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Hard Facing Electrode
Hard Cover 480 (HC480) is a joining and cladding electrode for manganese steel that can be flame cut. Commonly used in the re-pair of rail equipment and construction equipment manufactured of manganese steel. The microstructure of this alloy in the as-deposited condition consists of a soft manganese alloy austenite which rapidly work hardens under impact loading.
Typical Applications :
Ideal for railroad frogs, switches, crossings and for wear plates, bucket teeth, bucket lips, and associated manganese steel parts. Also recommended for sheep foot tampers, hammers, crushers, and a variety of parts designated to resist impact.
Specification :
| AWS Classification | Hardfacing |
| Welding Current | AC - DCEN |
| Typical wire chemistry (As Welded) | |||||||
| C | Ni | Mn | Si | S | P | Cr | Fe |
| 0.6 | 3.65 | 16 | 0.08 | 0.01 | 0.015 | 3.75 | BAL |
| Typical Mechanical Properties (As Welded) | |
| Tensile strength, ksi | 116 |
| Elongation%, min | 38 |
| Work hardness | 41 - 54 Rc |
| Welding Positions | F,V-up,DH,H |
| Available Diameters and suggested Operating Range in Amps | |
| 1/8" | 90 - 125 |
| 5/32" | 125 - 170 |
| 3/16" | 160 - 225 |
Note : Clean base metal of oils and fatigued sections, and do not allow weld inter pass temperature to exceed 500oF.
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