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Product name：KH-CR30M
 
Classification：A5.13
 
 

  1. Weld metal is a chromium carbide structure with 30%Cr and 5%Mn.
  2. It has high amount of chromium carbide, high hardness, excellent hardness and abrasion resistance at high temperature.
  3. It provides excellent arc -restart, good bead appearance and almost no slag.
  4. It is suitable for repairing crusher plates, crusher teeth and mining screen.

 

Welding Instruction
  1. Dry the electrodes at 100-200°C for 30-60 minutes before use.
  2. Preheat temperature should be ≥ 250°C and PWHT should be 600°C.
  3. The surfacing should be limited to 2-3 layers.

 

Typical Chemical Composition of Weld Metal (wt. %)

C

Si

Mn

Cr

3.600

0.78

5.38

30.01

Typical Hardness of Weld Metal

        Hardness

Condition

Vicker’s hardness

（HV）

Rockwell’s hardness

（HRC）

Shore’s hardness

（HS）

As-welded

Interpass temp. ≤100°C

630

57

77

Continuous build-up

610

56

74

Heat treatment

Temperature (°C)

200

300

400

500

600

700

Vicker’s hardness

620

450

400

300

200

100

Size and Suggested Operating Range (AC or DC+)

Diameter x Length(mm)

3.2x350

4.0x350

5.0x350

Amp

90~140

140~190

190~250


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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