ER2209

Class: ER2209
AWS: A5.9

Conforms to Certification: AWS A5.9 | ASME SFA A5.9

Weld Process Used for Tig: (GTAW)

AWS Chemical Composition Requirements
C = 0.03 max
Cr = 21.5 – 23.5
Ni = 7.5 – 9.5
Mo = 2.5 – 3.5
Mn = 0.50 – 2.0
Si = 0.90 max
P = 0.03 max
S = 0.03 max
Cu = 0.75 max
N = 0.08 – 0.20

Available Sizes
.030 x 36
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36

Application
ER2209 is intended to weld duplex stainless steels. It exhibits high tensile strength and resistance to stress and corrosion cracking. Exhibits a low ferrite.

Deposited Chemical Composition % (Typical)
C = 0.016 Mo = 2.91 P = 0.014
Cr = 22.40 Mn = 1.40 S = 0.017
Ni = 8.5 Si = 0.45 N = 0.18
Mechanical Properties (R.T.) 
Yield Strength 80,500psi
Tensile Strength 105,000psi
Elongation 26%

Deposited All Weld Metal Properties
Data is typical for ER2209 weld metal deposited by Tig using 100% Argon as the shielding gas.

Recommended Welding Parameters

GTAW “Tig Process”
Wire Diameter Amps DCSP Volts Shielding Gas
.035 60-90 12-15 Argon 100%
.045 80-110 13-16 Argon 100%
1/16 90-130 14-16 Argon 100%
3/32 120-175 15-20 Argon 100%

Note: Parameters for tig welding are dependent upon plate thickness and welding position.
Other shielding Gases may be used for Tig welding. Shielding gases are chosen taking Quality, Cost, and Operability into consideration.