HV600 Hard Facing Arc Welding Electrodes From NIkko Steel 3,2mm
Item code: 100
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Nikko steel HV600 hard facing arc welding electrodes available in several sizes 3,2mm
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HV600 Hard Facing Arc Welding Electrodes From NIkko Steel 3,2mm

Top quality hard facing welding rods designed for applications like earth moving abrasion use, brilliant quality electrodes with good arc striking characteristics mark out these Nikko Steel welding rods as the first choice for real value for money.

HV-600
RUTILE - LOW ALLOY - HIGH EFFICIENCY HARDFACING ELECTRODE FOR BALANCED RESISTANCE TO ABRASION AND IMPACT LOADING

SPECIFICATION              AWS A5.13             DIN 8555                   JIS Z 3251 CLASSIFICATION                  EFe3                E6-UM-60-GP         DF2B - 600 - R

PRODUCT DESCRIPTION
The design emphasis of the alloyed weld metal ensures the desired hardness level to the specification is readily achieved as is the deposits maximum resistance to impact loading combined with medium resistance to abrasion. The flux contains the appropriate alloying elements plus iron powder addition and is extruded onto a ferritic wire with a balance of silicates that ensures both coating strength and resistance to moisture absorption.

WELDING FEATURES OF THE ELECTRODE
The electrode is suitable for both AC and DC and is used to best advantage in the flat and HV positions. The arc is smooth and stable weld beads are evenly rippled, of bright appearance and the slag readily detachable. The weld deposit is highly crack resistant under normal circumstances, but on high carbon cast steels or restrained sections of mild steel, a pre-heat of 150 °C should be used.

APPLICATIONS AND MATERIALS TO BE WELDED
On high carbon steels HV-250B should be used as a buffer layer. The weld deposit has good resistance to abrasion, under normal circumstances is crack free, and will withstand a reasonable amount of impact loading. Used to particular advantage for: Bulldozer blades, crusher jaws, bucket lips and teeth involved in earth moving and mineral crushing. Where the main wear is abrasion, but with some impact resulting from rocks and compacted minerals. Under normal circumstances the weld metal is non-machinable.

WELD METAL ANALYSIS COMPOSITION % BY Wt.

                    C       Mn     Si       S         P        Cr       Mo       Nb       V        Fe
MIN            0.5      0.5     -          -          -        4.0        -           -          -
MAX           0.8      1.5    1.0    0.03    0.03      7.0      1.0       0.4        -
TYPICAL    0.6      1.0     0.3    0.02   0.02      5.0      0.1      0.02    0.03     Bal.

WELD METAL HARDNESS (ALL WELD METAL)
AS WELDED 150oC
PRE-HEAT                                  HRC                 HV
1 st Layer                                     50                    520
2 nd Layer                                    55                    600
3 rd Layer                                     58                    690
Pre-heat and dilution may lower hardness on 1st two layers but not on subsequent layers.

WELDING AMPERAGE AC or DC+
Ø (mm)               2.6                   3.2               4.0                 5.0
MIN                     60                    90               130                160
MAX                    90                   130              170                 200

OTHER DATA
Electrodes that have become damp should be re-dried at 150oC for 1 hour.
 
































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