Feed Screws

American Screw & Barrel will Manufacture (12mm to 12” Diameter) & Rebuild (16mm to 18” Diameter) Screws with a maximum length of 315“ for single-piece construction. We offer a full range of Base Materials for your specific processing applications depending on Wear Resistance, Corrosion Resistance, and Material Strength. Our current list of Capacities and Material offerings:


Capacity


New
• 12mm to 12” Diameter with a maximum length of 315” for one-piece construction.
• Multi-piece Screws are available for lengths >315”

Rebuild
• 16mm to 18” Diameter with a maximum length of 315”


Base Materials


Alloy Steel
• 4140HT
• 4340HT
• Nitralloy 135 (mod)

Stainless
• Series 300 and 400 Stainless
• 17-4 Precipitation Hardening Stainless

Tool Steel
• D-2
• A-2
• H-13
• Lescowear

Powder Metallurgical Tool Steel
• 9V
• 10V
• 20CV
• S90V
• Z-Wear Elmax
• Vanadis

Nickel Alloys
• Inconel 718
• Inconel 625
• Hastelloy C-276


Flight Hardfacing Materials


Nickel Base
• Colmonoy #56
• Colmonoy #57
• Colmonoy #88
• Colmonoy #83
• Coltung #1

Cobalt Base
• Stellite #1
• Stellite #6
• Stellite #12


Coatings


• Chrome Plating
• Tech 17 Ceramic Chrome Seal
• Thin Dense Chrome
• Electroless Nickel Plating

• Ion and Gas Nitriding
• Total Carbide Encapsulation
• Flight Land Carbide Encapsulation
• New Abrasion Eliminator – Metallurgically Fused Carbide Root Protection