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At North Shore Steel we are closely monitoring the COVID-19 outbreak. Our facilities remain open and we look forward to serving our customers.


Manganese 11-14% Steel Plate

200 BHN work hardens to 550 BHN

Our high Manganese Steel Plate is an 11 – 14% Mn steel that performs best in extreme impact applications. Under shock and impact, it nearly triples its initial surface hardness while retaining its interior toughness and acquires a high polish.

Our Manganese Steel Plate

Mangalloy steel is non-magnetic and abrasion-resistant. We offer in-house services for our Mangalloy steel plates, but we recommend the following processes to our customers when purchasing our Manganese Steel Plate:

See our in-house services below

  • Cutting: We recommend using plasma or laser, but can also be flame cut with oxygen-acetylene, and water jet
  • Forming: Cold bending and cold roll forming can be performed.
  • Machining: Due to Mangalloy’s work hardening feature, special tooling such as carbide tipped or high-speed cobalt tools is recommended.
  • Welding: When welding Mangalloy to other manganese, use Mn welding rod such as McKay Hardalloy 118. When welding Mangalloy to a dissimilar metal use 308, 309, or 310 stainless steel coated electrodes. Preheating of Mangalloy is not advised.


With years of experience as a Mangalloy manganese steel plate distributor, Ford Steel understands which Mn wear plate product is right for your application, including:

  • Jaw Plates
  • Wheelabrators
  • Rock Screens
  • Various Step Lips
  • Hoppers
  • Perforated Plates
  • Shot Blast Equipment Liners
  • Abrasive, Non-Magnetic Applications
  • Magnetic Drum Liners
  • RR Bolster Plates Stock Tubes
  • Stone Chutes
  • Chain Conveyor
  • Wear Patches

Mechanical Properties

  • Hardness: 200 BHN (before work hardening), 550 BHN (after work hardening)
  • Tensile Strength: 145,000 PSI
  • Yield Strength: 55,000 PSI

Chemical Properties

  • Carbon: 1.13
  • Manganese:  13.00
  • Sulphur: 0.003
  • Phosphorus: 0.017
  • Silicon: 0.38
  • Thicknesses:
    • 3/16"
    • 1/4"
    • 3/8"
    • 1/2"
    • 5/8"
    • 3/4"
    • 1-1/4"
    • 1-1/2"
    • 2"
  • Widths: 48", 60", 72", 96"
  • Lengths: 120", 144", 240"
Ready to get started? 1-800-325-4012