Assembly,
Repair,
Hardfacing
Electrodes BMI
BMI electrodes offer exceptional performance for assembly, repair, and hardfacing applications in the most demanding industrial environments.
Each electrode is designed to meet specific needs, whether it’s for welding dissimilar steels, castings, or providing protection against extreme abrasion.
SE68®
Characteristics
Electrode Type: Basic coated hardfacing electrode with very high efficiency (240%).
Composition and Structure: Deposited metal with very high content of carburizing elements, designed for extreme abrasion resistance combined with moderate shocks and temperatures.
Hardness:
- 1st layer ~64 HRC
- 2nd layer ~68 HRC
Available Dimensions:
Ø 3.2 mm x 350 mm
Ø 4 mm x 350 mm
Packaging: Boxes of 4.5 kg
Advantages
Very high efficiency (240%) offering excellent productivity.
Exceptional abrasion resistance, even in the presence of moderate shocks.
Performance maintained up to 550°C.
Smooth fusion, almost no slag, and a smooth bead.
Applications
Steel mills
Crusher parts
Dredging buckets
Screws hardfacing
Mixer blades
Pump bodies for abrasive materials
Excavator bucket teeth
Concrete pumps
Plowshares
Clay crushers
Brick press screws
Shielding plates
SE63®
Characteristics
Advantages
Very high abrasion resistance, up to 50 times higher than conventional electrodes of the same hardness.
Smooth fusion, well-spread metal, no slag, and a very smooth bead.
Designed for multi-layer hardfacing, ideal for demanding applications.
Suitable for parts subjected to low to moderate shocks.
Applications
Screws hardfacing
Mixer blades
Pump bodies for abrasive materials
Excavator bucket teeth
Mineral crushing installations
Concrete pumps
Ore crushers
Plowshares
Clay crushers
Brick press screws
Shielding plates
SE29-9®
Characteristics
Electrode Type: Basic rutile-coated electrode for assembly and repair, depositing a high mechanical strength stainless steel.
Composition and Structure: Austenitic-ferritic deposited metal rich in Chromium (29%) and Nickel (10%), designed for excellent crack resistance.
Mechanical Properties:
- Tensile strength (Rm): 700-850 MPa
- Yield strength (Rp0.2%): > 500 MPa
- Elongation (A%): > 20%
- Hardness: ~240 HB
Available Dimensions:
Ø 3.2 mm x 350 mm
Packaging: Boxes of 4.5 kg
Advantages
Applications
Assembly and repair of stainless steels with similar or ferritic compositions.
Maintenance and repair work on hard-to-weld steels.
Industrial applications requiring stainless deposits with high mechanical properties.
SE-Fonte-Ni®
Characteristics
Electrode Type: Graphite-based repair electrode, depositing pure nickel metal.
Composition and Structure: Deposited metal containing more than 95% nickel, designed for the assembly and repair of gray castings and cracks.
Mechanical Properties:
- Tensile strength (Rm): > 300 MPa
- Hardness: ~180 HB
Available Dimensions:
Ø 2.5 mm x 350 mm
Ø 3.2 mm x 350 mm
Ø 4.0 mm x 350 mm
Ø 5.0 mm x 450 mm
Packaging: Boxes of 4.5 kg
Advantages
Homogeneous deposit, easily machinable, with excellent adhesion.
Good spread of the filler metal for precise and efficient repairs.
Reduction of cracking risks due to low heat buildup between passes.
Applications
Repair of engine blocks
Machine tool frames
Gearboxes
Reducers
Pump bodies
Cast parts
Valve bodies