AWS A5.11: E NiCrMo-4 | EN ISO 14172: E Ni 6276 (Ni Cr 15 Mo 15 Fe 6W4)
Hastelloy C276 Equivalent | Extreme Corrosion Resistance | Austenitic Overlay Electrode
StarBlaze Prime NiCrMo4 is a nickel-based, low hydrogen electrode engineered for welding and overlay of highly corrosion-resistant Ni-Cr-Mo alloyed steels. Specially suited for surfacing and joining components requiring maximum protection against oxidizing media, the electrode withstands service temperatures up to 1100°C. Ideal for Alloy C-276 and similar composition steels, it provides excellent strength and elongation, maintaining weld integrity under aggressive chemical exposure.
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
Typical Weld Metal Chemical Composition (%)
| C | Mn | Si | Cr | Mo | Nb | P | S | Fe | Ni | Structure |
| 0.04 | 0.40 | 0.25 | 22.0 | 9.0 | 3.5 | ≤ 0.015 | ≤ 0.015 | 2,50 | Rem. | Austenite |
Typical Mechanical Properties (All Weld Metal)
| Yield Strength
Rp (N/mm2) |
Tensile Strength
Rm (N/mm2) |
Elongation
A5 (%) |
Charpy Impact Value
ISO-V (J) RT |
Charpy Impact Value
ISO-V (J) -196°C |
| > 420 | > 760 | > 30 | 90 | 47 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 50-70 |
| 3.15 | 80-100 |
| 4.00 | 100-140 |
| 5.00 | 140-190 |
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