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Product name：KF-810/KCH-420-SX
 
Classification：-
 
 

  1. Weld metal has chemical composition that conforms AISI 420 martensitic stainless steel.
  2. It provides good slag removal, excellent crack resistance and unlimited deposition thickness.
  3. It is suitable for the reclamation of continuous casting rolls, blast furnace domes, print rolls and gudgeon.

Welding Instruction
  1. Please preheat at 200~250°C when the carbon content of the carbon steel work piece is over 0.8 wt% or the low alloy steel work piece is over 0.35wt%.
  2.  Preheat and interpass temperatures should be controlled between 200-250°C for massive work pieces and high curvature surface to prevent weld cracking caused by high stress.

Typical Chemical Composition of Weld Metal (wt %)

C

Si

Mn

Cr

0.210

0.55

1.25

13.2

Typical Hardness of Weld Metal

 

1st layer

2nd layer

3rd layer

4th layer

Hardness（HRC）

43.9

46.8

47.1

48.1

Size and Suggested Operating Range (DC+)

Size (mm)

Voltage （V）

Current（A）

ESO（mm）

3.2

30~32

400~450

25~30


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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