LOW ALLOY WEATHERING STEEL ELECTRODE
NEXA 8018-W2
For Welding of Withering Steel
AWS A/SFA 5.5 E8018-W2
Applications
- Welding of weathering steels e.g. CORTEN-A and CORTEN-B and their equivalents
- Bridges, Architectural structures, Exhaust gas flues, Chimneys
- Suitable for ASTM A36, A 283, Gr.B/c
Characteristics
- Basic type iron powder electrode
- Cr-Ni-Cu type low alloy steel welds
- High crack resistance under restraint
- Radiographic quality weld deposit
- Exhibits excellent atmospheric corrosion resistance compared to normal steels
- All position capability
Chemical Composition
| C | Mn | Si | Ni | Cr | Cu |
|---|---|---|---|---|---|
| <0.12 | 0.5-1.3 | 0.35-0.8 | 0.4-0.8 | 0.45-0.7 | 0.3-0.75 |
Mechanical Properties
| UTS (MPa) | YS (MPa) | EL% | CVN Impact (J) (-20℃) | Diffusible H2 |
|---|---|---|---|---|
| >550 | >460 | >19% | >27 | <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 | 190-250 |
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.