Suitable welding positions
For hard facing (Hv550~700)
Hardfacing for wear plate and weld metal's hardness should be about Hv 550~700
Classifications
JIS Z 3326 : YF3B-C-600
Description
It is designed for welding of metal to metal and underlying welding of hard-facing
Typical applications include crane wheels, blower blades, bucket lips, dredge parts etc
In order to minimize cracking, one should obey the preheat and interpass temperature
Polarity & shielding gas
CO2: 100% CO2 (15~25 /min)
DCEP (DC+)
Typical chemical composition of all-weld-metal (%)
Shielding gas
C
Si
Mn
P
S
Cr
Mo
CO2
0.34
2.8
0.5
0.013
0.009
6.5
0.5
Typical mechanical properties of all-weld-metal
Typical value
Interpass
Hv
HRC
Hs
Temp(C )
Remarks
Example (CO2)
550~700
52~60
69~81
200
As weld
*Composition and hardness depend upon dilution. Single layer deposit
hardness depend upon base metal and/or build-up material.