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Hardmelt 600 welding electrodes E6-UM-60 - E Fe8
Hardmelt 600 is a basic coated electrode for wear resistant surfacing parts of steel, cast steel and high Mn-steel, subject to abrasion, metal-to-metal wear, impact and/or compression stresses. Deposit weld metal has a martensitic structure, hardness of pure weld deposit approx. 600HB. After welding the deposit can be machined by grinding only.
Standards
- EN 14700: E Fe8
- DIN 8555: E 6-UM-60
Type of coating
- Basic
Current type
- AC/DC
Welding positions
- All positions, except vertical downward
Basic materials to be welded
- Steel
- Cast steel
- Steel with high Mn content
Applications
- Specially suitable for conditions with heavy abrasion and friction, in combination with impact
- Perfectly suited for applications involving rolling and sliding and metal-to-metal wear
- Universally applicable, but specific applications include the hard welding of parts, e.g., for the agricultural, earthmoving and stone crushing industries, hard welding of crane and mining truck wheels, chain wheels and sprocket teeth, guides for waste containers, dredging buckets, crabber blades, overhead roller bridges, cable pulleys, tractor and shovel parts, tug digger buckets, conveyor chains, hammer heads and clutches
Chemical composition
- Carbon (C): 0.50%
- Manganese (Mn): 0.40%
- Silicon (Si): 2.30%
- Chromium (Cr): 9.0%
- Iron (Fe): Ball.
Mechanical Properties
- Condition: as welded
Hardness
- 1 layer: 56 - 58 HRc
- After soft annealing at 780 - 820ºC/oven: Approximately 25 HRc
- After hardening at 1000 - 1050ºC/oil: Approximately 60 HRc
- 1 coat on steel with high Mn content: Approximately 22 HRc
- 2 coats on steel with high Mn content: Approximately 40 HRc
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