General Description

ER2209 is a filler metal to weld duplex stainless steels such as UNS S31803 and S32205. The weld metal has a high tensile and yield strength. This alloy offers good resistance to stress corrosion cracking and pitting corrosion.

ER2209 is used for pipe work and general fabrication in the offshore oil, gas and chemical process industries.

Chemical Composition

Grade C% Cr% Ni% Mo% Mn% Si% P% S% N% Cu%
ER2209 Max 0.03 21.5-23.5 7.5-9.5 2.5-3.5 0.5-2.0 Max 0.9 Max 0.03 Max 0.03 0.08-0.2 Max 0.75

Available Product Forms

ER2209 is available on spool (Precision Layer Wound) and in cut straight lengths in different sizes as below:

Available in Diameters Length
Straight Rods(TIG)-inch .047 .062 .093 .125 36 or 39
Straight Rods(TIG)-mm 1.2 1.6 2.4 3.2 915 or 1000
Spooled Wire (MIG)-inch .030 .035 .040 .045 Spool
Spooled Wire (MIG)-mm 0.8 0.9 1.0 1.14 Spool


EQ2209 welding strip is also available.

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