Description:
MIG ER80S-B2 is a 1.25% Cr/0.5% Mo alloyed wire intended for MIG/MAG welding creep-resisting steels of similar composition, used in power generation plant operating at temperatures up to 570°c, e.g. DIN 13 CrMo 44, GS-17 CrMo 55, BS 3604 Grades 620 and 621 etc. Also suitable for use in the chemical and petrochemical industries where resistance to hydrogen attack, corrosion from sulphur-bearing crude oil and stress corrosion cracking in sour environments is required. Preheat and interpass temperature of 150-200°C is recommended. Post-weld heat treat at 690°c. The wire analysis conforms to the AWS 80S-B2 classification.
Welding Current: DC+
Wire Composition, wt.%
|
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
Cu
|
| Min |
|
0,40 |
0,40 |
|
|
1,20 |
|
0,45 |
|
| Typical |
0,07 |
0,55 |
0,60 |
0,010 |
0,010 |
1,35 |
0,05 |
0,55 |
0,15 |
| Max |
0,08 |
0,70 |
0,70 |
0,025 |
0,025 |
1,50 |
0,20 |
0,65 |
0,35 |
Shielding Gas:
Acc. to EN 439
C1, 100% CO2, 7-10 l/min
M21, 80% Ar +20% CO2, 7-10 l/min