Blue Max S309/309L
AWSER309
ER309L
Diameter (in)5/64
Diameter (mm)2.0
Package60 lb Coil
Product NumberED021445

Stainless

Blue Max® S309/309L is designed to be used primarily with basic fluxes that recover nearly all of the wire chromium in the deposit. Provides good resistance to hot cracking.

Advantage Lincoln
  • Designed to be used primarily with basic fluxes that recover nearly all of the wire chromium in the deposit
  • Provides good resistance to hot cracking
  • Q2 Lot® - Certificate showing actual deposit chemistry and calculated ferrite number (FN) available online
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Typical Application
  • For joining carbon or low alloy steel to austenitic stainless steels
  • Can also be used on “18-8” steels, since it overmatches the corrosion resistance, if the weldment will not be exposed to temperatures of 538 to 927°C (1000 to 1700°F)
  • ASTM A240 Type 309S
  • ASTM A743, A744 Types CF-8, CF-3

Conformance
  • AWS A5.9/A5.9M: 2006 ER309, ER309L
  • ASME SFA-A5.9: ER309, ER309L
  • ABS: ER309, ER309L
  • CWB/CSA W48-06: ER309, ER309L