StarBlaze Prime 7018-G
AWS A5.5: E7018-G | DIN EN ISO 2560-A: E 42 5 B 32 H5
All-Position Arc Control | Heavy Structure Rated | X-Ray Quality Welds
A basic-coated, low hydrogen iron powder electrode engineered for demanding fabrication of high-strength steels, pressure vessels, and structures exposed to dynamic loading or mechanical restraint. Delivers a stable arc, smooth weld beads, and excellent slag removal across positional welding. Suitable for both as-welded and PWHT conditions, maintaining toughness at –50 °C.
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 Pouch, 5 Kg Box
Master Box: 20 Kg, Customisable packaging available on request
- Designed for welding high tensile steels and dynamic load structures
- Excellent arc stability and re-strike performance
- X-ray quality welds with smooth bead and easy slag removal
- Reliable impact strength down to –50 °C
- Suitable for both as-welded and stress-relieved joints (620 °C x 1hr)
- Performs well in positional welding on heavy wall components
- Earthmoving & Heavy Equipment Fabrication
- Boiler and Pressure Vessel Manufacturing
- Pipe Spools & Tube Welding (SA516, SA106, SA333)
- Structural Fabrication with Dynamic Load Design
- Power Generation and Transmission Infrastructure
- Manual Metal Arc Welding (MMA / SMAW)
- Operates on both AC and DC+ polarity (~90V OCV recommended)
- Suitable for all-position welding (PA, PB, PC, PG, PF, PE)
- Designed for root-to-cap welding in high-strength steel joints
- Compatible with post-weld heat treatment at 620 °C for 1 hour
- Base materials:
• S(P)235–S(P)360, GP240–GP280
• SA516 Gr.60/70, SA106 Gr.B, SA333 Gr.1/6 - Re-dry at 300–350 °C for 1 hour before use if exposed
- Charpy impact value ≥50 J at –50 °C in both as-welded and PWHT condition
- Not suitable for short arc or rapid weave techniques
- Ideal for high mechanical restraint and multipass welds
Product Details
Typical Weld Metal Chemical Composition (%)
C | Mn | Si | Ni | P | S |
0.06 | 1.20 | 0.30 | 0.50 | 0.020 | 0.015 |
Typical Mechanical Properties (All Weld Metal)
Heat Treatment | Yield Strength
Rp (N/mm2) |
Tensile Strength
Rm (N/mm2) |
Elongation
A5 (%) |
Charpy Impact Value
ISO-V J -50°C |
PWHT 620°C x 1h | ≥ 400 | 500-600 | ≥ 24 | ≥ 50 |
As Welded | ≥ 460 | 520-650 | ≥ 26 | ≥ 50 |
Recommended Welding Parameters
Diameter (mm) | Amperage Range (A) |
2.50 | 60-90 |
3.15 | 90-140 |
4.00 | 140-185 |
5.00 | 180-250 |
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