Page 167 - Technical Guidbook - Zika industrial Welding Supplies

Z- 2460 HARD FACING EXETREME ABRASION Z-2486
For Very Intense Abrasion Without Impact
With Shocks

Description: Description:
Basic coated electrode for hard facing of parts subjected to very intense abrasion Tubular electrode filled with W and Cr carbides. Deposits highly resistant to
with shocks. abrasion without impact. Composed of W carbides in austenitic matrix that
180% recovery. contributes an excellent friction coefficient and exceptional resistance to abrasion.
For building use Z151. No slag deposit. The weld material is not machinable.
For buffer layer use Z307HR. The welding deposit can be increased by introducing a second electrode in the arc.
Designated for pieces subjected to high mineral abrasion and temperature up to 300ºC.
Uses:
• Wear plates in quarry equipment. Uses:
• Hammers of gyratory crushers. • Surfacing of all austenitic steels , cast iron, tool steels or highly alloyed steels.
• Hammers for refractory materials clay and basalt. • Civil and agricultural engineering
• Wire guides. • Mixers.
• Meshing gears for trefoil mixers. • Blades
• Conveyor screws
Welding position: Technique and Recommendations:
• For buffer layer use Z-2911 or Z307HR.
• If building is necessary apply Z-151.
• Maintain an arc length of 2-5 mm. Weave with the electrode. Hold the electrode
ASME: 1G 2F
ISO 6947 PA PB perpendicular to the surface.
• Do not apply more than 2 or 3 layers.
Mechanical Properties: Welding position:
hardness: 56HRc as welded
Re-drying
1h/300ºC ASME: 1G 2F
ISO 6947 PA PB
Mechanical Properties:
Hardness: 64-68HRc

Current Diameter Types of Current Diameter Types of
)Amps( in mm Current and Polarity )Amps( in mm Current and Polarity
115-150 1/8 3.25 80-120 1/4 6.0 AC
150-200 5/32 4.0 DC )+( DC )+(
120-180 1/3 8.0
190-240 3/16 5.0 45V min O.C.V
168 169