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Technical Specifications
Product Overview
Metallurgical Characteristics
AISI 1075 is a high-carbon, plain carbon steel containing 0.70-0.80% carbon, which provides excellent hardenability and wear resistance. The steel exhibits a pearlitic microstructure in the annealed condition, transforming to martensite upon proper heat treatment. MetalZenith's controlled manufacturing process ensures uniform carbide distribution and optimal grain structure for superior mechanical properties.
Heat Treatment Process
MetalZenith employs precision-controlled heat treatment cycles optimized for AISI 1075. Austenitizing is performed at 790-820°C, followed by rapid quenching in oil or water to achieve maximum hardness. Tempering at 150-650°C allows for hardness adjustment between 42-50 HRC depending on application requirements. Our computer-controlled furnaces ensure consistent temperature uniformity and reproducible results.
Manufacturing Process
Our AISI 1075 steel is produced using electric arc furnace technology with secondary refining processes including ladle metallurgy and vacuum degassing. Continuous casting ensures homogeneous chemical composition, while controlled rolling and cooling optimize the microstructure. MetalZenith's quality control system monitors every stage from raw material selection through final inspection.
Quality Standards & Certifications
All AISI 1075 products manufactured by MetalZenith comply with ASTM A684, ASTM A29, and equivalent international standards including EN 10132 and JIS G4801. Our ISO 9001:2015 certified quality management system ensures consistent product quality through comprehensive testing including chemical analysis, mechanical property verification, dimensional inspection, and metallographic examination. Complete mill test certificates and material traceability documentation are provided with every shipment.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.70 - 0.80 |
| Manganese (Mn) | 0.40 - 0.70 |
| Silicon (Si) | 0.15 - 0.30 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | ≤ 0.40 |
| Nickel (Ni) | ≤ 0.30 |
| Molybdenum (Mo) | ≤ 0.10 |
| Copper (Cu) | ≤ 0.30 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value | Condition |
|---|---|---|
| Tensile Strength | 1380 - 1520 MPa | Hardened & Tempered |
| Yield Strength | 1240 - 1380 MPa | Hardened & Tempered |
| Elongation | 8 - 12% | Hardened & Tempered |
| Reduction of Area | 25 - 35% | Hardened & Tempered |
| Hardness (HRC) | 42 - 50 | Hardened & Tempered |
| Hardness (HB) | 180 - 220 | Annealed |
| Impact Energy (Charpy V) | 15 - 25 J | Room Temperature |
| Fatigue Limit | 620 - 690 MPa | 107 cycles |
| Elastic Modulus | 210 GPa | Room Temperature |
🔬 Physical Properties
| Property | Value | Temperature |
|---|---|---|
| Density | 7.85 g/cm³ | 20°C |
| Melting Point | 1460 - 1500°C | - |
| Thermal Conductivity | 46 W/m·K | 20°C |
| Thermal Expansion Coefficient | 12.1×10-6/K | 20-100°C |
| Specific Heat Capacity | 486 J/kg·K | 20°C |
| Electrical Resistivity | 0.18 µΩ·m | 20°C |
| Magnetic Permeability | Ferromagnetic | 20°C |
| Curie Temperature | 770°C | - |
| Poisson's Ratio | 0.27 - 0.30 | 20°C |
📏 Product Specifications
| Specification | Available Options | Standards |
|---|---|---|
| Product Forms | Round Bars, Flat Bars, Square Bars, Strips, Sheets, Wire | ASTM A684 |
| Round Bar Diameter | 6mm - 300mm | ASTM A29 |
| Flat Bar Dimensions | Thickness: 3-50mm, Width: 20-300mm | ASTM A108 |
| Sheet Thickness | 0.5mm - 12mm | ASTM A1011 |
| Wire Diameter | 0.8mm - 12mm | ASTM A228 |
| Length | Up to 12 meters (custom lengths available) | Customer Specification |
| Surface Finish | Hot Rolled, Cold Drawn, Peeled, Ground, Polished | ASTM A29 |
| Dimensional Tolerance | ±0.1mm to ±0.5mm (depending on size) | ASTM A29 |
| Heat Treatment Condition | Annealed, Normalized, Hardened & Tempered | Customer Requirement |
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Our Advantages in Processing AISI 1075
Advanced Heat Treatment Technology
MetalZenith employs state-of-the-art controlled atmosphere furnaces and precision quenching systems to achieve optimal hardness and microstructure in AISI 1075 steel. Our proprietary heat treatment processes ensure consistent mechanical properties and superior spring characteristics throughout the material cross-section.
Comprehensive Quality Control Systems
Our ISO 9001:2015 certified facility features advanced testing equipment including spectrometers, universal testing machines, and metallographic analysis systems. Every batch undergoes rigorous chemical composition verification, mechanical property testing, and microstructural examination to guarantee compliance with ASTM A684 standards.
Custom Processing & Global Supply Chain
MetalZenith offers extensive customization capabilities including precision cutting, surface treatments, and specialized heat treatment cycles tailored to specific applications. Our global distribution network ensures reliable delivery worldwide, supported by comprehensive technical documentation and engineering support services.
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