CROMA
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Hardfacing Electrodes

CROMA

Croma is a AC/DC (+) type electrode depositing a 16Cr-4Mn weld metal which has work hardening characteristics. The weld metal resists impact abrasion and corrosion. Ideally suited for hardfacing applications to enhance resistance to impact abrasion. Ideal for buffer layers before depositing air hardening deposits. Typical applications include surfacing and building up of austenitic manganese steel components, crusher jaws, crusher hammers, roll crushers, mining machineries, dipper teeth, etc.

Precaution

1. Ensure the electrodes are dry. Re-dry the electrodes at 200-250°C for one hour.

2. Use minimum current and as low heat input as possible.

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL


Element
CMnSi 

Cr 

Percent
0.124.300.5516.5


WELD METAL HARDNESS

 As welded: 200-250 BHN

Work hardens (under impact) to 550 BHN

CURRENT AND PACKING DATA: AC / DC(+)


Size (mm)

Dia x Length

5x350
4x350
3.15x350
2.5x350
Current Range (Amps)
180-250
150-180
100-140
70-90
Weight / Carton (kgs)
30
4565
100


Hardfacing Electrodes

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