every application.
ESAB University Courses are incremental, structured learning modules designed to help you take your skills to the next level. New courses are being added regularly, so please check back often. Click the link to see current courses offered.
Specialty Alloys Webinars
Articles cover industry topics more in-depth and are created in partnership with ESAB engineers and master welders. Click the links to see the latest.
Tips from ESAB Experts to help take your welding, cutting and fabrication skills to the next level.
ESAB University videos are curated with tips and best practices from top fabricators around the world. Learn new techniques or improve your current skills with ESAB University videos.
Enhance your knowledge of welding, cutting, and fabrication with free and accessible webinars on a variety of topics, including welding best practices, tips for using ESAB products, new product launches, and more, presented by trusted ESAB experts.
ESAB is a world leader in welding and cutting equipment and consumables. We offer a complete line of fabrication solutions for virtually every application.
ESAB UK Pension Scheme Information
ESAB EHS (Environment, Health and Safety) initiatives are monitored with the highest degree of importance and commitment to safety is ingrained in our culture.
The history of ESAB is the History of Welding. Go here to view an interactive look at ESAB's history in shaping the future of innovation in welding, cutting and fabrication.
ESAB Newsroom - Stay up to date with the latest news from ESAB. View press releases, product announcements, corporate news, and more here.
View available job openings and more on the ESAB Careers page.
Purchasing from an ESAB Authorised Distributor guarantees you first-class customer service and support for all ESAB products.
ESAB offers a wealth of product support resources, including a range of technical and service publications, from Safety Data Sheets and downloadable product manuals to product certifications.
Visit ESAB's global manual search engine to access the items below and more.
Global User Manuals
Instruction Manuals
Spare Parts List
Product Storage Instructions
View Main Contact Page
View ESAB Location Information
No playlist found! Your playlist can be created here.
Filler metals
In the previous article, we discussed welding guidelines for stainless steel and nickel alloys. The present article focuses on welding duplex stainless steel.
Duplex alloys are quite different from standard stainless steel. They contain approximately 50% each of ferrite and austenite. If not properly welded, this class of alloy can be susceptible to the formation of embrittled phases or the formation of precipitates that are susceptible to pitting. By recognising this, and properly following recommended procedures, mechanically sound and corrosion-resistant fabrications are easily accomplished.
Exaton provides welding guidelines to successfully join duplex base materials.
The following parameters are required to be followed when welding duplex stainless steel:
Due to the sluggish nature of ferritic materials, weld pool flow tends to be sluggish. To prevent lack of fusion it is recommended to use wider joint angles and larger root openings than commonly used in stainless steels. Refer to Exaton Welding Guidelines for more specific information.
Due to the nature of ferritic materials, weld pool flow is sluggish. This can be compensated for by the proper shielding gas selection, which can also benefit the proper austenite and ferrite balance. The selection of backing gas can have a beneficial effect on corrosion resistance.
Refer to Exaton Welding Guidelines for more specific information.
In order to achieve the optimum ferrite to austenite ratio, the heat input must be properly controlled. The recommended heat input range is dependent on the grade of duplex stainless steel being fabricated. Refer to Exaton Welding Guidelines for more specific information.
Duplex alloys have specific interpass temperatures recommended, to prevent the formation of brittle intermetallic phases. The proper interpass temperature is dependent on the grade being welded and the base metal thickness. Refer to Exaton Welding Guidelines for more specific information.
Ferritic stainless steel alloys, by their nature, tend to weld sluggishly due to their poor flow characteristics.
Exaton has developed special chemistries for several grades of ferritic stainless steel to improve this condition. Contact Exaton for more information.
For many industrial applications, it is necessary to contain relatively high pressures conforming to various pressure vessel codes such as ASME. At the same time, corrosion protection is required to extend the life of the vessel.
A common solution is to fabricate the vessel with high strength, low alloy steel, and weld clad the container, with various higher alloy materials, utilising various processes. Common processes used can be MIG, TIG, SMAW and SAW using bare wire or wire and flux combinations. In the last several decades, the utilisation of Strip Electrodes has become increasingly common in either a submerged arc or electroslag process.
ESAB has developed an extensive line of consumable wire, strip and fluxes that can achieve fully alloyed weld overlays in as little as one layer with deposition rates exceeding 90 lb/hr (40 kg/hr).
It is necessary to apply the first layer with an over-alloyed welding consumable to achieve a mechanically sound weld deposit. Subsequent layers can be achieved using a filler metal with the final deposit chemistry desired.
Contact your Exaton Sales Associate to find out more about the grades available in wire, strip or flux combinations.