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Technical Specifications
Product Overview
Metallurgical Characteristics
Q195 is a low carbon structural steel with a predominantly ferritic microstructure containing small amounts of pearlite. The low carbon content (≤0.12%) provides excellent ductility and weldability, while the controlled manganese content ensures adequate strength for structural applications. The fine-grained structure achieved through controlled rolling enhances both strength and toughness properties.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1050-1200°C followed by controlled cooling to achieve optimal mechanical properties. For enhanced formability, normalizing treatment at 860-900°C may be applied. The controlled cooling rate ensures uniform grain structure and eliminates internal stresses for improved dimensional stability.
Manufacturing Process Excellence
Our Q195 production utilizes advanced continuous casting technology followed by precision hot rolling mills with computerized process control. Real-time monitoring of temperature, reduction ratios, and cooling rates ensures consistent mechanical properties and surface quality. Post-rolling inspection includes ultrasonic testing and dimensional verification.
Specialized Quality Testing
MetalZenith conducts comprehensive testing protocols specific to structural applications including: welding performance evaluation using standard welding procedures, bend testing for formability assessment, rotating beam fatigue testing for cyclic loading applications, and accelerated atmospheric corrosion testing to evaluate long-term durability in outdoor environments.
Structural Application Considerations
For building structures, Q195 provides excellent weldability for frame connections and adequate strength for non-critical load-bearing components. In bridge engineering, it serves well for secondary structural elements and temporary works. For machinery manufacturing, the material offers good machinability and forming characteristics. In vehicle manufacturing, Q195 is ideal for chassis components requiring moderate strength and excellent formability. General engineering applications benefit from its cost-effectiveness and versatile processing capabilities.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | 0.30 - 0.65 |
| Silicon (Si) | ≤ 0.30 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.050 |
| Aluminum (Al) | ≥ 0.015 |
| Nitrogen (N) | ≤ 0.012 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 195 |
| Tensile Strength (MPa) | 315 - 430 |
| Elongation (%) | ≥ 33 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 105 - 140 |
| Fatigue Strength (MPa) | 140 - 160 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 54.0 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Angles, Channels, Beams |
| Thickness Range | 1.5 - 50mm |
| Width Range | 600 - 2500mm |
| Length Range | 2000 - 12000mm |
| Standards Compliance | GB/T 700, ASTM A36 Equivalent, JIS G3101 |
| Surface Condition | Hot Rolled, Pickled, or Shot Blasted |
| Delivery Condition | Hot Rolled, Normalized |
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Our Advantages in Processing Q195 Steel
Controlled Hot Rolling Technology
MetalZenith utilizes advanced controlled hot rolling with precise temperature monitoring and cooling rate control to achieve optimal grain refinement in Q195 steel. Our sophisticated rolling process ensures consistent mechanical properties and superior surface finish throughout the material thickness.
Comprehensive Structural Testing
Our Q195 steel undergoes extensive testing protocols including welding performance evaluation, bend testing for formability assessment, fatigue strength analysis, and atmospheric corrosion resistance testing. This comprehensive approach ensures optimal performance in structural applications.
Custom Processing & Technical Support
MetalZenith provides tailored processing solutions including precision cutting, forming, and heat treatment services for Q195 steel. Our technical team offers expert consultation on structural design optimization and application-specific material selection.
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