CHINA ELECTRODE AND MACHINERY CO., LTD.

@

Hard Surfacing Arc Welding Electrodes

CH-80

CNS EH3C-B
JIS DF3C-B

DescriptionG

CH-80 is a low hydrogen type electrode which has high hardness. These electrodes are martens tic structure, which contains C, Cr and Mo. It has high hardness, so it is suitable for intense soil abrasion. The deposited metal is not machinable as welded condition.

ApplicationG

Hard surfacing of pump casings, cutter knives pump impellers, worn parts on farm equipment, forestry tools, and loading machines.

Instructions for welding :

  1. Preheating at more than 150J is required.

  2. It is recommended to under lay with low hydrogen type electrodes (C-76), in case the base metal is very harden able or multi-layer welding is required.

  3. Post heat at 500 ~ 600J and slow cooling are recommended.

  4. Dry the electrodes before use, at 200 ~ 250J for 60 minutes.
    @

Typical weld metal propertiesG (Weld Metal Analysis)

Carbon KKKKKKKKKKKKKKKKKKKKKK 0.75
Manganese KKKKKKKKKKKKKKKKKKKK 0.82
Silicon KKKKKKKKKKKKKKKKKKKKKK 0.65
Chromium KKKKKKK..KKKKKKKKKK.KKK 5.10
Molybdenum KKKKKKKKKKKKKKKKKKK.. 0.85
W KK..KKKKKKKKKKKKKKKKKK..1.15
Tungsten KKKKKKKKKKKKKKKKKKKKK. ----

Hardness of weld metal:

650 ~ 800 V.H.N. ( HRC: 60 ~ 64 )

Available diameter and recommended operating rangesG
@

@ F. & H. V fillet @
3.2 X350 m/m
4.0 X400 m/m
5.0 X400 m/m
  90 ~ 120 Amps
140 ~ 180 Amps
190 ~ 240 Amps

 

Type of powerGA.C. or D.C.E.P.
ApprovalsG

Send mail to cemc@ms24.hinet.net with questions or comments about this web site.
Last modified: 2007-10-09