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Technical Specifications
Product Overview
Metallurgical Characteristics
GM190 cast steel exhibits a refined ferritic-pearlitic microstructure achieved through controlled cooling and normalization. The optimized alloy composition with chromium, molybdenum, and nickel additions provides enhanced hardenability, improved toughness, and superior structural integrity. The fine grain structure ensures excellent mechanical properties and consistent performance across varying section thicknesses.
Heat Treatment Process
MetalZenith employs a carefully controlled normalization process at 880-920°C followed by tempering at 580-620°C to achieve optimal mechanical properties. Our advanced heat treatment facilities ensure uniform temperature distribution and controlled cooling rates, resulting in consistent microstructure and enhanced dimensional stability for structural applications.
Manufacturing Excellence
Our GM190 production utilizes vacuum induction melting with electromagnetic stirring to ensure chemical homogeneity and minimize inclusion content. Advanced mold design and controlled solidification parameters optimize grain structure and eliminate casting defects. Post-casting stress relief and precision machining capabilities ensure dimensional accuracy and surface quality.
Structural Performance Testing
MetalZenith conducts comprehensive testing including welding procedure qualification, forming limit analysis, high-cycle fatigue testing, and accelerated corrosion testing. Our quality assurance program includes ultrasonic inspection, magnetic particle testing, and mechanical property verification to ensure compliance with structural engineering requirements and long-term performance reliability.
Application Engineering
For building construction, GM190 provides excellent load-bearing capacity and seismic resistance. In bridge engineering, the superior fatigue strength and weather resistance ensure long-term structural integrity. For machinery manufacturing, the combination of strength and machinability enables complex component fabrication. In vehicle construction, the high strength-to-weight ratio and crashworthiness meet safety requirements. General engineering applications benefit from the versatile properties and reliable performance across diverse operating conditions.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.25 - 0.35 |
| Manganese (Mn) | 0.60 - 1.00 |
| Silicon (Si) | 0.20 - 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | 0.40 - 0.80 |
| Molybdenum (Mo) | 0.15 - 0.30 |
| Nickel (Ni) | 0.30 - 0.60 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 520 |
| Tensile Strength (MPa) | 690 - 850 |
| Elongation (%) | ≥ 18 |
| Impact Energy at 20°C (J) | ≥ 35 |
| Hardness (HB) | 200 - 250 |
| Fatigue Strength (MPa) | 310 - 380 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| 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 | Castings, Structural Components, Custom Shapes |
| Weight Range | 5 kg - 50 tons |
| Section Thickness | 10 - 500mm |
| Maximum Dimensions | 8000 × 4000 × 3000mm |
| Standards Compliance | ASTM A216, AWS D1.1, EN 10293 |
| Heat Treatment Condition | Normalized and Tempered |
| Surface Finish | As-cast, Machined, Shot-blasted |
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Our Advantages in Processing GM190 Cast Steel
Advanced Vacuum Induction Melting
MetalZenith utilizes vacuum induction melting technology with precise temperature control and controlled atmosphere to achieve superior chemical homogeneity and reduced inclusion content. Our advanced casting process ensures optimal grain refinement and enhanced mechanical properties throughout the casting cross-section.
Comprehensive Structural Testing
Our GM190 cast steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. MetalZenith's quality assurance ensures optimal performance in structural applications with verified long-term durability.
Custom Casting Solutions
MetalZenith provides complete custom casting services with advanced CAD modeling, finite element analysis, and precision machining capabilities. Our technical team offers comprehensive support from design optimization to final inspection, ensuring perfect fit for your structural requirements.
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