TROY, Ohio. October 28, 2010. To improve weld quality on modified Grade 91 steels used in high-temperature, high-pressure applications in the power generation and petroleum industry, Hobart Brothers offers its Tri-Mark^®TM-B9 welding wire. This gas-shielded flux-cored wire offers all-position welding capabilities and fully matches the base material properties, ensuring top weld quality no matter the location of the weld.The TM-B9 wire meets the requirements of chrome-moly welding, including providing an X-factor of less than 15 ppm (parts per million).

The Tri-Mark TM-B9 welding wire also provides a weld deposit with low diffusible hydrogen content-3.10 ml per 100g of weld metal-to prevent cracking during the pre- and post-weld heat treat cycles of Grade 91 steels. This feature results in x-ray quality welds and minimizes costly downtime for rework. The Tri-Mark TM-B9 welding wire also features a fast freezing slag that allows for welding in all positions without concern for slag inclusions. Low spatter levels and excellent arc stability add to the wire’s ability to produce high quality flat weld beads. The Tri-Mark TM-B9 wire offers a tensile strength of 116 ksi and yield strength of 96 ksi. It is available in .045-inch diameters on 33 lb. spools. It operates with a shielding gas mixture of 75 percent Argon and 25 percent CO₂.
Hobart Brothers is dedicated to the highest level of Performance Welding^TM. For product specification sheets or to learn more about Hobart Brothers and 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. Based in Glenview, Ill., ITW is a multinational manufacturer of a diversified range of value-adding and short lead-time industrial products and equipment.