Page 160 - Technical Guidbook - Zika industrial Welding Supplies

REBUILDING & HARDFACING HARD FACING Z-2410
Work hardening recommendation

To gain a good hard face welding, the first weld seam is
recommended to implement with minimum current and thus reduce
thedilution of the metal with the hard coating. Description:
An electrode for surfacing parts subjected to medium abrasion and high
The second and third seams can be weld with the recommended compression and impact.
currents. A sub-layer with softer electrode is recommended in case of high impacts.
The weld metal is machineable.
Coating manganese steel needs first to be weld with buffer layer
implement by fill with Z2411. Uses:
• Gear wheels.
When there a need to fill surface or to fix a part before hard face, • Caterpillars truck links.
it is recommended to fill with Z2900 or with Z2411 and only in the • Track rollers.
upper layer We will do the Hard facing welding. • Runners.
• Dredging machinery.
Hard facing can weld up to a maximum of three layers, unless Welding position:
otherwise indicated. Hard facing provide a hard welding rather a
hard one.
Welding cracks sometimes appear. ASME: 1G 2F 2G 3G 4G
ISO 6947 PA PB PC PF PE
This is acceptable and has no fear to find these cracks.
Mechanical Properties:
Hardness: 37-42HRc
Re-drying
2h/300ºC

Current Diameter Types of
)Amps( in mm Current and Polarity
70-110 3/32 2.5
105-115 1/8 3.25 AC
120-160 5/32 4.0 DC )+(
180-240 3/16 5.0 70V min O.C.V
250-290 1/4 6.0
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