Mangalloy® Manganese Steel: High Impact Plate & Bar
Mangalloy® steel is a high-manganese alloy, typically containing 11–14% manganese, designed for applications involving severe impact and shock loading.
Under repeated impact, Mangalloy® work-hardens, significantly increasing surface hardness while retaining a tough, ductile core. This behavior makes it well suited for applications where impact dominates wear rather than abrasion alone.
What Makes Mangalloy® Different
Mangalloy® is designed specifically for high-impact environments where conventional abrasion-resistant plate may crack or fail.
Key Characteristics
- Work-hardening surface under shock and impact
- Retained internal toughness to resist cracking
- High tensile strength for dynamic environments
- Non-magnetic properties
- Polished surface finish developed in service
Mangalloy® High Manganese Steel Plate
High-Manganese Steel Plate (11–14% Mn)
Mangalloy® plate typically begins at approximately 200 BHN and can work-harden to approximately 550 BHN under repeated impact.
Common Mangalloy® Applications
- Crusher liners and breaker plates
- Jaw plates and rock screens
- Grizzly bars and hoppers
- Shot blast and wheelabrator liners
- Perforated plates and step lips
- Non-magnetic wear applications
Mangalloy® Processing Considerations
Mangalloy® behaves differently than abrasion-resistant wear plate and requires application-aware handling.
Cutting: Plasma, laser, waterjet, or oxy-fuel
Forming: Cold bending and cold roll forming
Machining: Carbide or cobalt tooling recommended due to work hardening
Welding: Manganese-to-manganese: manganese alloy electrodes
Dissimilar metals: stainless electrodes (308 / 309 / 310)
Mangalloy® Steel Bars
Mangalloy® bars are commonly used in metal-on-metal and high-impact contact zones where toughness and work hardening improve service life.
Mangalloy® Bar Forms
Flat Mangalloy® Bar
Square Mangalloy® Bar
Round Mangalloy® Bar
Common Mangalloy® Applications
- Shovel bucket pins
- Crusher hammer build-up
- Grizzly bars
- Dredge and conveyor chain pins
- Shredder and breaker bars
- Bucket hinge pins
- Shot blast hangers
- Security and impact bars
Typical Material Properties
Mechanical (typical):
- Initial hardness: ~200 BHN
- Work-hardened surface: up to ~550 BHN
- Tensile strength: ~145,000 PSI
- Yield strength: ~55,000 PSI
Properties may vary by heat and product form.
Chemical (typical):
- Carbon: ~1.13%
- Manganese: ~13.0%
- Silicon: ~0.38%
Is Mangalloy® Right for Your Application?
Mangalloy® is best suited for applications involving repeated heavy impact, shock loading, or metal-on-metal contact. If abrasion is the dominant wear mechanism with minimal impact, a Wearalloy® abrasion-resistant plate may be a better option.
Contact Our Steel Experts
Share your application details, drawings, or photos to determine whether Mangalloy® is the appropriate solution.
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