DAIKOMCW 430

FCAW
  • FERRITIC - MARTENSITIC STAINLESS STEEL
430

Description

Metal cored wire for 430 martensitic stainless steels
Virtually spatter free in the spray-arc range this wire deposits a ferritic stainless steel with good ductility in heat treated condition. Application include welding of similar parental metal, weld overlay and thermal spraying. Welding with this filler metal usually requires preheating and post weld heat treatment. Optimum mechanical properties and corrosion resistance are obtained only when the weldment is heat treated following the welding operation. The weld profile is easily controllable making this wire well suited for gap bridging and positional welding.
Specifications
ISO 14700
T Fe 8
Shielding
M21
Positions
PA, PB, PC
Current
DC+
Packaging Type
BS300 spool

Pren

17

Hardness

220HB - 250HB
Chem. Comp. %
DEFAULT
C
0.05
Mn
0.15
Ni
0.1
Cr
17
Nb
0.75
P
0.01
S
0.02
Si
0.4
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
540
Yield strength Rp0.2 MPa
-
390
Elongation A (L0=5d0) %
-
26
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
1.2 mm
1.6 mm
Ampere
120A - 290A
180A - 350A
Voltage
20V - 30V
30V - 34V
Packaging
Ø 1,2÷1,6mm
Ø 1,2÷1,6mm
Packaging Type
BS300 spool
BS300 spool
430
Description

Application

This is a ferritic stainless steel exhibiting good ductility in the heat-treated condition. Applications include welding similar parent metal, weld overlay, and thermal spraying, with a primary use in surfacing sealing faces of gas, water, and steam valves to achieve stainless and wear-resistant overlays. Welding with this filler metal typically necessitates preheating, normally 150°C, and postweld heat treatment for optimal mechanical properties and corrosion resistance. The balanced composition ensures sufficient chromium for corrosion resistance in usual applications while retaining ample ductility in the heat-treated state. Additionally, there are stabilized versions with Niobium and/or Titanium designed for the automotive industry, particularly in exhaust system production, requiring similar preheating and postweld heat treatment.

Alloy Type

Ferritic stainless steels.

Microstructure

Ferrite.

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.: 1.4001 (X7Cr14), 1.4006 (X12Cr13), 1.4057 (X17CrNi16-2), 1.4000 (X6Cr13), 1.4002 (X6CrAl13), 1.4016 (X6Cr17), 1.4059 (X17CrNi16-2), 1.4509 (X2CrTiNb18), 1.4510 (X3CrTi17), 1.4511 (X3CrNb17), 1.4512 (X2CrTi12), 1.4520 (X2CrTi17), 1.4712 (X10CrSi6), 1.4713 (X10CrAlSi7), 1.4724 (X10CrAlSi13), 1.4742 (X10CrAlSi18).
ASTM: 403, 405, 409, 410, 429, 430, 430Cb, 430Ti, 439, 431, 442.
UNS: S40300, S40500, S40900, S41000, S42900, S43000, S43035, S43036, S43100, S44200.

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