Welding Wire
ER2209 Duplex Stainless Steel Welding Wire
ER2209 is a duplex stainless steel welding wire for joining 2205-type duplex stainless steels, including UNS S31803, S32205 and EN 1.4462. It combines high strength with good resistance to pitting and chloride stress corrosion cracking. Available for TIG/GTAW and MIG/GMAW welding, ER2209 is used in oil & gas, offshore, chemical, marine and pressure piping applications.
ER2209 for 2205 Duplex Stainless Steel
ER2209 is a commonly specified filler wire for Duplex 2205 welding. Its 22Cr-9Ni-3Mo-N alloy system is designed for weld metal compatible with standard 2205 duplex stainless steels.
Typical matching materials include:
- Duplex 2205
- UNS S31803
- UNS S32205
- EN 1.4462 / X2CrNiMoN22-5-3
- ASTM A182 F51/F60
- Similar 22% Cr duplex grades
For critical applications, filler-metal selection should follow the base material, applicable code and qualified WPS.
TIG or MIG: Choosing the ER2209 Wire
ER2209 is available as TIG welding wire and MIG welding wire for Duplex 2205 applications.
TIG / GTAW: Straight filler rods are commonly used for pipe welding, root passes and precision fabrication. Argon shielding with DCEN polarity is commonly applied according to the WPS.
MIG / GMAW: Spool wire is used for production welding and higher deposition rates. DCEP polarity with a suitable argon-based shielding gas is commonly used.
For 2205 TIG welding wire or 2205 MIG welding wire, select the wire diameter and welding parameters according to joint design, material thickness and the approved WPS.
Applications
ER2209 welding wire is commonly used for fabrication, joining and repair of:
- Oil and gas piping
- Offshore equipment
- Chemical processing systems
- Pressure vessels and piping
- Marine and seawater equipment
- Desalination systems
- Duplex stainless steel process equipment
The wire is suitable where duplex weld metal requires a balance of strength and resistance to localized and chloride-related corrosion.
International Classifications
Standard / Market | Classification |
|---|---|
AWS A5.9 / ASME SFA-5.9 | ER2209 |
EN ISO 14343-A, TIG | W 22 9 3 N L |
EN ISO 14343-A, MIG | G 22 9 3 N L |
JIS Z3321 | YS2209 |
China | H03Cr22Ni8Mo3N |
The applicable designation should be confirmed according to the welding process and project specification.
Typical Chemical Composition
Element | Reference Range / Limit (%) |
|---|---|
C | ≤ 0.03 |
Si | ≤ 0.90 |
Mn | 0.5–2.0 |
P | ≤ 0.03 |
S | ≤ 0.03 |
Cr | 21.5–23.5 |
Ni | 7.5–9.5 |
Mo | 2.5–3.5 |
N | 0.08–0.20 |
Cu | ≤ 0.75 |
These are reference classification values. Actual chemistry may vary by manufacturer and production heat and should be confirmed by the applicable MTC.
Typical Mechanical Properties
Typical deposited weld-metal properties may include:
- Yield strength: ≥ 450 MPa
- Tensile strength: ≥ 550 MPa
- Elongation: ≥ 20%
Actual properties depend on welding process, shielding gas, heat input, test conditions and applicable standard.
Wire Sizes
Process | Common Sizes |
|---|---|
TIG / GTAW | 1.2–3.2 mm |
MIG / GMAW | 0.8–1.6 mm |
Other diameters can be supplied according to the welding application and order requirements.
What to Specify When Buying ER2209
When sourcing ER2209 filler wire or 2205 filler metal, confirm:
- Base material: 2205, S31803, S32205 or 1.4462
- Welding process: TIG/GTAW or MIG/GMAW
- Wire diameter
- AWS or EN classification
- Quantity and packaging
- MTC or certification requirements
For 2205, S31803 and S32205 welding, ER2209 is the key filler-metal designation to evaluate against the qualified welding procedure.
Supply from GD WELD
GD WELD supplies ER2209 Duplex Stainless Steel Welding Wire for industrial welding applications. Straight rods and spool wire are available in different diameters according to welding process and project requirements.
For quotation, provide the base material, welding process, wire diameter, applicable standard and required quantity.
Tags
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