Product name:KMS-420
 
Classification:ER420
 
 

Applications and Features

 

( 1 ) Weld metal is martensitic structure with 13%Cr.

( 2 ) Weld metal is higher hardness than 410 due to more carbon content.

( 3 ) Suitable for build-up in corrosion resistant workpiece.

 

Welding Position

 

 

Welding Instruction

 

( 1 ) Use Ar+1~2%O2 for spray transfer and Ar+1~2%CO2 for short-circuit transfer.

( 2 ) For other instructions, please refer to Appendix B and F.

 

Typical Chemical Composition of Weld Metal (wt%)

 

C

Si

Mn

P

S

Cr

 

0.31

0.42

0.52

0.014

0.012

13.32

 

Typical Mechanical Properties of Weld Metal

 

Tensile Strength

N/mm2

Hardness

HRC

 

-

50

Size and Suggested Operating Range (DC+)

 

Diameter (mm)

0.8

0.9

1.0

1.2

1.4

1.6

 

Ar+1~2%CO2

Current (A)

40~120

60~140

80~160

100~210

-

-

 

Voltage (V)

15~20

15~21

16~22

17~22

-

-

 

Ar+1~2%O2

Current (A)

160~210

170~260

180~280

200~300

210~320

220~330

 

Voltage (V)

24~28

24~30

24~30

24~30

24~32

24~32

 

 


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