welding electrode AWS A5.15 ENi-CI Graphite Type Cast Iron Electrode
THZ308 AWS A5.15 ENi-CI
Graphite Type Cast Iron Electrode GB/T 10044 EZNi-1
Applications:
For the welding of thin cast iron or cast iron part need be machined, such as cylinder cover, engine bearer, gear box, machine tool guide.
Characteristics:
THZ308 is cast iron electrode made by graphite type coating and pure-Ni core rod. Can be weld by AC or DC and not need preheating when welding. Excellent crack resistance ability and machining performance of welding metal.
Attention:
1. The electrode must be re-dry by 140℃-160℃ for 1 hour before welding.
2. To avoid the crack, hammer the welding pass as soon as after welding is be suggested.
3. Lower heat input is recommend.
Chemical Composition of All Weld Metal: (Wt. %)
Items | C | Mn | Si | S | Fe | Ni | Others |
Requirements | ≤2.0 | ≤1.0 | ≤2.5 | ≤0.03 | ≤8.0 | ≥90.0 | ≤1.0 |
Typical Operating Procedures:(AC or DC+)
Diameter (mm) | 2.5 | 3.2 | 4.0 |
Length (mm) | 300 | 300 | 350 |
Current (A) | 60-90 | 90-110 | 120-150 |
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