E71T-9C/9M
Alloy Type: A5.20, CARBON STEEL Flux Cored Arc Welding Electrodes
E71T-9C/9M is a gas shielding flux-cored wire for 490MPa high strength steel, can use both CO2 and 75-80%Ar+20-25% CO2 shielding gas. Outstanding all position weldability, few spatter, soft and stable arc, thin slag, easy slag removal, great penetration, high x-ray passing rate.
Typical Applications: Suitable for welding in shipbuilding, off-shore platform, steel structure, boiler and engineering machinery.
| AWS Class: E71T-9C/9M
|
Certification:
A5.20 E71T-9C/9M |
| AWS A5.20M |
| Welding Position:
F, V, OH, H |
Current:
DCEP |
Typical Chemical Composition of Weld Metal (single values are maximum)
| Alloy wt% | C | Mn | Si | Cr | Ni | Mo | P | S | V |
| AWS | 0.120 | 1.75 | 0.90 | 0.20 | 0.50 | 0.30 | 0.030 | 0.030 | 0.08 |
| CO2 | 0.045 | 1.15 | 0.40 | 0.02 | 0.01 | 0.01 | 0.013 | 0.005 | 0.01 |
| Mixed | 0.050 | 1.20 | 0.45 | 0.02 | 0.01 | 0.01 | 0.012 | 0.005 | 0.01 |
Typical Mechanical Properties of Weld Metal (single values are maximum)
| Mechanical Property | Y.S (MPa) | T.S. (MPa) | El(%) | CVN (J/°C) |
| AWS | 390 | 490-670 | 22 | 27/-30 |
| Co2 | 490 | 560 | 26 | 60/-30 |
| Mixed | 520 | 585 | 28 | 80/-30 |
Sizes Available and Recommended Parameters
| Dia/mm | 1.2 | 1.4 | 1.6 |
| Volt | 23-34 | 24-42 | 25-46 |
| Amp | 150-320 | 170-400 | 200-450 |
| Stick-out (mm) | 15-20 | 15-20 | 18-25 |
| Gas flow (l/min) | 20-25 | 20-25 | 15-25 |