Which is better, manganese steel or spring steel?
Category: Industry News
2025-07-24 11:08
The performance advantages and disadvantages of manganese steel and spring steel depend on the specific application scenario. The two have different focuses on hardness, toughness, and wear resistance, and there is no absolute advantage or disadvantage.
Core Performance Comparison
Manganese Steel: Characterized by high manganese content (such as ZGMn13 containing 11%-14% manganese), typical hardness HRC52-58, significant surface work hardening ability under impact load, and outstanding resistance to chipping. Suitable for working conditions that withstand severe impacts, such as felling axes, crusher lining plates, etc., the chipping rate is 23% lower than ordinary steel when cutting hardwood.
Spring Steel: Represented by 65Mn (containing 1.2% manganese) or 60Si2Mn (containing 1.5%-2.0% silicon), the elastic modulus reaches 210GPa, and the high-frequency chopping bending resilience rate is 92%. The rust prevention cycle is 3 times that of ordinary steel, making it more suitable for humid environment operations such as jungle knives.
Material Property Differences
Heat Treatment Process.
Manganese steel requires three-fire forming (1050℃/900℃/800℃) with 180-220℃ low-temperature tempering to form a gradient structure.
Spring steel adopts 830-850℃ oil quenching + double tempering (first 450-480℃ holding for 2 hours, second 280-320℃ water cooling for 1.5 hours), a temperature deviation of ±8℃ will cause HRC1.5 hardness fluctuation.
Low Temperature Adaptability.
Manganese steel still maintains 27J impact energy at -20℃, with obvious low-temperature toughness advantages.
Spring steel has stronger resistance to deformation in humid and hot environments, and the high-frequency chopping deformation is <0.15mm.
Application Scenario Recommendations
Priority is given to manganese steel: Heavy-duty logging tools, wear-resistant parts for mining machinery, protective structures for low-temperature operating equipment.
Priority is given to spring steel: Jungle survival knives, precision spring components, high-frequency vibration mechanical components.
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