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Technical Specifications
Product Overview
Metallurgical Characteristics
AISI 1065 is a eutectoid high carbon steel with approximately 0.65% carbon content, placing it near the eutectoid composition. The microstructure in the annealed condition consists of pearlite with some ferrite, providing good machinability while maintaining adequate strength. Upon heat treatment, this steel develops a martensitic structure with excellent hardness and spring properties.
Heat Treatment Process
MetalZenith employs precise heat treatment protocols for AISI 1065 steel. Austenitizing is performed at 790-820°C, followed by rapid quenching in oil or water to achieve full hardness. Tempering at 400-500°C provides the optimal balance of hardness, strength, and toughness for spring applications. Our controlled atmosphere furnaces ensure consistent results and minimal decarburization.
Manufacturing Process Excellence
Our manufacturing process begins with carefully selected raw materials melted in electric arc furnaces with precise chemistry control. Secondary refining processes including ladle metallurgy ensure optimal cleanliness and homogeneity. Hot rolling is performed using computer-controlled mills to achieve precise dimensions and superior surface quality. Cold drawing operations provide enhanced mechanical properties and dimensional accuracy.
Quality Standards & Testing
MetalZenith maintains strict quality control throughout production, including continuous casting monitoring, ultrasonic testing for internal soundness, and comprehensive mechanical property verification. Our quality management system complies with ISO 9001:2015, AS9100D for aerospace applications, and IATF 16949 for automotive customers. Each shipment includes certified test reports documenting chemical composition, mechanical properties, and dimensional compliance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.60 - 0.70 |
| Manganese (Mn) | 0.60 - 0.90 |
| Silicon (Si) | 0.15 - 0.30 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | ≤ 0.25 |
| Nickel (Ni) | ≤ 0.25 |
| Molybdenum (Mo) | ≤ 0.06 |
| Copper (Cu) | ≤ 0.30 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Annealed Condition | Hardened & Tempered |
|---|---|---|
| Tensile Strength | 630-780 MPa | 1380-1650 MPa |
| Yield Strength | 370-450 MPa | 1240-1480 MPa |
| Elongation (%) | 12-18 | 8-12 |
| Reduction of Area (%) | 35-45 | 25-35 |
| Hardness (HB) | 187-229 | 388-444 |
| Hardness (HRC) | - | 40-47 |
| Impact Energy (Charpy V) | 25-35 J | 15-25 J |
| Fatigue Limit | 280-320 MPa | 550-650 MPa |
| Modulus of Elasticity | 200-210 GPa | 200-210 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1460-1510°C |
| Thermal Conductivity (20°C) | 46-50 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 11.5×10-6/K |
| Specific Heat Capacity | 460-480 J/kg·K |
| Electrical Resistivity (20°C) | 0.18-0.22 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 770°C |
| Poisson's Ratio | 0.27-0.30 |
| Shear Modulus | 80-85 GPa |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, flat bars, square bars, wire, strip, sheet, plate |
| Round Bar Diameter | 6mm - 300mm |
| Flat Bar Dimensions | 10×3mm - 200×50mm |
| Wire Diameter | 0.5mm - 12mm |
| Sheet/Plate Thickness | 0.5mm - 100mm |
| Length | Up to 12 meters (custom lengths available) |
| Surface Finish | Hot rolled, cold drawn, peeled, ground, polished |
| Tolerance | h9, h10, h11 (precision tolerance available) |
| Standards | ASTM A684, SAE J403, EN 10132-4, JIS G4801 |
| Heat Treatment | Annealed, normalized, hardened & tempered |
Let Us Create Success for Your Project
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Our Advantages in Processing AISI 1065
Advanced Electric Arc Furnace Technology
MetalZenith utilizes cutting-edge electric arc furnace technology with precise temperature control and automated charging systems, ensuring optimal carbon content distribution and minimal impurities in AISI 1065 steel production for superior mechanical properties.
Comprehensive Quality Control Systems
Our state-of-the-art testing laboratory features optical emission spectrometers, universal testing machines, and metallographic equipment, providing complete chemical analysis, mechanical property verification, and microstructural examination for every batch of AISI 1065 steel.
Custom Processing & Global Supply Chain
MetalZenith offers extensive customization capabilities including precision heat treatment, specialized surface finishes, and custom dimensions. Our global distribution network ensures reliable delivery of AISI 1065 steel products to customers worldwide with comprehensive technical support.
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