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1/29/2016

Hardface Technologies: Products for rail frogs, crossings

Hardface Technologies, a business unit of Postle Industries, has introduced a new product designed for manganese steel railroad frogs and crossings.

Named Postalloy^® FrogTuff, the product is offered as a flux-cored wire as well as a flux-coated electrode. Under severe impact — such as hammering or pounding from continuous rail traffic — the fully austenitic weld deposit quickly becomes tougher and harder. It will not spall or mushroom.

The flux-coated electrode operates on either AC or DC reverse polarity. The arc is smooth and stable with low spatter loss, and slag removal is easy. FrogTuff has a tensile strength of 125,000 psi, a yield strength of 80,000 psi and a 34 percent elongation. The hardness as deposited is 15-22 Rc and work hardens up to 55 Rc. 

FrogTuff-FCO, a self-shielded flux cored wire version of the product,   is a high alloy austenitic manganese welding wire for joining and build-up. It produces high-strength, crack-resistant deposits that are tough, ductile and work-harden rapidly. The high yield strength reduces mushrooming from impact. FrogTuff-FCO has a tensile strength of 135,000 psi, a yield strength of 90,000 psi and a 30 percent elongation. The hardness as deposited is 20 Rc and work hardens up to 50-55 Rc.