372
C. Mani et al.
Table 11.1 Chemical
composition
Composition
(Elements)
SS 316L
(Base
metal-1)
Monel 400
(Base
metal-2)
ENiCrFe-5
(Filer wire)
C
0.03
0.3
0.04
Cr
17
–
16
Fe
65.64
2.5
06–10
Mn
2
2
1
P
0.045
–
0.03
S
0.03
0.024
0.015
Si
0.75
0.5
0.35
Mo
2.5
–
–
Cu
0
31.67
0.5
Ti
–
–
Co
–
–
0.12
Ni
12
63
70(min)
Fig. 11.1 Weld Groove
Table 11.2 Weld parameters
and characteristics
Bevel angle
30°
Filler wire
ENiCrFe-5
Welding current
80 A
Root face thickness
1 mm
Root opening
2 mm
Polarity
DCEN
Welding speed
2.5 mm/s
Shielding (Argon)
8 LPM
Backing gas (Argon)
5–7 LPM
Tungsten size and type
1/8 , 2% throated tungsten