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Technical Specifications
Product Overview
Metallurgical Characteristics
Rebar Steel features a predominantly ferritic-pearlitic microstructure optimized for structural reinforcement applications. The controlled carbon content and manganese addition provide excellent strength-to-weight ratio while maintaining superior ductility. The deformed surface pattern with transverse ribs ensures optimal mechanical bond with concrete, critical for load transfer in reinforced concrete structures.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1050-1150°C followed by controlled cooling to achieve optimal mechanical properties. The thermomechanical processing includes precise temperature control during rolling and controlled cooling rates to develop the required yield strength while maintaining excellent ductility and weldability characteristics.
Manufacturing Process
Our state-of-the-art production facility utilizes continuous casting followed by hot rolling mills with advanced rib rolling technology. The process includes real-time dimensional control, automated surface inspection, and precision cutting systems. Quality control checkpoints ensure consistent rib geometry, straightness tolerance, and mechanical properties throughout production.
Structural Quality Testing
MetalZenith conducts comprehensive testing specific to structural applications including: weldability assessment per AWS D1.4 standards, bend testing for ductility verification, fatigue strength evaluation under cyclic loading conditions, and atmospheric corrosion resistance testing. Additional tests include bond strength evaluation and seismic performance validation for earthquake-resistant construction.
Application Engineering
For building construction applications, our rebar provides exceptional load-bearing capacity and seismic resistance. In bridge engineering, the superior fatigue strength ensures long-term durability under dynamic loading. For mechanical manufacturing and vehicle construction, the excellent weldability and formability enable complex structural assemblies. General engineering applications benefit from the consistent quality and reliable performance in diverse environmental conditions.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.20 - 0.30 |
| Manganese (Mn) | 0.60 - 1.50 |
| Silicon (Si) | 0.15 - 0.35 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Chromium (Cr) | 0.10 - 0.30 |
| Nickel (Ni) | ≤ 0.30 |
| Copper (Cu) | ≤ 0.35 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 420 |
| Tensile Strength (MPa) | 620 - 780 |
| Elongation (%) | ≥ 14 |
| Impact Toughness (J) | ≥ 35 |
| Hardness (HB) | 180 - 250 |
| Bend Test Diameter | 3d (180°) |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 50.2 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 200 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Sizes | #3 to #18 (10mm to 57mm diameter) |
| Standard Lengths | 6m, 9m, 12m, 18m |
| Rib Pattern | Deformed with transverse ribs |
| Surface Condition | Hot rolled, mill scale removed |
| Standards Compliance | ASTM A615, ASTM A706, ACI 318 |
| Grade Options | Grade 60, Grade 75, Grade 80 |
| Weldability | Weldable per AWS D1.4 |
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Our Advantages in Processing Rebar Steel
Advanced Hot Rolling Technology
MetalZenith employs precision hot rolling with controlled cooling technology and real-time temperature monitoring to achieve optimal rib pattern and enhanced mechanical properties. Our advanced processing ensures consistent yield strength and superior bond characteristics throughout the entire bar length.
Comprehensive Structural Testing
Our rigorous quality testing program includes specialized structural assessments: weldability testing per AWS D1.4, bend testing for ductility verification, fatigue strength evaluation for cyclic loading, and atmospheric corrosion resistance testing to ensure long-term durability in concrete environments.
Custom Engineering Solutions
MetalZenith provides comprehensive custom processing services including precision cutting, bending, and fabrication to project specifications. Our technical support team offers structural engineering consultation and material optimization for specific construction requirements.
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