KF-810/KCH-17-SX

KCH-17-SX and KF-810 are a submerged arc flux-cored wire and a flux which produces a low carbon, low alloy weld deposit with a typical hardness of 35 HRC.

▎Classification

AWS –
JIS –
EN 14700UP3-GF-350-P
GB –

▎Applications and Features

  • KCH-17-SX and KF-810 are a submerged arc flux-cored wire and a flux which produces a low carbon, low alloy weld deposit with a typical hardness of 35 HRC.
  • It provides not only good metal-to-metal abrasion resistance but also good resistance to compression and cold work deformation. The impact resistance is excellent and the crack susceptibility is low.
  • There is no hot crack for multi-layer build-up up to 20 mm.
  • The weld metal can be machined and cut after welding.
  • It is suitable for repairing crane wheels, idlers and mine car wheels.

▎Welding Instruction

  • The hardness of weld metal will decrease when the temperature of stress relief exceeds 480°C.
  • The preheat and interpass temperature should be controlled between 200-400°C for massive work pieces and high curvature surface to prevent weld cracking caused by high stress.

▎Applications

It is suitable for repairing crane wheels, idlers and mine car wheels.

▎Typical Chemical Composition of Weld Metal (wt.%)

CSiMnCrMo
0.080.602.603.00.8

▎Typical Hardness of Weld Metal

1st layer2nd layer3rd layer
Hardness(HRC)26-3030-3534-38

▎Size and Suggested Operating Range (DC+)

Size (mm)Voltage (V)Current(A)ESO(mm)
3.230-32380-40025-30

▎Classification