Cobalt 1 Electrode

Nominal Chemistry Specification (%)
C Mn Si Cr Ni Mo Fe W Co
Min 2.0 1.0 2.0 22.0 3.0 1.0 3.0 11.0 BAL
Max 3.0 Max Max 33.0 Max Max Max 14.0 BAL

 

Deposited Chemical Composition WELDMETAL UNDILUTED
  C Mn Si Cr Ni Mo Fe W Co
2.5 0.2 1.1 31.5 2.2   2.2 12.5 BAL

 

 

Operating Parameters (Typical)
Polarity 1/8 in (3.2 mm) Current (Amps)

5/32 in (4.0 mm)

 

Current (Amps)

3/16 in (4.8 mm)

DC+ 115-135 145-165 170-190
AC OCV 60+

 

HARDNESS UNDILUTED TYPICAL 53 HRC

HARDFACING PROCESSES
GTAW PLASMA OXYFUEL GAS

DIAMETER RODS AVAILABLE
2.5MM 3.2MM 4.0MM 4.8MM 5.0MM 6.4MM 8MM

Application
Cobalt Electrodes #1 The alloy has a higher carbide content (19%) than those made using either Cobalt 6 or Cobalt 12 electrodes. The composition is such that primary hypereutectic carbides are found in the microstructure. This characteristic gives the alloy higher wear resistance, accompanied by reductions in the impact and corrosion resistance. The higher hardness also means a greater tendency to stress crack during cooling. This cracking tendency may be minimized by closely monitoring preheating, Interpass temperature and post heating techniques. While the CoCr deposits soften somewhat at elevated temperatures, they normally are considered immune to tempering. Used to build up mixer rotors and items that encounter severe abrasion and low impact.

Class: ECoCr-C

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