Tianqiao Welding
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SJ302 is a kind of silicon-calcium type medium sintered flux, featuring a Basicity (B//W) of 1.0-1.1 and a particle size mesh of 10-40 (2.0-0.45mm).
Designed for versatility, it supports both alternating current (AC) and direct current (DC). The resulting welding bead shapes beautifully with "short slag" characteristics for easy removal. It ensures fine toughness, moisture resistance, and superior crack resistance in the welding seam.
SJ302 is ideally applied when working with welding wires such as H08A or H08MnA. It is highly effective for welding:
| SiO₂ + TiO₂ | Al₂O₃ | CaO + MgO | CaF₂ | S | P |
|---|---|---|---|---|---|
| 20~30 | 30~40 | 15~25 | 7~10 | ≤0.06 | ≤0.06 |
| Wires | Standard Models | Y.P. (MPa) | T.S. (MPa) | E.L. (%) | I.V. (J) |
|---|---|---|---|---|---|
| H08A | F4A2-H08A | ≥350 | ≥420 | ≥27 | ≥22% |
| H08MnA | F5A4-H08MnA | ≥410 | ≥490 | ≥27 | ≥22% |
