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CEWELD® AA 66 Safe is a chromium-free hardfacing wire designed for extreme abrasion resistance.
Typical applications include excavator cutters, mixer blades, conveyor augers, concrete pumps, and gravel and sand processing equipment.
CEWELD® AA 66 Safe is a chromium-free hardfacing wire designed for extreme abrasion resistance.
Typical applications include excavator cutters, mixer blades, conveyor augers, concrete pumps, and gravel and sand processing equipment.
The hardfacing deposit of CEWELD® AA 66 Safe contains a high density of special boron-carbides, providing exceptional resistance to severe abrasion from sand and minerals. The weld metal is machinable only by grinding, and the use of a stringer bead technique is highly recommended. While the hardfacing layer naturally develops check cracks, this does not impair its wear resistance; these cracks effectively reduce residual stresses within the layer and prevent it from delaminating from the base material.
A single layer applied to mild steel achieves a hardness of over 60 HRc, while a maximum of two layers can be applied to reach a hardness of up to 70 HRc.
~70 HRc
| Heat Treatment |
RP0,2 (MPa) |
Rm (MPa) |
A5 (%) |
Hardness |
|---|---|---|---|---|
| As Welded | 66 HRc |
