STARBLAZE PRIME 12018 M
AWS A5.5: E12018-M
Ultra-Durable | Radiographic Quality | Crack-Resistant Welds
A basic coated, low hydrogen electrode engineered for welding high-strength steels with demanding yield requirements. StarBlaze Prime 12018M delivers stable arc performance, minimal spatter, and fine-rippled bead appearance. Its Ni-Cr-Mn-Mo alloyed weld deposit offers exceptional crack resistance and mechanical integrity. Trusted for structural and pressure equipment requiring ultra-tough welds with excellent toughness at sub-zero temperatures.
Available Packs
- 2.50 mm x 350 mm – 2.5 kg pouch
- 3.15 mm x 350 mm – 5 kg box
- 4.00 mm x 450 mm – 5 kg box
- 5.00 mm x 450 mm – 5 kg box
- Custom bulk packaging available
Key Features
- High yield strength with excellent tensile performance
- Outstanding notch toughness: impact rated at -50°C
- Very low hydrogen content, moisture resistant formulation
- Clean slag removal with finely rippled, smooth bead finish
- Superior arc control with low spatter and high deposition rate
Industries
- Infrastructure and heavy fabrication
- Offshore structures and pressure vessels
- Earthmoving, mining, and construction equipment
- Power, hydro, and process industries
Processes
- Shielded Metal Arc Welding (SMAW / MMA)
- DC+ polarity recommended
- All-position usability: PA, PB, PC, PF, PE
- Suitable for radiographic-quality welds
- Ideal for crack-resistant weld joints in dynamic loading conditions
Additional Details
- Designed for compatibility with EN ISO 18275-A steel grades
- Diffusible hydrogen: < 4 ml / 100g weld metal
- Redrying instruction: 300–350°C for 1–2 hours
- Keep electrodes dry; avoid condensation before use
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | Ni | Cr | Mo | S | P |
| 0.07 | 0.40 | 1.80 | 2.30 | 0.45 | 0.45 | 0.010 | 0.020 |
Typical Mechanical Properties (All Weld Metal)
| Test Condition | Yield Strength Rp (N/mm2) | Tensile Strength Rm (N/mm2) | Elongation A5 (%) | Charpy Impact Value (ISO-V J -50°C) |
| As Welded | 745-830 | ≥ 880 | ≥ 18 | ≥ 47 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 50-90 |
| 3.15 | 90-140 |
| 4.00 | 130-180 |
| 5.00 | 180-240 |
