DAIKOSTRIP 430

ESW, SAW
  • FERRITIC - MARTENSITIC STAINLESS STEEL
430

Description

Ferritic 17%Cr strip designed for multi-layers cladding of the 410 family alloys.
It can be used in SAW or ESW process to obtain alloy 410 NiMo. The strip is used mainly for repair and maintenance applications. In combination with DAIKOFLUX is giving a weld metal with 14Cr-4Ni-1Mo and a hardness of 370-420 HB. Mainly used for continuous casting rolls, milling rolls, hardfacing applications in steelworks and similar.
Specifications
ISO 14343-B
BS430
AWS A5.9
EQ430
DIN
-
Werkstoff Number
-
Certifications
-
Shielding
DAIKOFLUX 940, 942AS, 944
Positions
PA
Current
DC+
Asme qualifications
F-No (QW432)
6
A-No (QW442)
7

Ferrite

-

Pren

16.6

Hardness

220HB - 250HB
Chem. Comp. %
DEFAULT
C
0.015
Mn
0.3
Cr
16.6
P
0.025
S
0.005
Si
0.35
Mechanical Properties
min
variant
Tensile strength Rm MPa
450
530
Yield strength Rp0.2 MPa
300
410
Elongation A (L0=5d0) %
15
25
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
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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