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
Fe 430 (S275JR) exhibits a predominantly ferritic-pearlitic microstructure with fine grain size achieved through controlled hot rolling. The balanced carbon and manganese content provides optimal combination of strength and ductility, while low phosphorus and sulfur levels ensure excellent weldability and formability for structural applications.
Heat Treatment Process
MetalZenith employs controlled hot rolling at temperatures between 1050-1200°C followed by controlled cooling to achieve desired mechanical properties. Optional normalization at 880-920°C can be applied for enhanced grain refinement and stress relief, particularly beneficial for heavy section applications.
Manufacturing Process
Our advanced manufacturing process includes electric arc furnace melting with precise chemistry control, continuous casting for improved homogeneity, and multi-pass hot rolling with computerized process control. Real-time monitoring ensures consistent mechanical properties and dimensional accuracy throughout production.
Structural Quality Testing
MetalZenith conducts comprehensive testing including weldability assessments per AWS D1.1, bend testing for formability evaluation, rotating beam fatigue testing, and accelerated atmospheric corrosion testing. Our quality control ensures reliable performance in structural applications with full material traceability.
Application Engineering
For building construction, Fe 430 provides excellent beam and column performance with superior weldability. In bridge engineering, its fatigue resistance and atmospheric corrosion properties ensure long-term durability. For machinery manufacturing, the steel offers optimal machinability and forming characteristics. In vehicle construction, its crash energy absorption and joining capabilities meet safety requirements. General engineering applications benefit from its versatile processing capabilities and cost-effectiveness.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.21 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 0.55 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
| Nitrogen (N) | ≤ 0.012 |
| Copper (Cu) | ≤ 0.55 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 275 |
| Tensile Strength (MPa) | 410 - 560 |
| Elongation (%) | ≥ 23 |
| Impact Energy at 20°C (J) | ≥ 27 |
| Hardness (HB) | 120 - 170 |
| 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) | 12.0 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Beams, Angles, Channels, Bars |
| Thickness Range | 3 - 80mm |
| Width Range | 1000 - 3200mm |
| Length Range | 6000 - 12000mm |
| Standards Compliance | EN 10025-2, ASTM A36, JIS G3101 SS400 |
| Delivery Condition | Hot Rolled, Normalized (optional) |
| Surface Finish | Mill Scale, Shot Blasted, Pickled |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing Fe 430 Steel (S275JR)
Controlled Hot Rolling Technology
MetalZenith utilizes advanced controlled hot rolling with precise temperature monitoring and cooling rates to achieve optimal grain refinement and mechanical properties. Our state-of-the-art rolling mills ensure consistent thickness tolerance and superior surface finish for enhanced fabrication performance.
Comprehensive Structural Testing
Our Fe 430 steel undergoes extensive testing including weldability assessments, bend testing for formability, fatigue strength evaluation, and atmospheric corrosion resistance testing. MetalZenith's quality assurance ensures reliable performance in demanding structural applications with full traceability documentation.
Custom Fabrication Solutions
MetalZenith offers comprehensive custom processing services including precision cutting, forming, welding preparation, and surface treatment. Our technical support team provides expert guidance on structural design optimization and fabrication best practices to maximize project efficiency.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
