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
SA537 Class 1 is a normalized carbon-manganese steel with enhanced strength properties achieved through controlled chemical composition and thermomechanical processing. The steel exhibits a fine-grained ferritic-pearlitic microstructure that provides excellent combination of strength, toughness, and weldability. The manganese content contributes to solid solution strengthening while maintaining good ductility and impact resistance at low temperatures.
Heat Treatment Process
MetalZenith employs controlled normalizing heat treatment at 900-950°C followed by air cooling to achieve optimal mechanical properties. This process refines the grain structure and ensures uniform distribution of carbides throughout the matrix. Optional stress relief annealing at 580-650°C may be performed to reduce residual stresses in welded components. Our advanced heat treatment facilities feature precise temperature control and atmosphere management systems.
Manufacturing Process
Production begins with electric arc furnace melting using carefully selected raw materials, followed by ladle refining and vacuum degassing to achieve superior steel cleanliness. Continuous casting produces high-quality billets that undergo controlled rolling in our state-of-the-art rolling mills. The thermomechanical controlled processing (TMCP) ensures fine grain structure and optimal mechanical properties. Final processing includes precision cutting, surface treatment, and comprehensive quality inspection.
Quality Standards and Certifications
All SA537 Class 1 products manufactured by MetalZenith comply with ASTM A537/A537M and ASME SA537 specifications. Our quality management system is certified to ISO 9001:2015, and we maintain ASME 'S' and 'U' stamp certifications for pressure vessel applications. Each product shipment includes mill test certificates with complete chemical analysis, mechanical test results, and ultrasonic inspection reports. Third-party inspection and testing services are available upon request to meet specific customer requirements.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.24 |
| Manganese (Mn) | 0.70 - 1.35 |
| Silicon (Si) | 0.15 - 0.50 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | ≤ 0.25 |
| Nickel (Ni) | ≤ 0.25 |
| Molybdenum (Mo) | ≤ 0.08 |
| Copper (Cu) | ≤ 0.35 |
| Aluminum (Al) | ≥ 0.020 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 485 - 620 MPa |
| Yield Strength (0.2% offset) | ≥ 345 MPa |
| Elongation in 200mm | ≥ 18% |
| Elongation in 50mm | ≥ 21% |
| Brinell Hardness (HB) | 137 - 187 |
| Impact Energy (Charpy V-notch at 0°C) | ≥ 27 J |
| Impact Energy (Charpy V-notch at -18°C) | ≥ 20 J |
| Reduction of Area | ≥ 38% |
| Fatigue Limit (107 cycles) | 240 MPa |
| Modulus of Elasticity | 200 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1510°C |
| Thermal Conductivity (at 20°C) | 52 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 12.5×10-6/K |
| Specific Heat Capacity | 460 J/kg·K |
| Electrical Resistivity | 0.18 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Poisson's Ratio | 0.27 - 0.30 |
| Thermal Diffusivity | 14.4 mm²/s |
| Curie Temperature | 770°C |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Plates, Sheets, Bars, Forgings, Coils |
| Plate Thickness | 6mm - 200mm |
| Sheet Thickness | 0.5mm - 6mm |
| Width Range | 1000mm - 3000mm |
| Length Range | 2000mm - 12000mm |
| Standards Compliance | ASTM A537, ASME SA537, EN 10028-3 |
| Surface Finish | Hot Rolled, Normalized, Pickled, Shot Blasted |
| Edge Condition | Mill Edge, Sheared, Flame Cut, Machined |
| Thickness Tolerance | ±0.3mm (for plates ≤20mm) |
| Width Tolerance | ±5mm |
| Length Tolerance | ±10mm |
| Flatness | ≤5mm/m |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing SA537 Class 1
Advanced Electric Arc Furnace Technology
MetalZenith utilizes cutting-edge electric arc furnace technology with precise temperature control and advanced ladle metallurgy systems, ensuring consistent chemical composition and superior steel cleanliness for SA537 Class 1 production.
Comprehensive Quality Control Systems
Our integrated quality management system features real-time monitoring, automated testing equipment, and certified laboratory facilities, guaranteeing that every SA537 Class 1 product meets or exceeds ASTM specifications with full traceability documentation.
Custom Processing and Global Supply
MetalZenith offers extensive customization capabilities including precision cutting, heat treatment, and surface finishing services, backed by our global distribution network ensuring timely delivery of SA537 Class 1 steel worldwide.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
