Mount Joy Wire is an oil-tempered wire manufacturer that operates nine tempering furnaces (188 wire total capacity) 24 hours a day, 7 days a week. Few wire manufacturers offer this level of production capacity, and fewer still perform oil tempering, patenting, and annealing under one roof. We provide our customers with a variety of finishes, shapes, tensile ranges, diameters, diameter tolerances, and packages. This single-source approach means shorter lead times and the ability to source multiple sizes, finishes, and tensile ranges from a single supplier.
At Mount Joy Wire, we use a proven tempering process that produces a fine-grained microstructure engineered for consistent mechanical performance across a wide range of applications. Available configurations include round and shaped wire from .005 to .152 in three finishes: Bright, Scaleless (Tinted/Straw) and Black Oxide. Tempered MB wire from Mount Joy is ideal for spring, cable-core, flat, and shaped-wire applications.
Metallurgical experts conduct physical testing and microscopic analysis to confirm oil-tempered wire meets customer specifications. Teams verify material properties at every production stage within our ISO 9001-certified Pennsylvania facility.
We apply these verification standards across every wire category we manufacture. Mount Joy Wire continuously refines quality processes to support reliable performance in aerospace, medical, automotive, and industrial applications. This oversight maintains material integrity across all oil-tempered wire operations.
Our team performs oil tempering, patenting, and annealing operations at our Pennsylvania facility. This vertical integration ensures direct control over cast, helix, straightness (oil tempered), and critical properties such as tensile strength and fatigue resistance. Few wire manufacturers offer this complete range of heat-treatment operations under one roof.
Send us your high-carbon steel wire specifications or desired performance properties to request a quote, or call our team directly at the number below.
