STARBLAZE PRIME 7018 W1
AWS A5.5: E7018-W1 | DIN EN ISO 2560-A: E 42 2 B 3 2
Superior Corrosion Resistance, Weathering Steel Welding, Low Hydrogen Performance
A specially designed low hydrogen, moisture-resistant basic coated electrode with chromium, nickel, and copper alloy additions for welding weathering and corrosion-resistant structural steels. StarBlaze PRIME 7018 W1 provides excellent weldability in all positions, easy slag removal, finely rippled smooth weld beads, and radiographic quality weld deposits. Designed specifically for weathering steel applications such as CORTEN® steels and their equivalents, it delivers excellent atmospheric corrosion resistance while maintaining superior mechanical properties and low diffusible hydrogen levels.
Available Packs
Dimensions: 2.50 mm x 350 mm, 3.15 mm x 450 mm, 4.00 mm x 450 mm, 5.00 mm x 450 mm
Pack Sizes: 2.5 Kg Vacuum Pack, 4 Kg Box, 5 Kg Box
Master Box: 20 Kg, 30 Kg, 40 Kg, Customisable packaging available on request
Superior corrosion resistant weld deposits
Low hydrogen basic coating
Moisture-resistant electrode coating
Designed for weathering steels
Excellent all-position weldability
Radiographic quality welds
Easy slag removal
Finely rippled smooth weld beads
Low diffusible hydrogen content (≤4 ml/100g)
Excellent atmospheric corrosion resistance
Suitable for AC and DC+ polarity
Bridge Construction
Railway Infrastructure
Structural Steel Fabrication
Transmission Towers
Industrial Buildings
Architectural Steel Structures
Weathering Steel Fabrication
Infrastructure Projects
Manual Metal Arc Welding (MMA/SMAW)
Weathering steel welding
Structural steel fabrication
Bridge fabrication and erection
Corrosion-resistant steel welding
General fabrication and maintenance welding
All-position welding applications
Specially developed for weathering-type structural steels
Suitable for CORTEN-A and CORTEN-B steels
Suitable for ASTM A242 weathering steel
Suitable for ASTM A588 weathering steel
Chromium, nickel, and copper alloy additions improve corrosion resistance
Produces radiographic quality weld deposits
Excellent atmospheric weathering performance
Keep dry and avoid condensation
Re-drying generally not required
If necessary, re-dry at 300–350°C for 1 hour
Product Details
Typical Chemical Composition (%)
| C | Si | Cu | Mn | Cr | Ni | P | S |
| 0.07 | 0.50 | 0.50 | 0.50 | 0.20 | 0.35 | 0.020 | 0.015 |
Typical Mechanical Properties (All Weld Metal)
| Yield Strength Rp (N/mm²) | Tensile Strength Rm (N/mm²) | Elongation A5 (%) | Charpy Impact Value ISO-V J at -20°C |
| ≥ 420 | ≥ 520 | ≥ 28 | ≥ 47 |
Diffusible Hydrogen
| Property | Value |
| Diffusible Hydrogen (per 100g weld metal) | ≤ 4 ml |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 60-90 |
| 3.15 | 100-140 |
| 4.00 | 140-180 |
| 5.00 | 190-250 |
