E2209-16
Class: E2209-16
AWS: A5.4
Conforms to Certification: AWS A5.4 | ASME SFA 5.4
Weld Process: Shielded Manual Metal Arc
| AWS Chemical Composition Requirements | |
| C = 0.04 max | Si = 0.90 max |
| Cr = 21.5 – 23.5 | P = 0.04 max |
| Ni = 8.5 – 10.5 | S = 0.03 max |
| Mo = 2.5 – 3.5 | Mn = 0.5 – 2.0 |
| Cu = 0.75 max | N = 0.08 – 0.20 |
Application
DURAMAX E2209-16 has a nominal composition (wt.-%) of 22.5 Cr, 9.5 Ni, 3 Mo, 0.15 N. Electrodes of this composition are used primarily to weld duplex stainless steel, such as UNS S31803 and S32205. They are also used for lean duplex stainless steel, such as UNS S32101 and S32304. Weld metal deposited by these electrodes has “duplex” microstructure consisting of an austenite-ferrite matrix. Weld metal deposited by DM2209-16 combines increased tensile strength with improved resistance to pitting corrosive attack and to stress corrosion cracking, especially in environments containing hydrogen sulfide and chlorides. If post-weld annealing is required, this weld metal will require a higher annealing temperature than that required by the duplex base metal.
DM2209-16 is designed for applications with service temperatures up to 480°F (250°C) and down to -58°F (-50°C).
| Deposited Chemical Composition % (Typical) | ||
| C = 0.03 | Cr = 22.96 | Si = 0.72 |
| Ni = 8.95 | Mn = 1.64 | Mo = 3.09 |
| P = 0.024 | S = 0.002 | Cu = 0.055 |
| N = 1.73 | ||
| Deposited All Weld Metal Properties % | |
| (Typical) As-Welded | |
| Tensile Strength | 115,000 psi |
| Yield Strength | 90,000 psi |
| Elongation | 27% |
Deposited Charpy-V-Notch Impact Properties %
Not Applicable
Available Sizes & Recommended Welding Parameters |
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| Diameter | Voltage | Flat | Amperage Vertical & Overhead |
| 3/32 | 24-28 | 70-85 | 65-75 |
| 1/8 | 26-30 | 85-110 | 80-90 |
| 5/32 | 28-32 | 110-140 | 100-120 |
| 3/16 | 28-32 | 120-160 | 110-130 |