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DIFF DUR NIFD

DIFF DUR NIFD

Flux-cored wire with fused tungsten carbide and Ni-Cr-B-Si matrix for semiautomatic welding in extreme abrasion and corrosion conditions.

PRODUCT DESCRIPTION:

• Flux-cored metal wire filled with 60% fused tungsten carbide (FTC) and 35–40% Ni-Cr-B-Si matrix.
• Developed for semiautomatic welding applications requiring exceptional wear and corrosion resistance.
• Low melting range (900–1050 °C) ensures excellent flow and smooth, clean deposits.
• Matrix highly resistant to acids and other aggressive media.

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Applications

STANDARD:

DIN 8555: MF21-55-CGZ)

ALLOYING ELEMENTS:

FTC-60% & NI-MATRIX-40%

HARDNESS:

FTC APPROX. 2360 HV0.1
NI-CR-B-SI-MATRIX APPROX.
450 – 480 HV0.1

PACKAGE SIZES:

5 & 10 KG OF SPOOL

 

 

DIA(Ø) 1.6 2.4
VOLTAGE 17-19 19-22
AMPERAGE 160 180

Product Specification

• Designed for semiautomatic welding on high-wear, corrosion-prone parts.
• Excellent flow and wetting characteristics.
• Produces smooth, clean, and uniform overlays.
• Maintains hardness and abrasion resistance in harsh environments.

• 60% fused tungsten carbide (FTC).
• 35–40% Ni-Cr-B-Si matrix.

• Clean surface thoroughly from rust, scale, oil, and dirt.
• Use lowest possible amps and volts to avoid tungsten carbide melting.
• Avoid overheating base material.
• Maintain controlled heat input for uniform deposit.

• Ferritic and austenitic steel parts, steel castings.
• Tool joints, stabilizers in petroleum industry.
• Tie tamping tools, clinker breaker hammers, and other high-wear components.

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