Product Description
Product Overview
Grade:NiFe-1 Nickel‑Iron Wire
NiFe-1 nickel‑iron alloy solid MIG welding wire is a well‑balanced performance cast‑iron repair consumable. It features high weld strength and excellent toughness together with good impact‑resistance. It offers a nice balance between cost and welding performance. Weld deposit has good machinability. This wire is specially suitable for ductile iron and heavy‑section thick cast‑iron repair work.
Chemical Composition (Wt%)
| Element | Content |
|---|---|
| Ni | 45 – 75 |
| Fe | Balance |
| C | ≤ 2.0 |
| Si | ≤ 4.0 |
| Mn | ≤ 2.5 |
| S | ≤ 0.03% |
| P | ≤ 0.03% |
| Other | ≤ 1.0% |
Mechanical Properties (Weld Deposit)
| Item | Result |
|---|---|
| Tensile Strength | ≥470 MPa |
| Elongation | ≥13 % |
Recommended Welding Parameters
| Parameter | Value |
|---|---|
| Welding Current | 100‑140 A |
| Arc Voltage | 19‑23 V |
| Shielding Gas | Pure Argon / Argon +5~10% CO₂ |
| Wire Feed Speed | 4.5‑6.5 m/min |
Features & Characteristics
✅ High weld strength and excellent toughness
✅ Good impact‑resistance performance
✅ Balanced cost‑to‑performance ratio
✅ Satisfactory post‑weld machinability
✅ Ideal choice for ductile iron and thick heavy cast‑iron workpieces
✅ Good impact‑resistance performance
✅ Balanced cost‑to‑performance ratio
✅ Satisfactory post‑weld machinability
✅ Ideal choice for ductile iron and thick heavy cast‑iron workpieces
Typical Application
- Engine cylinder blocks
- Pump housings, compressor shells
- Heavy‑equipment bases, gearbox castings
- Repair work for heavy‑load grey cast iron and ductile iron components
Welding Operation Guidelines
- Grind out cracks and prepare an open V‑groove to guarantee full penetration.
- Avoid long continuous welding runs.
- Strictly control inter‑pass temperature below 250 °C.
- Preheat thick workpieces to 100‑300 °C before welding.
- Hammer each weld bead after completion to relieve internal residual stress.
