DIFF DUR NISE (AC/DC+)
Tubular electrode with fused tungsten carbide and Ni-Cr-B-Si matrix for extreme abrasion and corrosion resistance.
PRODUCT DESCRIPTION:
• Tubular electrode filled with fused tungsten carbide (FTC) and special Ni-Cr-B-Si alloy.
• Designed for applications facing both severe abrasion and corrosive environments.
• Suitable for overlay on steel castings, nickel-based alloys, and stainless steels.
• Deposit composition: approx. 60% FTC and 35–40% Ni-Cr-B-Si matrix.
Applications
STANDARD:
DIN 8555: E21-GF-UM-60-CGZ)
ALLOYING ELEMENTS:
FTC-60% & NI-MATRIX-40%
HARDNESS:
FTC APPROX. 2360 HV0.1
NI-MATRIX APPROX. 480 –
520 HV0.1
PACKAGE SIZES:
5 & 10 Kg of Spool
COMPOSITION:
FTC with Fe matrix
| DIA(Ø)404 | 4.0 | 5.0 |
|---|---|---|
| LENGTH | 350 mm | 350 mm |
| AMPERAGE | 80-90 | 90-100 |
Product Specification
• Exceptional wear resistance combined with corrosion protection.
• High resistance to acids and aggressive chemical media.
• Produces smooth, clean weld overlays with excellent flow characteristics.
• 60% fused tungsten carbide (FTC).
• 35–40% Ni-Cr-B-Si matrix.
• Maintain melting range between 950–1100 °C.
• Apply using AC or DC+ with correct settings for smooth flow.
• Ensure surface cleanliness before welding.
• Avoid overheating for optimal bonding.
• Ferritic and austenitic steel components.
• Stabilizer blades, conveyor screws, milling plates.
• Deep drilling tools, mixer blades, and similar high-wear parts.



