G-TECH 430

SMAW
  • FERRITIC - MARTENSITIC STAINLESS STEEL
430

Description

 Rutile coated electrode
Its rutile-basic coating ensures an excellent combination of welding performance in all positions, except for vertical down, and a high resistance to cracking providing smooth arc transfer. Excellent weldability with a spatter free arc, self-releasing slag producing a very smooth bead appearance. Resistant to hot oxidation, specific for repairs and for coatings on continuous casting for steel mills, sliding guides, etc .
Specifications
ISO 3581-A
E 17 R 52
AWS A5.4
E430-16
DIN 8555
E 5-UM-200-PR
Werkstoff Number
-
Certifications
-
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+, AC
Asme qualifications
F-No (QW432)
4
A-No (QW442)
7

Ferrite

-

Pren

17

Hardness

220HB - 250HB
Chem. Comp. %
DEFAULT
C
0.11
Mn
0.7
Cr
17
Si
0.8
Mechanical Properties
min
variant
Tensile strength Rm MPa
450
500
Yield strength Rp0.2 MPa
300
420
Elongation A (L0=5d0) %
15
15
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
2.5 mm
3.2 mm
4 mm
5 mm
Ampere
50A - 80A
80A - 110A
100A - 160A
150A - 200A
Voltage
-
-
-
-
Packaging
53 pcs/kg
27 pcs/kg
19 pcs/kg
12 pcs/kg
Packaging Type
Carton box
Carton box
Carton box
Carton box
Anti-wear Characteristics
Adhesive wear
Abrasive wear
Impact
Corrosion
Heat
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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