AISI 1045 Steel, as cold drawn

AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: AISI 1045 Steel - Cold Drawn Round Bar (16-22 mm / 0.625-0.875 in)** --- #### **1. Product Overview** AISI 1045 Cold Drawn Round Bar in the 16-22 mm (0.625-0.875 in) diameter range is a precision-engineered medium-carbon steel product produced through a cold drawing process. This manufacturing method significantly enhances mechanical properties, dimensional accuracy, and surface finish while maintaining the excellent hardenability characteristic of AISI 1045 steel. The cold working induces strain hardening, providing superior yield strength and a smooth, scale-free surface ideal for precision mechanical components requiring tight tolerances and reliable performance. --- #### **2. Key Characteristics & Advantages** - **Enhanced Mechanical Properties:** Cold working increases yield strength by 35-50% over hot-rolled material - **Superior Dimensional Accuracy:** Maintains tight diameter tolerances (±0.075 mm / ±0.003 in typical) - **Excellent Surface Finish:** Produces bright, smooth surface (1.6-3.2 µm Ra / 63-125 µin Ra) - **Good Hardenability:** Responds well to quenching and tempering for additional strength - **Cost-Effective Precision:** Reduces machining requirements for finished components - **Improved Straightness:** Essential for high-speed rotating applications - **Consistent Quality:** Uniform properties throughout length and cross-section --- #### **3. Chemical Composition** | Element | Composition Range (%) | Standard Reference | |---------|----------------------|-------------------| | **Carbon (C)** | 0.43 - 0.50 | ASTM A108 / SAE J403 | | **Manganese (Mn)** | 0.60 - 0.90 | ASTM A108 / SAE J403 | | **Phosphorus (P)** | ≤ 0.040 | ASTM A108 / SAE J403 | | **Sulfur (S)** | ≤ 0.050 | ASTM A108 / SAE J403 | | **Silicon (Si)** | 0.15 - 0.35 | ASTM A108 / SAE J403 | | **Iron (Fe)** | Balance | - | --- #### **4. Typical Mechanical Properties (Cold Drawn Condition)** | Property | Value Range | Test Standard | |----------|-------------|---------------| | **Tensile Strength** | 690 - 830 MPa (100 - 120 ksi) | ASTM A370 | | **Yield Strength (0.2% offset)** | 585 - 725 MPa (85 - 105 ksi) | ASTM A370 | | **Elongation in 50 mm (2")** | 12% - 16% | ASTM A370 | | **Reduction of Area** | 35% - 45% | ASTM A370 | | **Brinell Hardness** | 207 - 269 HB | ASTM E10 | | **Surface Roughness (Ra)** | 1.6 - 3.2 µm (63 - 125 µin) | ASME B46.1 | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | ASTM E111 | | **Shear Modulus** | 80 GPa (11,600 ksi) | - | | **Poisson's Ratio** | 0.29 | - | | **Machinability Rating** | ~40% (relative to 1212 steel) | - | --- #### **5. Dimensional Specifications (16-22 mm Range)** | Diameter (mm) | Diameter (in) | Tolerance (±mm) | Tolerance (±in) | |---------------|---------------|-----------------|-----------------| | 16 | 0.625 | 0.10 | 0.004 | | 18 | 0.709 | 0.10 | 0.004 | | 20 | 0.787 | 0.10 | 0.004 | | 22 | 0.875 | 0.10 | 0.004 | *Note: Tighter tolerances available upon request.* --- #### **6. Physical & Thermal Properties** | Property | Value | |----------|-------| | **Density** | 7.87 g/cm³ (0.284 lb/in³) | | **Thermal Conductivity** | 48.6 W/m·K (33.7 BTU·in/hr·ft²·°F) | | **Specific Heat Capacity** | 486 J/kg·K (0.116 BTU/lb·°F) | | **Coefficient of Thermal Expansion** | 11.3 µm/m·°C (6.3 µin/in·°F) 20-100°C | | **Electrical Resistivity** | 0.220 µΩ·m | --- #### **7. International Standard Equivalents** | Standard System | Designation | Primary Specification | |----------------|-------------|----------------------| | **UNS** | G10450 | Unified Numbering System | | **SAE/AISI** | 1045 | SAE J403 | | **ASTM** | Grade 1045 | ASTM A108 (Cold-Finished) | | **EN (Europe)** | 1.1193 (C45E) | EN 10083-2 | | **ISO** | C45E | ISO 683-18 | | **JIS (Japan)** | S45C | JIS G4051 | | **GB (China)** | 45# (45钢) | GB/T 699 | | **DIN (Germany)** | 1.1193, Ck45 | DIN 17200 | --- #### **8. Heat Treatment Response** **Recommended Parameters:** - **Annealing:** 790-815°C (1450-1500°F), slow furnace cool - **Normalizing:** 870-925°C (1600-1700°F), air cool - **Quenching:** 830-855°C (1525-1575°F), oil quench recommended - **Tempering:** 400-650°C (750-1200°F) for desired properties **Typical Results for 16-22 mm Diameter:** - Maximum surface hardness (as-quenched): 60-65 HRC - Effective through-hardening: Full section achievable - Typical tempered hardness: 28-45 HRC depending on tempering temperature --- #### **9. Primary Applications** **Precision Mechanical Components:** - Shafts for motors and pumps - Gear blanks and pinions - Axle shafts and drive shafts - Spindles for machine tools - Linear motion shafts and guide rods **Automotive Components:** - Transmission shafts - Steering system components - Engine valve train parts - Suspension components - Brake system parts **Industrial Equipment:** - Hydraulic cylinder rods - Pneumatic system components - Bearing races and sleeves - Fastener stock for high-strength bolts - Tool holders and fixtures **Consumer Products:** - Bicycle components - Exercise equipment parts - Power tool components - Hardware and fittings --- #### **10. Fabrication & Processing** **Machining:** - Use carbide or high-speed steel tools with positive rake angles - Recommended cutting speeds: 25-40 m/min (80-130 ft/min) - Cutting fluids essential for optimal tool life - Stress relieving may be beneficial before precision machining **Welding:** - Pre-heating (200-300°C / 400-570°F) recommended - Low-hydrogen electrodes (E7018, E8018) required - Post-weld heat treatment (550-650°C / 1020-1200°F) advised - Limited weldability due to carbon content **Forming:** - Limited cold forming capability - Hot forming recommended for significant deformation - Minimum bend radius: 3-4 times diameter --- #### **11. Quality Assurance** **Standard Testing:** - Chemical analysis per heat - Tensile testing per lot - Hardness testing - Dimensional verification - Surface inspection **Certification:** - Mill test reports to ASTM A108 - Full traceability available - Additional testing upon request **Available Conditions:** - As cold drawn (standard) - Stress relieved - Annealed for improved machinability --- #### **12. Packaging & Handling** - Standard lengths: 3-6 meters (10-20 feet) - Protected with anti-corrosive coating or VCI paper - Bundled for secure handling and transport - Store in dry conditions to prevent corrosion --- **Important Considerations:** 1. **Anisotropy:** Cold drawn material exhibits directional properties 2. **Stress Relief:** May be required for precision applications 3. **Heat Treatment:** Consider final heat treatment before machining 4. **Surface Integrity:** Excellent for plating and coating applications 5. **Fatigue Performance:** Good for cyclic loading when properly processed --- **Disclaimer:** This technical data sheet provides general information. Actual properties may vary based on manufacturer, processing parameters, and specific conditions. For critical applications, consult official specifications and conduct appropriate testing. Always verify material certification for your specific requirements. -:- For detailed product information, please contact sales. -: AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4812 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1045 Steel, as cold drawn, 16-22 mm (0.625-0.875 in) round -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1283 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition