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Technical Specifications
Product Overview
Metallurgical Characteristics
St 37 is a low carbon structural steel with a predominantly ferritic-pearlitic microstructure. The controlled carbon content and balanced chemical composition provide excellent weldability and formability while maintaining adequate strength for structural applications. The fine grain 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. Normalizing treatment at 850-900°C may be applied for enhanced uniformity and stress relief, particularly for thick sections and critical structural components.
Manufacturing Process
Our advanced manufacturing process includes electric arc furnace melting with precise chemical control, continuous casting for improved homogeneity, and multi-pass hot rolling with computerized process control. Quality monitoring throughout production ensures consistent mechanical properties and dimensional accuracy.
Structural Quality Testing
Comprehensive testing protocols include welding performance evaluation using standard procedures, bend testing for formability assessment, rotating beam fatigue testing, and accelerated atmospheric corrosion testing. Impact testing at various temperatures ensures adequate toughness for structural applications.
Application Engineering
For building structures, St 37 provides excellent balance of strength and ductility for seismic resistance. In bridge engineering, its superior weldability enables complex joint designs. For mechanical manufacturing, the material's formability allows efficient fabrication of components. In vehicle manufacturing, the steel's crash energy absorption characteristics enhance safety performance. General engineering applications benefit from the material's versatility and cost-effectiveness.
🧪 Chemical Composition
Element | Composition (%) |
---|---|
Carbon (C) | ≤ 0.17 |
Manganese (Mn) | ≤ 1.40 |
Silicon (Si) | ≤ 0.40 |
Phosphorus (P) | ≤ 0.040 |
Sulfur (S) | ≤ 0.040 |
Nitrogen (N) | ≤ 0.012 |
Copper (Cu) | ≤ 0.55 |
⚙️ Mechanical Properties
Property | Value |
---|---|
Yield Strength (MPa) | 235 - 275 |
Tensile Strength (MPa) | 360 - 510 |
Elongation (%) | ≥ 26 |
Impact Energy at 20°C (J) | ≥ 27 |
Hardness (HB) | 110 - 150 |
Fatigue Strength (MPa) | 180 - 220 |
🔬 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) | 11.5 |
Elastic Modulus (GPa) | 210 |
Poisson's Ratio | 0.30 |
📏 Product Specifications
Specification | Details |
---|---|
Available Forms | Plates, Sheets, Bars, Beams, Angles, Channels |
Thickness Range | 3 - 80mm |
Width Range | 1000 - 3000mm |
Length Range | 6000 - 12000mm |
Standards Compliance | DIN 17100, EN 10025, ASTM A36 |
Heat Treatment Condition | Hot Rolled, Normalized |
Surface Finish | Mill Scale, Pickled, Shot Blasted |
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Our Advantages in Processing St 37 Steel

Controlled Hot Rolling Technology
MetalZenith utilizes advanced controlled hot rolling processes with precise temperature control and optimized reduction schedules to achieve uniform grain structure and consistent mechanical properties. Our state-of-the-art rolling technology ensures excellent surface finish and dimensional accuracy for structural applications.
Comprehensive Structural Testing
Our quality assurance program includes specialized testing for structural applications: welding performance evaluation, bend testing for formability, fatigue strength assessment, and atmospheric corrosion resistance testing. Each batch undergoes rigorous inspection to ensure optimal performance in construction and engineering applications.


Custom Fabrication Services
MetalZenith offers comprehensive custom processing services including cutting, forming, welding preparation, and surface treatment. Our technical team provides expert consultation for structural design optimization and material selection to meet specific project requirements and building codes.
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