JACKSUN ARMOUR MN is a high-manganese hard-facing electrode designed for extreme impact and moderate abrasion conditions.
The E7-UM-250KP series provides excellent resistance to shock, impact, and spalling, suitable for wear-prone industrial components in mining, crushing, and heavy-duty machinery.
| C | Mn | Si | Cr |
| 0.35-1.0 | 12 – 16 | 0.3-0.8 | 5.0-18.0 |
| Property | Hardness (HB) | Impact Toughness (J) |
| Requirement | ≥ 250 | N/A |
| Typical Values | 250 – 300 | Excellent for shock & impact applications |
| Size (mm) | Size (inch) | Current Range (A) | Polarity | Voltage (V) | Packing (5 kg) | Packing (20 kg) |
| 3.2 | 1/8 | 90 – 130 | DC+ | 22 – 24 | ✔ | ✔ |
| 4.0 | 5/32 | 120 – 170 | DC+ | 24 – 26 | ✔ | ✔ |
| 5.0 | 3/16 | 150 – 220 | DC+ | 26 – 28 | ✔ | ✔ |
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