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Product name：KH-SLA
 
Classification：A5.13 / ECoCr-A
 
 

  1. KH-SLA is a co-based hardfacing electrode (equivalent to Stellite 6) and provides corrosion and oxidation resistance. It can be applied in service temperature up to 650°C. It possesses low stress abrasion resistance.
  2. It is suitable for high temperature abrasion with corrosive environment, such as high temperature valve seats, hot work tools, cutters, gas flow valves, turbine blades and hot press screws.
  3. It is generally applied in steel mill, chemistry, petrifaction and sugar industries.

 

Welding Instruction

(1) The dilution rate deteriorates the hardness and corrosion resistance.

(2) Dragging a 90-degree angle or a short arc can reduce the dilution of weld metal.

(3) Preheat and Int. temperature should be 400~500°C. Use slow cooling after welding to prevent cracks.

(4) Dry the electrodes at 200-250°C for 30-60 minutes before use.

 

Typical Chemical Composition of Weld Metal (wt. %)

C

Si

Mn

Cr

W

Fe

Co

1.050

0.93

1.20

30.00

3.78

1.63

bal.

Typical Hardness of Weld Metal

As-welded hardness（HRC）

High temperature hardness（HRC）

Continuous build-up

Interpass temp.

100°C

Preheat 200°C

Continuous build-up

300°C

400°C

500°C

39

42

38

40

38

34

Size and Suggested Operating Range (DC+)

Diameter x Length(mm)

3.2x350

4.0x400

5.0x400

Amp

90~120

120~150

140~170


No.8, Luke 3rd Rd., Luzhu Dist., Kaohsiung City 821, Taiwan (R.O.C.)      TEL:886-7-6955155      FAX:886-7-6955166

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