CHINA ELECTRODE AND MACHINERY CO., LTD.
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Hard Surfacing Arc Welding Electrodes

CH-800V

CH-800V
CNS EH3C-B
JIS DF3C-B

Description¡G

CH-800V is an electrode which is air-harden able as it contains carbide forming elements such as Cr, Mo, W and V etc. It is designed for sharpness and durability of molds.

Application¡G

Hard surfacing of piercing form, dies and shears.

Instructions for welding :

  1. Preheating at more than 150¢J 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. Slow cooling is desirable after welding to avoid cracking.

  4. Dry the electrodes before use, at 300 ~ 350¢J for 60 minutes.
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Typical weld metal properties¡G (Weld Metal Analysis)

Carbon ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.75
Manganese ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.82
Silicon ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.65
Chromium ¡K¡K¡K¡K¡K¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K¡K¡K 5.10
Molybdenum ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.. 0.85
Vanadium ¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K...0.97
Tungsten ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K. 1.15

Hardness of weld metal:

650 ~ 800 V.H.N. ( HRC: 60 ~ 65 )

Available diameter and recommended operating ranges¡G
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¡@ 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 power¡GA.C. or D.C.E.P.
Approvals¡G
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Last modified: 2007-10-09