AWS A5.9 ER308L
Welding Wire ER308L
AWS A5.9 ER308L is ultra-low C-18Cr-8Ni, H00Cr21Ni10 is MIG wires that are widely used in welding austenitic stainless steel and it is all position welding. The weld-ability is good. Feeding wire smoothly will enable stable arc, excellent welding performance and spatter is very low. Ferrite in the deposited metal enables excellent corrosion-resistance and crack-resistance.
MIG welding wire AWS A5.9 ER308L
Application
AWS A5.9 ER308L is widely used in petrochemical, pressure vessel, food processing machinery, medical equipment, chemical fertilizer equipment, textile machinery, nuclear reactor such as 022Cr19Ni10 (SUS 304L) and other materials of welding.
Chemical Composition (%)
Reference Current (DC+)
Welding Positions:
Notes:
1. Shield gas: Must ensure not to operate with impurity shield Gas.
Recommendation Rate of mixed gas: Ar+1-3%O2.
2. Operation flow rate of shield gas: 20-25L/min.
3. Electrode extension: 15-25mm
4. The welding should be operated in clean surface without rust, moist, oil contamination and dust.
5. Prevent affected of wind when wind speed reach 1.5m/s to avoid bubbles generated.
The above suggestions are for reference purpose. Evaluate and determine the situation of the scene before starting the wielding process.
Mechanical Properties of Deposited Metal (Ar+20%CO2 Gas shielded)
|
Chemical Composition
|
C
|
Mn
|
Si
|
Cr
|
Ni
|
Mo
|
P
|
S
|
Cu
|
|
Guarantee Value
|
≦0.030
|
1.00~2.50
|
0.30~0.65
|
19.50~22.00
|
9.00~11.00
|
≦0.75
|
≦0.030
|
≦0.030
|
≦0.75
|
|
General Result
|
0.023
|
1.63
|
0.40
|
20.12
|
10.35
|
0.37
|
0.013
|
0.009
|
0.16
|
Test Item |
Rm(N/mm2) |
Rel/Rpo.2(N/mm2) |
A (%) |
KV2(J)-40℃ |
Guarantee Value |
≧790 |
≧690 |
≧17 |
≧27 |
General Result |
840 |
730 |
24.5 |
85、93、75 |
|
Diameter (mm)
|
Φ0.8
|
Φ1.0
|
Φ1.2
|
|
Welding Current (Amps)
|
70~150
|
100~200
|
140~220
|
