Medium Carbon Ferro Manganese
Medium carbon ferro manganese is a medium-carbon grade of ferro manganese alloy, with a carbon content range of 0.7%-2.0%. Its manganese content typically falls between 75%-80%, while impurity levels (silicon, phosphorus, sulfur) are slightly higher than low-carbon ferromanganese but lower than high-carbon ferromanganese.
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Product Introduction
Product Description
Medium carbon ferro manganese is a medium-carbon grade of ferro manganese alloy, with a carbon content range of 0.7%-2.0%. Its manganese content typically falls between 75%-80%, while impurity levels (silicon, phosphorus, sulfur) are slightly higher than low-carbon ferromanganese but lower than high-carbon ferromanganese. Refining processes commonly employ electric silicon thermal refining or ladle decarburization. Medium-carbon ferromanganese is primarily used for alloying steel grades requiring moderate carbon content, balancing deoxidation and desulfurization effects with cost control.
Differences Between Low-Carbon Ferromanganese, Medium-Carbon Ferromanganese and High-Carbon Ferromanganese
|
Comparison Dimension |
Low-Carbon Ferromanganese |
Medium-Carbon Ferromanganese |
High-Carbon Ferromanganese |
|
Carbon Content |
≤ 0.7% (≤ 0.1% for high-end grades) |
0.7% ~ 2.0% |
2.0% ~ 8.0% |
|
Manganese Content |
75% ~ 85% (high purity) |
75% ~ 80% |
70% ~ 75% |
|
Smelting Process |
Electro-silicothermic refining / vacuum decarburization |
Electro-silicothermic refining / shaking ladle decarburization |
Blast furnace process / submerged arc furnace process (direct reduction) |
|
Production Cost |
High (additional refining process required) |
Medium |
Low (simple production process) |
|
Core Function |
Alloying for high-end steel grades; ensures toughness and weldability |
Alloying for mid-range steel grades; balances performance and cost |
Basic deoxidation and desulfurization in steelmaking; cost-effective manganese supplementation |
|
Applicable Steel Grades |
Ultra-low carbon stainless steel, wind power/nuclear power high-strength steel, cryogenic vessel steel |
Engineering machinery steel, automotive structural steel, ordinary spring steel |
Construction steel, general carbon steel for ships, low-alloy high-strength steel |
|
Impurity Control |
Strict (P ≤ 0.1%, S ≤ 0.05%) |
Moderate (P ≤ 0.15%, S ≤ 0.06%) |
Lenient (P ≤ 0.3%, S ≤ 0.07%) |
Product Applications
Mid-Range Machinery Manufacturing
Medium carbon ferro manganese can be used to produce structural components for construction machinery (such as excavator and loader frames and buckets), automotive parts (frame crossbeams and drive shafts), and agricultural equipment components. It enhances steel strength and wear resistance while preventing brittleness caused by excessively high carbon content.
Ordinary Spring Steel and Bearing Steel
As an alloying additive, low-carbon ferro-manganese helps spring steel and medium-to-low precision bearing steel achieve appropriate elastic limits and fatigue strength, meeting the demands of repeated stress under daily operating conditions.
Welded Structural Steel
Additionally, it can be used in manufacturing welded steel structural components (such as small-to-medium bridge components and factory steel frames), balancing steel strength with weldability to reduce the risk of weld cracking.
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