C-Mn STEEL (Low Hydrogen)
NEXA 7018-G
Excellent Sub Zero Temp. Properties
AWS A/SFA 5.1 E7018-G
Applications
- Ammonia storage tanks
- Horton spheres, Pressure vessels
- Si-Mn steels
- Steels containing Ni upto 1%
- For mild steel and heavy joints at subzero temperatures
- Joining ASTM SA 515/515M Gr.60/65, SA 516/516M Gr.60/65 steels
Characteristics
- Basic type iron powder electrode
- Deposition efficiency approx 110%
- Exhibit excellent impact at subzero temperatures
- All position capability
Chemical Composition
| C | Mn | Si |
|---|---|---|
| 0.1 | 1.3 | 0.5 |
Mechanical Properties
| UTS (MPa) | YS (MPa) | EL% | CVN Impact (J) (-50℃) |
|---|---|---|---|
| >490 | >390 | >22% | >47 |
Welding Currents (AC (70 OCV)/DCEP)
| 2.5 x 350 mm | 3.15 x 450 mm | 4.0 x 450 mm | 5.0 x 450 mm |
|---|---|---|---|
| 60-100 | 90-120 | 140-180 | 180-240 |
Product Specifications
Current Type
AC (70 OCV)/DCEP
Welding Positions
Packaging
- Standard carton packing of 20 kg box containing 4 cartons of 5 kg each.
Conditions (Pre-Drying)
- 250-300°C for minimum 1 hr.