MIG WIRE CORODUR HARD FACING 79-OA 1.6MM
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MIG Wire Corodur Hard Facing 79-OA 1.6mm
Product Overview
The Corodur 79-OA Hard Facing MIG Wire (1.6mm) is a premium flux-cored, open-arc (self-shielded, gasless) hardfacing wire engineered for extreme abrasion resistance. Manufactured in Germany by Corodur Fülldraht GmbH, this C-Cr-Nb-B alloyed wire is reinforced with added refractory carbides, delivering an exceptionally high scratch hardness deposit ideal for components exposed to severe mineral wear combined with light impact stress.
Key Features
- Alloy composition: Carbon-Chromium-Vanadium-Niobium-Boron (C-Cr-V-Nb-B) with refractory carbide additions
- Wire diameter: 1.6mm
- Process type: Open-arc (OA) flux-cored — no shielding gas required, ideal for outdoor and field welding
- Deposit hardness: Very high scratch hardness; up to 67 HRc achievable in the first layer
- Heat resistance: Maintains hardness with no significant degradation up to 650°C
- Recommended deposit: 2–3 layers, maximum 10mm thickness
- Preheat requirement: 450°C, with slow, preferably furnace-controlled cooling
Typical Applications
This hardfacing wire is purpose-built for heavy wear environments across mining, agriculture, and industrial processing, including:
- Sinter plants and cement clinker processing
- Lignite mining machinery and bucket wheel excavators
- Dragline buckets, dredge components, and sand dredging equipment
- Chains, tooth adapters, and ground-engaging tools
- Agricultural tines and bucket sides
- Cement pumps and slurry chutes
- Gravel and quarrying equipment
Why Choose Corodur 79-OA
For operators needing maximum protection against extreme mineral abrasion where impact loading is minor, Corodur 79-OA offers a reliable, high-performance rebuilding and hardfacing solution. Its self-shielded design simplifies application in remote or field conditions, while its high-temperature hardness retention makes it especially suited to sinter and cement industries where operating temperatures are elevated.
CLASSIFICATION:
DIN 8555
MF 10-70-GZ
DIN EN 14700
T Fe 16-70-GZ
