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Technical Specifications
Product Overview
Metallurgical Characteristics
Medium carbon steel exhibits a predominantly ferritic-pearlitic microstructure with balanced mechanical properties. The carbon content of 0.30-0.60% provides optimal strength-to-ductility ratio, while controlled manganese content enhances hardenability and strength. The fine-grained structure achieved through controlled rolling ensures excellent structural integrity and uniform properties.
Heat Treatment Process
MetalZenith employs controlled cooling from rolling temperature or normalization at 850-900°C followed by air cooling. Optional stress relief annealing at 600-650°C can be applied to reduce residual stresses and improve dimensional stability for precision structural applications.
Manufacturing Process
Our medium carbon steel production utilizes electric arc furnace melting with precise chemical composition control, followed by continuous casting and controlled rolling. Advanced process monitoring ensures consistent mechanical properties and dimensional accuracy throughout the production cycle.
Structural Quality Testing
Comprehensive testing includes weldability assessments per AWS D1.1, formability evaluations using bend tests, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance testing. Impact testing at various temperatures ensures reliable performance in structural applications.
Application Engineering
For building construction, our medium carbon steel provides excellent load-bearing capacity with good weldability. Bridge applications benefit from superior fatigue resistance and atmospheric corrosion performance. Machinery manufacturing utilizes the balanced strength and machinability, while automotive applications leverage the formability and crash performance characteristics.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.30 - 0.60 |
| Manganese (Mn) | 0.60 - 1.65 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Chromium (Cr) | 0.20 - 0.35 |
| Nickel (Ni) | 0.20 - 0.40 |
| Copper (Cu) | 0.20 - 0.40 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 345 - 450 |
| Tensile Strength (MPa) | 570 - 700 |
| Elongation (%) | 18 - 25 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 170 - 220 |
| Fatigue Strength (MPa) | 280 - 350 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1450 - 1520 |
| Thermal Conductivity (W/m·K) | 51.9 |
| Thermal Expansion (×10??/K) | 11.7 |
| Elastic Modulus (GPa) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Channels, Angles, Bars |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3000mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | ASTM A36, ASTM A572, EN 10025, JIS G3106 |
| Heat Treatment Condition | Hot Rolled, Normalized, or As-Required |
| Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing Medium Carbon Steel
Controlled Rolling Technology
MetalZenith utilizes advanced controlled rolling processes with precise temperature control to achieve optimal grain refinement in medium carbon steel. Our thermomechanical processing ensures uniform microstructure and enhanced mechanical properties throughout the material cross-section.
Comprehensive Structural Testing
Our medium carbon steel undergoes extensive testing including weldability assessments, formability evaluations, fatigue strength testing, and atmospheric corrosion resistance analysis. This ensures optimal performance in structural applications with verified long-term durability.
Custom Structural Solutions
MetalZenith provides tailored processing services including custom heat treatment, precision cutting, and surface preparation. Our technical team offers comprehensive support for structural design optimization and material selection guidance.
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