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.