For Hard-Facing, Wear-facing or Overlay Applications
LoTherme -D-HD
AWS: SFA
EN ISO CODE:
Excellent toughness while exhibiting good machinability for repair
of cracked and fractured steels.
A unique alloy designed to deposit low-alloy steel
weld metal for surfacing of hammer dies. The
weld metal is tough, free from cracks, porosities,
and any other surface defects.
LoTherme-D-HD is suitable for deposition of surface or buffer layers on forging
dies, hot working tools, hammer bases, sow blocks, rams, bolster plates,
columns, etc., used as a barrier layer before surfacing with higher alloys.
As Welded: 35-39 RC
SR 560 °C for 01 hour: 35-38 RC
Re-dry the electrodes at 250 °C for 1 hour. When welding hardenable steels of
large thickness, adequate care for preheating, slow cooling & post-weld heat
treatment is recommended for best results. Pre-heat heavy thickness jobs up
to 400 °C and maintain this while welding, with short arc, along with peening
after every pass, is necessary. After welding, cool in still air up to 200oC. Then
charge these large dies into a furnace to hold at 560 °C and temper for 01 hour
per inch thickness of job, and then slow cool to room temperature for machining.
|
Size (mm) Dia x Length |
6.3 x 350 | 5 x 350 | 4 x 350 | 3.15 x 350 |
| Current Range (Amps) | 250-280 | 200-250 | 150-180 | 110-140 |
