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Chrome-Moly Steels Conference

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Conference Disclaimer

Each nonmember attendee will receive a two-year complimentary membership in AWS.
The registration fee does not include hotel accommodations. Hotel accommodations are subject to hotel regulations and are the responsibility of the attendee.
As an added benefit, AWS Conference attendees are awarded 1 PDH (Professional Development Hour) for each hour of conference attendance. These PDH’s can be applied toward AWS recertifications and renewals.

Tuesday, November 17, 2009 • 9:00 AM – 3:15 PM
Chairs: Robert R. Irving and Russel Fuchs
Member of AWS, FMA, SME, NAM, or PMA: $345
Nonmembers: $480 • Registration Code: W23
Room N133

The welding of chrome-moly steel goes way back to the days when tubing was oxyacetylene welded to make up the fuselages of the early pre-aluminum airplanes. It all required outstanding precision on the part of the welder. Believe it or not, even though the methods have changed, the welding of 4130 steel still requires utmost precision on the part of the welder. The welding of chrome-moly steels requires great skills from all parties involved. Not just the welding, either. Read More

Conference Program

Welding of the 1 1/4Cr-1/2Mo Steels

9:00 AM – 9:30 AM
Ben Pletcher, Welding Engineer/Metallurgist and Co-author James Brennan, Senior Welding Engineer, Chicago Bridge & Iron Co.
Many of the high-temperature pressure vessels used in refining operations today depend on the use of chrome-moly steels. The requirements for the material and welding have evolved to included temper embrittlement, low temperature impacts, and low hardness values. The joining of these alloys requires planning, control and execution in all phases of the welding operation.

Induction Heating as a Tool for Minimizing the Risk of Weld Cracking

9:35 AM – 10:05 AM
Steve Latvis, Regional Manager, North & South America, Global Pipe Systems, Miller Electric Manufacturing Co.
Relatively new induction heating equipment is finding use in various industries for preheat and stress relief. The technology appears to be more cost-effective than either resistance heating or flame heating. Air-cooled equipment is available for temperatures up to 400 deg F and liquid-cooled equipment for work up to 1,450 deg F.

Pipe Welding for the Offshore Petroleum Industry

10:10 -10:40
Keith Packard, Manager, Hobart Brothers Co.
Chrome-moly steel represented a considerable amount of pipe to be welded and inspected in the expanding oil production industry off the coast of Newfoundland, in the Jeanne d’Arc Basin. Most of the work was done using Gas Tungsten Arc Welding (GTAW) and Shielded Metal Arc Welding (SMAW) processes. The welding was performed in local area fabrication shops and on the drilling platforms.

Welding 4130 Cr-Mo Steel in the Motorsports World

10:45 AM – 11:15 AM
Wyatt Swaim, Chief Executive Officer, WJS Consulting Inc.
The fabrication and welding pitfalls of 4130 Cr-Mo when used for motorsports applications. Top fuel dragsters are now exceeding 7,500 HP, and special welding techniques and filler materials will be discussed to avoid weld failures. This interactive talk will highlight the 10 most-asked questions for 4130 Cr-Mo and will assist anyone involved with racing structures or lightweight aircraft.

The Welding of 2 1/4 Cr–1 Mo–V: A Challenge

11:20 AM – 11:50 AM
Volker Gross, Manager Application Technology, Bohler Schweisstechnik
The use of 2 1/4 Cr-1 Mo-V steels (Grade 22V) has become more popular for the fabrication of heavy-wall pressure vessels due to its higher strength and creep resistance as compared to the conventional 2 1/4 Cr–1 Mo steel. However, it has not been without its share of challenges when it comes to welding. High toughness of the weld deposit is desirable both in the as-welded condition and after PWHT; as-welded in order to handle the component during fabrication without fear of cracking and after PWHT to insure in-service requirements are satisfied with respect to startup and shutdown. Issues with reheat cracking have been experienced, especially in the highly restrained weldments using the SAW process. Filler metals have been developed to meet these challenges.

Break for lunch

11:55 AM – 1:00 PM

High-Temperature Mechanical Performance of 2 1/4Cr-1Mo Steel Weldments

1:00 PM – 1:30 PM
Robert W. Warke, Associate Professor of Welding and Materials Joining, LeTourneau University
Experience has demonstrated the relative vulnerability of welded joints to localized creep damage in high-temperature service. An extensive database of weldment test data was assembled and evaluated for a variety of welding processes, joint geometries, heat treatment conditions, and test configurations. Performance trends were assessed in light of base metal data and current design rules for pressure vessels and piping.

Welding and PWHT of P91 Steel

1:35 PM – 2:05 PM
William F. Newell, President, Euroweld Ltd.
Use of P(T)91 components is experiencing worldwide usage. Premature failures are being encountered due to design, inadequate attention to following procedures, or improper post-weld heat treatment. Heat treatment of both component manufacture and completed welds appears to be the number-one cause of premature failure. Factors that influence these failures will be presented.

Time of Flight Diffraction Testing

2:10 PM – 2:40 PM
Ronald W. Kruzic, Corporate QA/NDE Consultant, Chicago Bridge & Iron Company
ASME Code Case 2235 is for the use of an ultrasonic examination in lieu of a radiographic examination for pressure vessels and boilers. This talk is concerning the use of this Code Case utilizing the Time of Flight Diffraction technique for examination of coke drums fabricated from Cr-Mo alloys which have been clad with Type 410s stainless steel.

A New Advancement in Chrome-Moly Flux Cored Wires

10:10 AM – 10:40 AM
Keith Packard, Welding Engineer, Hobart Brothers Co. Co-author is Joe Bundy, Tubular Wire R&D Engineering Manager
A challenge to meet low-temperature impact toughness properties with gas-shielded flux cored filler metals in chrome-moly applications has led to a new patented technology in flux cored electrode design. This technology can provide impact toughness of 50-100 ft/lbs at -40 deg F. These new filler metals can now provide toughness that far exceeds even shielded metal arc welding or submerged arc welding.

Chrome-Moly Steels Conference

Conference Program

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