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.