StarBlaze HF 650LH
DIN EN 8555: E6-UM-60P
Low Hydrogen | Air-Hardening | Abrasion & Impact Resistant
StarBlaze HF 650LH is a basic-coated, low hydrogen electrode engineered for hardfacing applications where extreme abrasion and impact resistance are needed. It forms a tough, scouring-resistant weld metal with minimal cracking tendency and no need for buffering. The deposit is machinable by grinding and offers a typical hardness of 57–61 HRC.
- Available Packs
- Dimensions: 3.15 mm x 450 mm, 4.00 mm x 450 mm, 5.00 mm x 450 mm
- Pack Sizes: 2.5 Kg Pouch, 5 Kg Box
- Master Box: 20 Kg, 30 Kg, 40 Kg, Customisable packaging available on request
Key Features
- Weld metal hardness of 57–61 HRC
- Excellent scouring and rolling friction resistance
- Crack-resistant, no buffering required
- Machinable via grinding
- Strong arc stability with low hydrogen formulation
Industries
- Mining and earthmoving equipment
- Agriculture and dredging machinery
- Steel plants and crushing operations
- Cement, casting, and rolling mills
- Quarrying and excavation
Processes
- Shielded Metal Arc Welding (SMAW / MMA)
- Polarity: AC or DC (~70V OCV)
- Positions: PA, PB, PC
- Weld with a vertical short arc for optimal deposit
- Preheat high carbon/low alloy steels (200–400°C)
- Slow air cooling recommended after surfacing
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | Cr | Fe |
| 0.50 | 1.00 | 1.00 | 7.00 | Rem. |
Typical Mechanical Properties (All Weld Metal)
| Hardness |
| 57-61 HRc |
| Obtained in pure weld metal |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 3.15 | 100-140 |
| 4.00 | 140-180 |
| 5.00 | 180-240 |
