SK 420-O stainless steels
Classifications open arc flux cored wire
DIN 8555
MF 6-GF-55-C
Characteristics
Alloy depositing a martensitic steel containing 13 % Chromium giving a good resistance to
metal-to-metal wear and corrosion.
Microstructure: Martensite
Machinability: Good with cubic Boron Nitride tipped tools
Oxy-acetylene cutting: Cannot be flame cut
Deposit thickness: Depends upon application and procedure used
Field of use
Dredging pump casings, continuous casting rollers.
Typical analysis in %
C Mn Si Cr Mo Fe
0,4 0,7 0,2 13,5 0,2 balance
Typical mechanical properties
Hardness as welded: 54 HRC
Form of delivery and recommended welding parameters
Wire diameter (mm) Amperage Voltage Stick-Out
1,6 180 – 200 26 – 30 35 – 40
2,4 250 – 300 26 – 30 35 – 40
2,8 300 – 350 26 – 30 35 – 40
