Mig Welding Wire
ER2209

Classifications
DESCRIPTIONS Stainless Steel
AWS AWS A5.9 ER2209
 
Mechanical Properties
TENSILE 770 MPa
YIELD 550 MPa
ELONGATION 30%
IMPACTVALUE 150 Joules
Min Tensile 550MPa
Min Yield Strength 450MPa
Min Elongation 20
amp10 180-220
amp12 200-240
Pack Size 12,5Kg
Shield Gas Ar 2% O2 or Ar + 2-3% CO2
Heat Input 0.5-2.5 Kj/mm
Scaling Temperature Approx. 850°C (air).
Corrosion Resistance Very good resistance to pitting and stress corrosion cracking in chloride containing environments.
Chemical Analysis
Carbon 0.02
Manganese 1.6
Silicone 0.5
Chromium 23.0
Molybdenum 3.1
Nickel 8.5
Nitrogen 0.17

Welding Position

Characteristics
ER2209 is primarily designed for welding the duplex grade 2209 and similar steel grades, but it can also be used for welding SAF 2304 type of steels. ER2209 provides a ferritic-austenitic weldament that combines many good properties of both ferritic and austenitic stainless steels. Due to high content of both Cr and Mo a very good resistance to general and pitting corrosion is obtained. The duplex micro-structure gives a high tensile strength and hereby also an excellent resistance to stress corrosion cracking. Er2209 is over alloyed with respect, to ensure the right ferrite balance in the weld metal.

Procedures
The weldability of ER2209 is excellent and welding can be performed using short, spray or pulse arc.Welding using pulsed arc provides good results in both horizontal and vertical up positions . The best flexibility is achieved by using pulsed arc and 1.2mm wire.