The B-85 Hardfacing Welding Electrode is a specialized Hardfacing Rod designed to deposit exceptionally wear-resistant surfaces on components subjected to severe abrasion, friction, and moderate impact. Featuring a high-chromium content flux coating, this arc welding stick creates protective overlays that maintain integrity in high-temperature and corrosive environments. Ideal for rebuilding and protecting industrial equipment, this Hardfacing Rod extends service life in demanding operational conditions.
The electrode’s unique high-chromium flux formulation enables the deposited metal to develop a dense, hard microstructure. This metallurgical characteristic provides outstanding resistance to gouging, grinding, and erosive wear caused by minerals, ores, and abrasive slurries. The overlay effectively shields base materials from degradation, even when exposed to temperatures up to 600°C (1112°F) or corrosive atmospheres commonly found in mining, cement, and material handling applications.
Critical to its performance are the exceptional mechanical properties delivered by the B-85 Hardfacing Rod. When applied in two layers as recommended, the weld deposit achieves a hardness range of 57–62 HRc (Rockwell C scale). This extreme surface hardness directly combats material loss from sliding abrasion and high-stress grinding, though the deposit should not be subjected to severe impact or heavy pounding due to its inherent brittleness at this hardness level.
This rod excels in surfacing components like crusher hammers, augers, trencher teeth, pulverizer rollers, and chute liners. Its high-temperature stability makes it suitable for furnace parts and kiln components. Users must note its operational constraints: while resistant to abrasion and moderate compression, the overlay lacks the toughness for applications involving heavy hammering, extreme point impacts, or severe bending stresses. Proper pre-heat and controlled interpass temperatures are essential to prevent cracking.
For industries battling costly equipment wear, the B-85 Hardfacing Rod delivers a cost-effective protective solution. Its combination of extreme hardness (57–62 HRc), high-temperature/corrosion stability, and chromium-enhanced abrasion resistance makes this Hardfacing Rod indispensable for rebuilding critical machinery. Applied correctly within its impact limitations, it significantly reduces downtime and replacement costs across mining, steel, and heavy processing sectors.
Post time: Aug-07-2025