J422 Welding Electrode
J422 is a carbon steel electrode with calcium titanium coating. It can be used for both AC and DC, and can be used for all-position welding. It has excellent welding process performance and good mechanical properties; the arc is stable, the spatter is small, the slag is easy to remove, and the arc is easy to strike again; the welding seam is beautiful in shape, the welding wave can be wide, narrow, thin, or thick, and the welding is easy and efficient. high.
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| project | C | Mn | Si | S | P | Ni | Cr | Mo | V |
| Guaranteed value | ≤0.10 | 0.27-0.55 | ≤0.25 | ≤0.030 | ≤0.035 | ≤0.30 | ≤0.20 | ≤0.30 | ≤0.08 |
| Example | 0.08 | 0.45 | 0.14 | 0.018 | 0.022 | 0.030 | 0.035 | 0.005 | 0.004 |
| Project | Tensile strengthRmRm/MPa | Yield StrengthRel/Rp0.2 MPa | ElongationA（%） | Charpy V-notch impact absorption energyKV2（J） | |
| 0℃ | -20℃ | ||||
| Guaranteed value | ≥430 | ≥330 | ≥20 | ≥27 | ≥47 |
| Example | 475 | 390 | 30 | 97 | 73 |
| Welding diameter（mm） | Φ2.5 | Φ3.2 | Φ4.0 | Φ5.0 |
| Welding length(mm) | 300 | 350 | 400 | 400 |
| Welding current（A） | 60~100 | 90~140 | 160~210 | 220~270 |
Features:
J422 is a carbon steel electrode with calcium titanium coating. It can be used for both AC and DC, and can be used for all-position welding. It has excellent welding process performance and good mechanical properties; the arc is stable, the spatter is small, the slag is easy to remove, and the arc is easy to strike again; the welding seam is beautiful in shape, the welding wave can be wide, narrow, thin, or thick, and the welding is easy and efficient. high.
Usage:
Used for welding important low carbon steel structures and low alloy steel structures with low strength levels, such as Q235, 09MnV, 09Mn2, etc.
Precautions:
Under normal circumstances, the electrode does not need to be baked before welding. When the welding rod gets wet, it must be baked at 150-170°C for 0.5-1 hour before use.
