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L605 Alloy
L605 Cobalt-Chromium Alloy
Strength, Corrosion Resistance, Performance
High-Strength Bar & Wire for Critical Applications
L605 (also known as Alloy 25 or UNS R30605) is a cobalt-chromium-tungsten-nickel alloy known for its exceptional strength, wear resistance, and oxidation resistance at high temperatures. Its biocompatibility and mechanical durability make it ideal for both non-implantable medical devices and aerospace components that demand reliability in extreme conditions.
MGM Industries supplies L605 bar and wire made to spec, compliant with ASTM F90, AMS 5759 (bar), and AMS 5797 (wire), ready for critical-use applications
Key Features
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​​High strength and excellent mechanical properties
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Outstanding corrosion, wear, and oxidation resistance
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Biocompatible for non-implantable surgical and medical tools
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Performs reliably in high-temperature, high-stress environments
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Suitable for precision machining and fabrication
Chemical Composition
Element
Carbon (C)
Manganese (Mn)
Phosphorus (P)
Sulfur (S)
Silicon (Si)
Chromium (Cr)
Nickel (Ni)
Tungsten (W)
Iron (Fe)
Percentage
Balance
≤ 1.00%
≤ 0.04%
≤ 0.03%
≤ 1.00%
19.00 – 21.00%
9.00 – 11.00%
14.00 - 16.00%
​≤ 3.00%
Note: May vary slightly depending on melt source and form (wire or bar).
Material Solutions
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DFARS & Domestic Melt
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Custom sizes, length and finishes
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Diameters from 0.0254mm to 25.4mm (0.001" to 1.00")
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Lengths from 152.4mm to 3657.6m (6.00" to 144")
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​Ground & Polished finishes 8 RA or better
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Diameter tolerance as tight as ±0.0001​
Applications
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Surgical instruments and medical tools
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Catheter reinforcement wire and spring forms
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Aerospace fasteners, bushings, and turbine components
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Industrial high-temp wear parts and chemical handling systems
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