HYN Class Flux Cored Wire works with HSLA-65 grade steel.

Press Release Summary:

Made to exceed US Navy welding standards, gas-shielded Tri-Mark TM-71HYN produces X-ray quality welds with diffusible hydrogen below 5 ml/100 g. Impact values exceed requirement of 30 ft-lb at -20°F under high and low cooling rates, and welds provide yield strengths of 60-90 ksi. All-position wire, suited for use with shielding gas mixture of 75% CO2 and 25%, comes in .045 in. dia and is hermetically sealed to eliminate moisture contamination.

Original Press Release:

Hobart Brothers Company Develops First Military Approved "HYN" Class Flux Cored Wire for HSLA-65 Grade Steel

TROY, Ohio. May 1, 2006-Hobart Brothers Company has announced the release of the first military approved "HYN" classification flux cored wire for HSLA-65 grade steel (a new high strength, low alloy steel used to construct U.S. Naval ship hulls). Specially formulated to provide high strength welds on critical applications, the new Tri-Mark TM-71 HYN gas-shielded flux cored wire exceeds the extremely stringent welding standards established by the U.S. Navy.

"The introduction of Tri-Mark TM-71HYN attests to Hobart Brothers' ongoing commitment to assess and meet the highly specified welding needs of the U.S. military," explains Fuhu Chen, product development engineer, Hobart Brothers Company.

Stringent Testing, Quality Results
TM-71HYN flux cored wire passed stringent requirements for chemical and mechanical properties in order to obtain the U.S. Navy's approval. The wire specifically meets the Navy's standards for tensile and yield strengths, impact properties, diffusible hydrogen levels and provides all position welding performance attributes that exceed typical conditions found in any civilian or commercial shipyard application.

"We are extremely proud that TM-71HYN is the only HSLA-65 compatible, "HYN" classification filler metal to be approved by the military for developing and constructing our nation's next generation Naval fleet, " adds Chen.

High Standards, High Strength
Tri-Mark TM-71HYN is an all-position wire for use with a shielding gas mixture of 75 percent CO2 and 25 percent Argon. Its high strength welds provide yield strengths of 60 to 90ksi under extreme high and low cooling rates, ensuring consistent weld properties despite changing welding conditions in the field. Tri-Mark TM-71HYN also features low hydrogen levels to prevent embrittlement, low ductility welds, under-bead cracking and other weld discontinuities.

Producing X-ray quality welds with diffusible hydrogen below 5ml/100g, TM-71HYN wire provides excellent results where low-temperature impacts are required. Impact values for TM-71HYN exceed the requirement of 30 ft-lbs. at -20 degrees Fahrenheit under both high and low cooling rates, and the wire can be used for single and multiple-pass welding applications. TM-71HYN is currently available in .045- diameter on 33-lb spools and is hermetically sealed to eliminate moisture contamination.

Hobart Brothers Company is dedicated to the highest level of Performance Tri-Mark brand products, visit Hobartbrothers.com, call 1-800-424-1543, fax 1-800-541-6607, or write Hobart Brothers Company, 101 Trade Square East, Troy, OH 45373.

Hobart Brothers Company of Troy, Ohio, is a leading manufacturer of welding filler metals marketed under the brand names Hobart, Tri-Mark, McKay and Corex. Hobart Brothers Company is a wholly owned subsidiary of Illinois Tool Works, Inc., Glenview, Ill., a diversified multinational manufacturer of highly engineered components, assemblies and systems.

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