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Technical Specifications
Product Overview
Metallurgical Characteristics
S136 is a quenched and tempered alloy structural steel featuring a fine-grained martensitic microstructure with tempered carbide precipitation. The controlled addition of chromium, molybdenum, and nickel provides enhanced hardenability and improved mechanical properties. The optimized carbon content ensures excellent strength-to-weight ratio while maintaining good weldability for structural applications.
Heat Treatment Process
MetalZenith employs precise quenching from 850-900°C followed by tempering at 580-620°C to achieve optimal mechanical properties in S136 steel. Our controlled cooling rates and temperature monitoring ensure uniform hardness distribution and stress relief, critical for structural integrity in demanding applications.
Manufacturing Process
Our S136 production utilizes electric arc furnace melting with secondary refining processes including ladle furnace treatment and vacuum degassing. MetalZenith's continuous casting and controlled rolling technology ensures exceptional cleanliness and mechanical property uniformity throughout the material cross-section.
Specialized Quality Testing
S136 steel undergoes comprehensive testing including weldability assessment per AWS standards, forming performance evaluation, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance analysis. Our quality control includes ultrasonic inspection, macro-etch testing, and grain size analysis to ensure structural reliability.
Structural Application Considerations
For building construction, S136 provides excellent load-bearing capacity with superior seismic resistance. In bridge engineering, the material's fatigue strength and atmospheric corrosion resistance ensure long-term durability. For machinery manufacturing, the combination of high strength and good machinability enables complex structural components. In vehicle manufacturing, S136 offers optimal strength-to-weight ratio for chassis and frame applications, while general engineering benefits from its versatile forming and welding characteristics.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.35 - 0.42 |
| Manganese (Mn) | 1.35 - 1.65 |
| Silicon (Si) | 0.80 - 1.20 |
| Chromium (Cr) | 1.00 - 1.50 |
| Molybdenum (Mo) | 0.15 - 0.30 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Nickel (Ni) | 0.25 - 0.45 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | 1030 - 1180 |
| Tensile Strength (MPa) | 1150 - 1300 |
| Elongation (%) | ≥ 12 |
| Impact Energy at 20°C (J) | ≥ 35 |
| Hardness (HRC) | 36 - 40 |
| Fatigue Strength (MPa) | 450 - 520 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.80 |
| Melting Point (°C) | 1420 - 1460 |
| Thermal Conductivity (W/m·K) | 42.5 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.28 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Beams, Channels, Angles |
| Thickness Range | 3 - 200mm |
| Width Range | 1000 - 3000mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | ASTM A514, EN 10025, JIS G3106 |
| Heat Treatment Condition | Quenched and Tempered |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing S136 Steel
Advanced Thermomechanical Processing
MetalZenith utilizes controlled rolling technology with precise temperature control and optimized cooling rates to achieve superior grain refinement in S136 steel. Our advanced processing ensures consistent mechanical properties throughout the material thickness, enhancing structural integrity and weldability for critical construction applications.
Comprehensive Structural Testing
Our S136 steel undergoes extensive testing protocols including weldability assessment, forming performance evaluation, fatigue strength testing, and atmospheric corrosion resistance analysis. MetalZenith's quality assurance ensures optimal performance in structural applications with verified impact toughness and long-term durability.
Custom Structural Solutions
MetalZenith provides comprehensive customization services for S136 steel including precision cutting, forming, welding preparation, and surface treatment. Our technical team offers expert consultation for structural design optimization and material selection, ensuring optimal performance in building, bridge, and machinery applications.
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