20 Years Experience | 1000+ Brand Partners | Full Customization
We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.
Technical Specifications
Product Overview
Metallurgical Characteristics
St 35 is a normalized carbon structural steel with a predominantly ferritic-pearlitic microstructure. The controlled carbon content and manganese addition provide optimal balance between strength and ductility, while maintaining excellent weldability for structural fabrication. The fine-grain structure achieved through controlled rolling enhances impact toughness and fatigue resistance.
Heat Treatment Process
MetalZenith employs controlled rolling followed by normalization at 850-900°C with controlled cooling rates to achieve uniform microstructure and stress relief. This process ensures consistent mechanical properties throughout the material cross-section and optimizes weldability for structural applications.
Manufacturing Excellence
Our advanced manufacturing process includes continuous casting, controlled rolling with precise temperature monitoring, and automated quality control systems. Real-time chemical composition analysis and mechanical property testing ensure every batch meets stringent structural steel requirements.
Structural Quality Testing
MetalZenith conducts comprehensive testing specific to structural applications including weldability testing per AWS D1.1, bend testing for formability assessment, fatigue testing under cyclic loading, and atmospheric corrosion resistance evaluation. Ultrasonic testing ensures internal soundness for critical structural components.
Application Engineering
For building construction, St 35 provides excellent performance in load-bearing structures with superior weldability for field connections. In bridge engineering, the material's fatigue resistance and atmospheric corrosion properties ensure long-term durability. For machinery manufacturing, the balanced mechanical properties enable efficient fabrication of equipment frames and housings. In vehicle construction, the formability and strength characteristics support lightweight yet robust chassis designs.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.17 - 0.20 |
| Manganese (Mn) | 0.35 - 0.80 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
| Aluminum (Al) | ≥ 0.020 |
| Nitrogen (N) | ≤ 0.012 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 235 |
| Tensile Strength (MPa) | 340 - 470 |
| Elongation (%) | ≥ 25 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 105 - 140 |
| Fatigue Strength (MPa) | 160 - 180 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1510 - 1540 |
| Thermal Conductivity (W/m·K) | 49.8 |
| Thermal Expansion (×10??/K) | 11.5 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 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 equivalent |
| Heat Treatment Condition | Normalized or Hot Rolled |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing St 35 Steel
Controlled Rolling and Normalization
MetalZenith utilizes advanced controlled rolling techniques followed by precise normalization at optimal temperatures to achieve uniform grain structure and consistent mechanical properties. Our process ensures excellent weldability and formability essential for structural applications.
Comprehensive Structural Testing
Our quality assurance includes specialized testing for structural applications: weldability testing per AWS standards, forming limit analysis, fatigue strength evaluation, and atmospheric corrosion resistance assessment to ensure long-term structural integrity.
Custom Fabrication Services
MetalZenith offers complete custom processing including cutting, forming, welding preparation, and surface treatment. Our technical team provides engineering support for structural design optimization and material selection guidance.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
