LOW ALLOY STEEL (High Temperature)
NEXA 9018-G
For Welding High Tensile Structural Steel
AWS A/SFA 5.5 E9018-G
Applications
- Welding of High tensile steels
- Pressure vessels, Boilers and heavy structures
- Joining ASTM SA 662/662M Gr.A/B/C
Characteristics
- Basic coated electrode
- Ni-Mn type low alloy steel weld
- Optimum combination of strength and impact toughness
- Radiographic weld deposit
- Suitable for welding medium high tensile structural steels, heavy sections
Chemical Composition
| C | Mn | Si | Ni | Mo |
|---|---|---|---|---|
| ~0.06 | ~1.7 | ~0.3 | ~1.5 | ~0.4 |
Mechanical Properties
| UTS (MPa) | YS (MPa) | EL% | CVN Impact (J) (-50℃) | Diffusible H2 |
|---|---|---|---|---|
| >620 | >530 | >17% | >35 | <5 ml/100 gm |
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.