Welding wire

ER308LSi stainless MIG/MAG wire

Joining common 304-family stainless steels with a continuous wire.

Classification
AWS A5.9: ER308LSi
Processes
MIG/MAG (GMAW)
Materials
304 stainless steel · 304L stainless steel

How to choose it

The increased silicon content helps the weld pool spread. Use a stainless-compatible gas selected for the transfer mode.

Limits and product details

Do not assume it is the matching filler for 316L, duplex steel or every dissimilar joint. Control fumes and avoid carbon-steel contamination.

Additional details

Form
Solid stainless wire
Material match
Manufacturer lists 304 and 304L
Gas choice
Miller's stainless RMD example uses a helium/argon/CO₂ trimix or 98% argon / 2% CO₂
Example source
Lincoln Electric Blue Max MIG 308LSi

References

Information checked 2026-10-14.

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