SFA 5.9: ER420

Argon Arc Welding Wire

SFA 5.9: ER420

TIG welding wire,  SFA 5.9: ER420

Classification:

SFA 5.9: ER420

Characteristics and Application

SFA 5.9: ER420 is a solid wire rod for GTAW, often used for surfacing applications which need superior resistance to abrasion. It requires preheat and inter-pass temperatures ≥ 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.

Chemical Composition (%)

Welding Positions:

Mechanical Properties of Deposited Metal

Wire Electrode Surface

Package Forms

Diameter

Smooth finish free from surface defects and foreign matter.

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

Suitable fluxes: BF 38, 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.

1,6 - 2,4 mm; sizes and tolerances acc. to ISO 544 and AWS A5.9.

Base Materials

5 kg carton boxes as standard package form for GTAW wire rods.