StarBlaze Prime NiCrFe-2
AWS A5.11: ENiCrFe-2
Heat-Resistant | Cold Tough | Ni-Mo-Nb Alloyed All-Position Electrode
StarBlaze Prime NiCrFe-2 is a basic-coated Inconel electrode formulated for high-performance welding of nickel-based alloys and dissimilar metals. Designed for superior resistance to corrosion, scaling, and creep up to 800°C, it delivers exceptional toughness down to cryogenic temperatures (-196°C). With outstanding all-position weldability and metallurgical stability, it is ideal for fabrication and repair of Inconel, Monel, stainless steel, and nickel alloys across extreme service conditions.
Available Packs
Dimensions: 2.50 mm x 350 mm, 3.15 mm x 450 mm, 4.00 mm x 450 mm
Pack Sizes: 2.5 Kg Pouch, 5 Kg Box
Master Box: 20 Kg, 30 Kg, 40 Kg, Customisable packaging available on request
- Excellent out-of-position weldability with stable arc control
- High resistance to scaling, oxidation, and corrosion at elevated temperatures
- Maintains impact toughness at cryogenic temperatures (-196°C)
- Superior mechanical properties across dissimilar weld joints
- Austenitic weld metal with carbide dispersion for enhanced strength
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- Petrochemical and refinery equipment
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- Heat exchangers and cryogenic systems
- Power plants and pressure vessels
- Aerospace and high-temperature components
- Inconel/Monel/Nickel alloy fabrication and overlay
- Shielded Metal Arc Welding (SMAW / MMA)
- DC+ polarity recommended
- All-position usability: 1G/PA, 2F/PB, 2G/PC, 3G/PF, 4G/PE, PF2
- Ideal for welding Inconel to itself, stainless steel, or ferritic-austenitic transitions
- Maintains integrity across thermal extremes from -196°C to +800°C
- Re-dry electrodes at 300°C for 1–2 hours prior to use
- Use minimum amperage to maintain low heat input and avoid microcracking
- Clean and degrease surfaces thoroughly before welding
- Suitable for structural and overlay applications on alloyed steels
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Mn | Si | Cr | P | S | Nb | Mo | Fe | Ni |
| 0.04 | 2.00 | 0.30 | 16.00 | 0.02 | 0.015 | 1.50 | 1.00 | 8.00 | Rem. |
Typical Mechanical Properties (All Weld Metal)
| Yield Strength Rp (N/mm2) | Tensile Strength Rm (N/mm2) | Elongation A5 (%) | Charpy Impact Value ISO-V (J) -196°C |
| ≥ 400 | ≥ 600 | ≥ 40 | ≥ 47 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 40-60 |
| 3.15 | 70-90 |
| 4.00 | 100-140 |
