Wire electrode for submerged arc welding often used for surfacing applications which need superior resistance to abrasion. It requires preheat and inter-pass temperatures of not less than 225ºC, followed by slow cooling. Post weld heat treatment is used to temper the weld deposit.
SFA 5.9: ER420 is similar to SFA 5.9: ER410, but with higher chromium and carbon content which increases the wear resistance.

Main Application

Chemical Composition (%)

Welding Positions:

Diameter

Smooth finish free from surface defects and foreign matter.

Base Materials

1.6 – 4.0 mm; sizes and tolerances acc. to ISO 544 and AWS A5.9.

Classification:
SFA 5.9: ER420

Wire Electrode Surface

Package Forms

AISI 420, X12Cr13: hardfacing results in higher hardness than with ER410.

Suitable fluxes: EN 760: SA AF 2 DC, WP 380

Flux type suitability is strongly dependent on its application. In combination with the wire electrode the most suitable flux should match the requirements of the plate material as closely as possible under the existing welding conditions. Further information can be obtained from the technical flux data sheets.

Coils, spools, drums and spiders as standard package forms for SAW-wire electrodes, different package forms on request.