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Technical Specifications
Product Overview
Metallurgical Characteristics
HSLA 100 features a fine-grained tempered martensitic microstructure achieved through controlled quenching and tempering processes. The strategic addition of microalloying elements including vanadium, niobium, and molybdenum promotes precipitation strengthening and grain refinement, resulting in exceptional strength-to-weight ratios while maintaining excellent toughness and formability characteristics essential for high-strength applications.
Heat Treatment Process
MetalZenith employs precise quenching from 900-950°C followed by controlled tempering at 580-650°C to achieve optimal mechanical properties. Our advanced heat treatment protocols include real-time temperature monitoring and controlled cooling rates to ensure uniform microstructure development and consistent mechanical properties throughout the material cross-section.
Manufacturing Excellence
MetalZenith's state-of-the-art production facilities utilize thermomechanical controlled processing (TMCP) combined with advanced ladle metallurgy to achieve superior cleanliness and microstructural control. Our integrated approach includes continuous casting, controlled rolling, and precision heat treatment to deliver HSLA 100 steel with exceptional consistency and reliability for critical structural applications.
Specialized Quality Testing
MetalZenith conducts comprehensive testing protocols specific to high-strength applications including formability assessment through limiting dome height (LDH) testing, weldability evaluation using controlled thermal severity (CTS) testing, hydrogen-induced cracking resistance testing per NACE TM0284, and delayed fracture susceptibility analysis. These specialized tests ensure optimal performance in demanding automotive and structural applications.
Application-Specific Considerations
For automotive manufacturing, HSLA 100 provides excellent crash energy absorption and lightweighting potential. In building construction, its high strength enables reduced section sizes and improved seismic performance. Bridge engineering applications benefit from superior fatigue resistance and long-term durability. Crane and lifting equipment applications leverage the exceptional strength-to-weight ratio for increased payload capacity. Pressure vessel applications utilize the material's excellent through-thickness properties and resistance to brittle fracture.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 0.80 - 1.50 |
| Silicon (Si) | 0.15 - 0.50 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 0.40 - 0.80 |
| Molybdenum (Mo) | 0.15 - 0.35 |
| Vanadium (V) | 0.03 - 0.08 |
| Niobium (Nb) | 0.020 - 0.050 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 690 |
| Tensile Strength (MPa) | 760 - 895 |
| Elongation (%) | ≥ 18 |
| Impact Energy at -40°C (J) | ≥ 34 |
| Fatigue Strength (MPa) | ≥ 310 |
| Hardness (HB) | 230 - 280 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| Thermal Conductivity (W/m·K) | 44.5 |
| Thermal Expansion (×10??/K) | 12.3 |
| Elastic Modulus (GPa) | 205 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Structural Sections, Forgings |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A514, ASTM A709 Grade 100, AASHTO M270 |
| Heat Treatment Condition | Quenched and Tempered or TMCP |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing HSLA 100 Steel
Advanced Thermomechanical Processing
MetalZenith utilizes state-of-the-art TMCP technology with controlled rolling temperatures and precise cooling rates to achieve optimal microstructure refinement. Our advanced processing ensures superior grain structure, enhanced precipitation strengthening, and consistent mechanical properties throughout the material thickness for maximum performance reliability.
Comprehensive High-Strength Testing
MetalZenith conducts extensive specialized testing including formability analysis, weldability assessment, hydrogen-induced cracking resistance evaluation, and delayed fracture testing. Our rigorous quality protocols ensure HSLA 100 steel meets the demanding requirements of high-stress applications in automotive and structural engineering.
Custom Engineering Solutions
MetalZenith provides comprehensive custom processing services including precision cutting, heat treatment optimization, and application-specific property enhancement. Our technical team offers expert consultation for automotive lightweighting, structural optimization, and specialized forming requirements to maximize performance in critical applications.
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