Welding Wire UTP WEARMIG DUR 450 (UTP A Dur 450)

WEARmig Dur 450 Solid Wire for Wear-Resistant Hardfacing

The WEARmig Dur 450 is an alloyed solid wire for MAG hardfacing of components exposed to high stress from pressure, impact, and abrasion. The weld metal achieves a hardness of approximately 450 HB in its as-welded state, making it particularly suitable for the repair, regeneration, and preventive wear-protection hardfacing of highly stressed machine components.

Typical applications include track components of crawler vehicles, machine and gear parts, and punches. The deposited weld metal can be post-processed by grinding. Furthermore, both soft annealing and subsequent hardening are possible, allowing the mechanical properties to be precisely adjusted to the respective application.

Product Features

• Solid wire for MAG hardfacing
• High resistance to pressure, impact, and abrasion
• Hardness of as-welded metal: approx. 450 HB
• Hardness after hardening at 820–850 °C with oil quenching: approx. 62 HRC
• Hardness after soft annealing at 720–740 °C: approx. 200 HB
• Hardness of the first layer on unalloyed steel: approx. 350 HB
• Weld metal can be soft annealed and hardened
• Mechanical post-processing by grinding possible
• Processing with direct current at the positive pole

Typical Applications

The WEARmig Dur 450 is suitable for, among other things:

• Track components of crawler vehicles
• Machine components
• Gear parts
• Punches
• Wear-stressed surfaces and edges
• Repair and regeneration of worn components
• Preventive wear protection coatings

Standards and Classifications

Typical Weld Metal Analysis

Processing Notes

The welding area must be prepared to be metallically bright before processing. Solid components and higher carbon steels should be preheated to approximately 300 °C to reduce stresses and crack formation.

The specific welding parameters must be adjusted to the component geometry, base material, deposition thickness, and welding position.