DAIKOWS 4122

SAW
  • FERRITIC - MARTENSITIC STAINLESS STEEL
4122

Description

Martensitic harfacing solid wire
Hard martensitic stainless steel deposit for wear resistance surfacing and for high-grade buildups on non-and low alloyed base steels and tool steels. The deposit has a high wear resistance also at elevated temperatures as well as a good resistance against water, steam and diluted organic acids and is scale resistant up to 900° C. Clean welding area to metallic bright. Typical applications include continuous caster rolls, moulds for ceramic industries, sealing faces on fittings, plungers and claddings on rotors.
Specifications
Werkstoff Number
1.4122
Shielding
DAIKOFLUX 493-W
Positions
PA, PB, PC
Current
DC/AC
Packaging Type
K415 spool and drums.

Pren

20.96

Hardness

48HRC - 52HRC
Chem. Comp. %
DEFAULT
C
0.4
Mn
1
Ni
1
Cr
17
P
0.02
S
0.02
Mo
1.2
Si
0.6
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
750
Yield strength Rp0.2 MPa
-
55
Elongation A (L0=5d0) %
-
12
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
2.4 mm
Ampere
250A - 420A
Voltage
28V - 32V
Packaging
Ø 2,0÷4,0mm
Packaging Type
K415 spool and drums.
Anti-wear Characteristics
Adhesive wear
Abrasive wear
Impact
Corrosion
Heat
Description

Application

Exhibiting impressive wear resistance, even at elevated temperatures, the martensitic welding deposit offers excellent durability against water, steam, and diluted organic acids. Maintaining scale resistance up to 900°C, it is well-suited for premium buildups and weld overlays on non- and low-alloyed base steels, as well as tool steels. Applications range from sealing faces on fittings, plungers, and claddings on rotors to continuous caster rolls and molds in ceramic industries. Selected based on carbon content, martensitic stainless steels find utility for their corrosion resistance and high strength in diverse applications like pumps, valves, and boat shafts. They are also valued for their wear resistance in cutlery, medical tools (scalpels, razors, and internal clamps), ball bearings, razor blades, injection molds for polymers, and brake disks for bicycles and motorbikes. To achieve a metallic bright finish, maintaining a clean welding area is essential. Preheating temperature ranges from 150 to 400°C, depending on the workpiece size and base material. Slow cooling and, if necessary, tempering should be applied.

Alloy Type

Martensitic steel for wear and corrosion resistant hardfacings.

Microstructure

The microstructure comprises tempered martensite and some carbide.

Materials

Surfacing can be performed on all weldable base materials, unalloyed and low-alloyed. Welding of corrosion resistant chromium steels as well as other similar-alloyed steels with C-contents up to 0.20% (repair welding).
EN W.Nr.: 1.4122 (39CrMo17-1), 1.4113 (6CrMo17-1), 1.4513 (2CrMoTi17-1).
ASTM: 440C, 434, 436.
UNS: UNS S S43400, 43600.

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