Cobalt-based surfacing wire has the same cores as cobalt-based surfacing electrode, the same characteristics and uses as cobalt-based surfacing electrode. That is to say, the alloy wire has good red hardness and can maintain high hardness, good wear resistance and corrosion resistance above 600℃. Among them, the carbon content is high and the wear resistance is good, but the impact resistance decreases. The dilution rate of gas welding is lower than that of arc welding, the melting amount of base metal is less, the penetration is shallow, and the surfacing quality is high, so it is widely used. However, due to the large heating area and slow temperature rise of the welded workpiece in gas welding, the workpiece deformation is larger than that in electric welding.

Cobalt Based Surfacing Welding Wire
EB specializes in Cobalt Based Surfacing Welding  Wire for 20 years.Exported to more than 60 counties.

 

 

 

 

 

 

 

 

 

 

Cobalt-based surfacing wires include Co111, Co112, Co113,Co114, Co115, Co116, Co117, Co101 and Co103. At present, domestic cemented carbide surfacing wires are made of high chromium alloy cast iron (So, Mayte) and cobalt-based alloy . Because these alloys can not be processed by rolling and drawing, they are usually cast by casting welding wires or by horizontal continuous casting of wire rods. Aerobic-acetylene or gas shielded welding can be adopted. Co103 is a boron-containing high chromium cast iron surfacing wire. Its surfacing layer is hard to be machined with cemented carbide cutters and has high wear resistance.

Main characteristics and application of Cobalt Based Surfacing Welding Wire

Cobalt based surfacing welding wire is mainly used for surfacing repair of worn parts of chemical equipment and various mechanical equipment. Such as metallurgical machinery, mining machinery, turnout, jaw plate, bucket, shovel teeth, engineering quarry and other brick machine cutters, screw, mixer blades, fan blades, mineral processing machinery, engineering machinery, building materials machinery!

  • Co101 high chromium cast iron surfacing wire 

 

  • Hardness of surfacing layer HEC48-54
  • Main features and uses:

The surfacing layer has good oxidation resistance and cavitation resistance, high hardness and good wear resistance. It is used for surfacing welding of small shafts of cone bit, coal hole excavator, crusher rollers, mixed blades and other occasions requiring strong wear resistance and oxidation resistance.

  • Co103 High Chromium Cast Iron Surfacing Wire
  • Hardness of surfacing layer HEC58-64
  • Main features and uses:

The surfacing layer has excellent oxidation resistance and cavitation resistance, high hardness and good wear resistance. Mainly used for surfacing welding applications requiring wear resistance, oxidation resistance or cavitation resistance, such as bucket teeth, pump sleeves, exhaust blades, valves, etc. Hardness HRC: 50-54 (room temperature)

  • Co106 Cobalt based surfacing welding wire
  • Main chemical constituents:

C0.9-1.4 Mn < 1.0 Si0.4-2.0 Cr26-32 W3.5-6.0 Fe < 2.0 Co residue

  • Hardness of surfacing layer HRC:40-45
  • Main features and uses:

Co106 Co-based surfacing wire is one of the lowest C and W contents and the best toughness in Co-Cr-W surfacing alloy. It can withstand the impact of cold and hot conditions, has a small tendency to produce cracks, and has good corrosion resistance, heat resistance and wear resistance. Mainly used for maintaining good wear and corrosion resistance at high temperature, such as high temperature, high pressure valves, hot shear blades, hot forging dies, etc.

  • Co112 Cobalt based surfacing welding wire
  • Main chemical constituents:

C1.2-1.7 Mn < 1.0 Si0.4-2.0 Cr26-32 W7.0-9.5 Fe < 2.0 Co residue

  • Hardness of surfacing layer HRC:45-50
  • Main features and uses:

Co112 cobalt-based surfacing wire has medium hardness and better wear resistance than Co111 in Co-Cr-W surfacing alloy, but its plasticity is slightly worse. It has good corrosion resistance, heat resistance and wear resistance, which can be maintained at about 650 C. Mainly used for surfacing welding of high temperature and high pressure valves, internal combustion engine valves, high pressure pump sleeves, liner sleeves, hot roll pass, etc.

  • Co113 Cobalt based surfacing welding wire
  • Main chemical constituents:

C2.5-3.3 Mn < 1.0 Si0.4-2.0 Cr27-33 W15-19 Fe < 2.0 Co residue

  • Hardness of surfacing layer HRC:55-60
  • Main features and uses:

Co113 cobalt-based surfacing wire has high hardness and good wear resistance, but poor impact resistance. It is prone to crack during surfacing. It has good corrosion resistance, heat resistance and wear resistance, which can be maintained at about 650 C. It is mainly used for surfacing welding of cone bit bearings, rotating blades of boilers, edges of crushers, screw feeders, etc.

  • Co113G Cobalt based surfacing welding wire
  • Main chemical constituents:

C3.2-3.55 Mn < 1.0 Si0.5-1.1 Cr24-28 W12-16 Fe < 2.5 Co residue

  • Hardness HRC of surfacing layer: > 54
  • Main features and uses:

The surfacing layer has excellent wear resistance, heat resistance and corrosion resistance. It can also maintain these characteristics at 800 C. The single impact toughness is poor and it is sensitive to the temperature of the surfacing layer. The metallographic structure is eutectic and coarse composite carbide. Mainly used for surfacing welding of pump sleeve and rotary seal ring, wear panel, bearing sleeve, high temperature hot roll, oil field drill bit, etc.

  • Co113Ni Cobalt based surfacing welding wire
  • Main chemical constituents:

C1.5-2.0 Si0.9-1.3 Cr24-27 W11.5-13 Fe0.85-1.35 Ni21-24 Co residue

  • Hardness of surfacing layer HRC:37-40
  • Main features and uses

The welding wire reduces the carbon content properly and adds more Ni and Fe alloying elements, thus improving the toughness and comprehensive mechanical properties of surfacing layer. It is mainly used for surfacing welding of internal combustion engine valves and exhaust valves with high requirements of anti-cavitation and anti-corrosion performance.

  • Co114  Cobalt based surfacing welding wire
  • Main chemical constituents:

C2.4-3.0 Mn < 1.0 Si < 2.0 Cr27-33 W11-14 Fe < 2.0 Co residue

  • Hardness HRC of surfacing layer: > 52
  • Main features and applications:

High carbon Co-Cr-W alloy surfacing wire has good wear resistance and corrosion resistance. But the impact toughness is poor. It is mainly used for surfacing welding of wear parts such as cone bit bearings and boiler rotating blades.

  • Co115 Cobalt based surfacing welding wire
  • Main chemical constituents:

C1.5-3.5 Cr25-29 Mo5.0-6.0 Ni1.75-3.25 Co residue

  • Hardness HRC of surfacing layer: > 27
  • Main features and uses

The wire is a low carbon cobalt-chromium alloy strengthened by molybdenum. Its hardness is lower at room temperature, but it is improved after cold work. The surfacing layer has good high temperature corrosion resistance, impact resistance and high temperature strength.

  • Co116 Cobalt based surfacing welding wire
  • Main chemical constituents :

C0.7-1.2 Cr30.0-34.0 W12.5-15.5 Si < 1.0 Mn < 0.5 Fe < 1.0 Co residue

  • Hardness of surfacing layer HRC:46-50
  • Main features and applications:

It has high wear resistance and high temperature strength, but poor toughness. It has excellent corrosion resistance under sulfuric acid, phosphoric acid, nitric acid and other working conditions. Mainly used for surfacing of copper-based and aluminium-based alloys, such as hot-pressing die, etc.

  • Co117 Co-based Alloy Surfacing Wire
  • Main chemical constituents:

C2.30-2.65 Cr31.0-34.0 W16.0-18.0 Ni < 3.0 Si < 1.0 Mn < 0.5 Co residue

  • Hardness HRC of surfacing layer: > 53
  • Main features and uses

It has strong abrasion resistance and corrosion resistance, which can be maintained at 800 C. A stack for wear surfaces such as sleeves and rotary sealing rings of pumps

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