ER2209
Class: ER2209
AWS: A5.9
Conforms to Certification: AWS A5.9 | ASME SFA A5.9
Weld Process Used for Mig: (GMAW) and Submerged Arc (SAW)
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 |
|
Diameter X Spool Sizes | Diameter X Coil Sizes |
.025 x 2#, 10#, 25# | 1/16 x 60# & mill coil |
.030 x 2#, 10#, 25#, 30#, 33# | 5/64 x 60# & mill coil |
.035 x 2#, 10#, 25#, 30#, 33# | 3/32 x 60# & mill coil |
.045 x 2#, 10#, 25#, 30#, 33# | 1/8 x 60# & mill coil |
1/16 x 10#, 25#, 30#, 33# | 3/16 x 60# & mill coil |
5/32 x 60# & mill coil |
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 Mig using Argon + 2% oxygen as the shielding gas. Data on sub-arc is not presented, as sub-arc is dependent on the type of flux used.
Recommended Welding Parameters |
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GMAW “Mig Process” | Reversed Polarity | |||||
Wire Diameter | Wire Feed | Amps | Volts | Shielding Gas | Gas CFH | |
Short Arc Welding | .030 | 13-26 | 40-120 | 16-20 | Argon+2% O2 | 25 |
.035 | 13-26 | 60-140 | 16-22 | Argon+2% O2 | 25 | |
Spray Arc Welding | .035 | 20-39 | 140-220 | 24-29 | Argon+2% O2 | 38 |
.045 | 16-30 | 160-260 | 25-30 | Argon+2% O2 | 38 | |
1/16 | 10-16 | 230-350 | 27-31 | Argon+2% O2 | 38 |
Other shielding Gases may be used for Mig welding. Shielding gases are chosen taking Quality, Cost, and Operability into consideration
Recommended Welding Parameters |
||
SAW “Submerged Arc Welding Process” | Reversed Polarity Suggested | |
Wire Diameter | Amps | Volts |
3/32 | 250-450 | 28-32 |
1/8 | 300-500 | 29-34 |
5/32 | 400-600 | 30-35 |
3/16 | 500-700 | 30-35 |
Both Agglomerated and fused fluxes can be used for submerged arc welding.
Note: The chemical composition of the flux mainly affects the chemistry of the weld metal and consequently its corrosion resistance and Mechanical properties.