| Iron Base Alloys are used for wear resistance
primarily in applications where severe corrosion and/or high temperature will not be a
factor in the wear-mode. Although some iron base hardfacing alloys are capable of
performance at temperatures 850° & 1100° F, better results may be obtained using
cobalt or nickel base products. Depending on the carbide concentration and/or
constituents, iron base alloys are effective in resisting moderate to sever abrasion,
impact, metal to metal, cavitation, and erosive wear modes. Comparative Compositions Chart
| Descriptions
& Applications for Alloys |
| MLC |
Use for build-up or joining of manganese steel or carbon
steel parts subject to heavy impact. Examples: Rail Equipment, Crushing Equipment, Scoring
Hammers, Toothed Crusher Rolls, Dredger Buckets, Etc. |
| REBUILD |
Use for build-up of mild steel where compressive strength, impact resistance,
and/or machinability is/are required. Acts as good buffer layer prior to hardfacing.
Examples: Sow Blocks, Rail Ends, Mine Car and Crane Wheels, Couplings, Etc. |
| MC |
Use to join or surface manganese steel when cavitation and
impact resistance is required. Examples: Hydraulic Press Pistons, Dredge Pumps, Crushing
Equipment, Etc. Can be used as buffer layer for alloys 457, 458, 459, and 460. |
| 140 |
Used for build-up of any weldable steel, except 14% manganese steel where
resistance to high stress sliding abrasion with medium impact is required. Examples:
Shovel House Rolls, Mine Car Wheels, Tractor Car Rollers & Idlers. |
| 150 |
Used for applications where severe abrasion is combined with
moderate to high impact. Examples: Crusher Jaws, Pulverizing Hammers, Breaker Bars, Etc. |
| 255 |
Use for applications requiring resistance to low abrasion and heavy impact and
compressive stresses. Examples: Well Drilling Equipment, Cement Grinder Rings, Muller
Blades, Shovel Tracks, Bucket Lips and teeth, Screw Conveyors, Etc. |
| 356 |
Use for applications requiring resistance to sever abrasion,
heat impact, compression, gouging, and grinding. The deposit is heat treatable, forgeable,
and resistant to cracking. Examples: Hammermill Hammers, Dredge Cutters, Augers, Grader
Blades, Road Rippers, Asphalt Mixers, Cane Knives and Shredders, Etc. |
| 457 |
For applications requiring resistance to intense abrasion and moderate impact.
Examples: Soft Ore Crushers, Conveyor Screws, Earth Moving Equipment, Etc. |
| 458 |
Similar to 457 but may only require one pass to achieve
optimum results. |
| 459 |
For applications requiring resistance to intense abrasion and moderate impact
at temperatures up to 850°F. Examples: Refractory Screws, Brick Presses, Cement Presses,
Mixer Blades, Etc. |
| 460 |
For applications requiring resistance to severe abrasion and
moderate impact up to 1100°F. Examples: Sinter Crushers, Wear Bars, Zinc Scrapers Bars,
Blast Furnace Charge Systems. |
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