Description
HF-350
MARUTHI HF-350 is a rutile coated electrode. It gives a corrosion & wear resistant ferritic-martensitic stainless steel weld metal .It is used in hardfacing applications where hardness of 42-46 HRC is required. Weld metal is resistant to softening up to 500 C.
Applications
MARUTHI HF-350 is used for hardfacing alloyed and unalloyed steels. It is suitable for hardfacing worn rail surfaces, crane and conveyor wheels, cast steel valve seats, pinions, and track rollers and links of earth-moving equipment.
MARUTHI HF-350 is recommended for multipass applications.
Preheating and Interpass Temperature: A minimum temperature of 200°C is recommended.
Mechanical Properties (Weld All Metal)
| Property | Value |
|---|---|
| Yield Strength | 70 – 80 Kg/mm² |
| Tensile Strength | 90 – 110 Kg/mm² |
| Elongation (L=5d) | 10 – 15% |
| Hardness | 38 – 40 HRC |
| Impact (ISO-V) | 24 J (+20°C) |
Welding Parameters AC (Min 50V) / DC (+)
| Electrode Ø (mm) | Current (Amps) |
|---|---|
| 2.50 | 60 – 90 |
| 3.20 | 110 – 160 |
| 4.00 | 140 – 200 |
