ASTM A485 Steel Wire, Grade 1

ASTM A485 Steel Wire, Grade 1 Product Information -:- For detailed product information, please contact sales. -: ASTM A485 Steel Wire, Grade 1 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A485 Steel, Grade 1 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A485 Grade 1 High-Hardenability Steel** #### **1. Overview** ASTM A485 Grade 1 is a high-hardenability alloy steel primarily used for through-hardening applications. This grade is specifically designed to achieve uniform hardness in large cross-sections, making it suitable for heavy-duty components requiring high strength and wear resistance throughout their thickness. #### **2. Key International Standards** - **Primary Standard:** **ASTM A485** - Standard Specification for High Hardenability Anti-Friction Bearing Steel - **Processing Condition:** Typically supplied as spheroidize annealed for machining - **International Equivalents:** - **ISO 683-17:** 100CrMnSi4-4 - **DIN:** 100CrMn6 - **JIS G4805:** SUJ3 #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.90-1.05 | | Manganese (Mn) | 0.80-1.10 | | Silicon (Si) | 0.45-0.75 | | Chromium (Cr) | 0.90-1.20 | | Phosphorus (P), max | 0.025 | | Sulfur (S), max | 0.025 | #### **4. Mechanical & Physical Properties** **Heat Treated Properties (Oil Quenched & Tempered):** - **Hardness:** 58-65 HRC (typical) - **Tensile Strength:** 2000-2400 MPa (290-348 ksi) - **Yield Strength:** 1600-2000 MPa (232-290 ksi) **Physical Properties:** - **Density:** 7.83 g/cm³ - **Modulus of Elasticity:** 205 GPa - **Thermal Conductivity:** 42 W/m·K (at 100°C) - **Coefficient of Thermal Expansion:** 12.5 × 10⁻⁶/K (20-100°C) #### **5. Product Applications** - **Anti-friction Bearings:** Large bore bearings, spherical roller bearings - **Heavy-Duty Gears:** Large transmission gears, mining equipment gears - **Machine Components:** Shafts, spindles, and high-stress mechanical parts - **Automotive Applications:** Critical transmission components - **Industrial Machinery:** High-wear components in heavy equipment #### **6. Key Characteristics & Advantages** - **High Hardenability:** Excellent through-hardening characteristics - **Uniform Hardness:** Maintains consistent hardness in large sections - **Wear Resistance:** Superior resistance to abrasion and surface fatigue - **Good Dimensional Stability:** Minimal distortion during heat treatment - **High Fatigue Strength:** Excellent resistance to cyclic loading #### **7. Heat Treatment Requirements** - **Annealing:** Spheroidize annealed at 790-815°C - **Hardening:** Austenitize at 830-850°C, oil quench - **Tempering:** 150-200°C for high hardness applications #### **8. Fabrication Considerations** - **Machining:** Best machined in annealed condition (187-229 HB) - **Grinding:** Responds well to precision grinding operations - **Welding:** Not recommended for welding applications - **Forming:** Limited formability in hardened condition ASTM A485 Grade 1 provides manufacturers with a reliable high-hardenability steel solution for applications demanding uniform hardness, exceptional wear resistance, and high load-carrying capacity in large cross-sectional components. -:- For detailed product information, please contact sales. -: ASTM A485 Steel, Grade 1 Specification Dimensions Size： Diameter 20-1000 mm Length <4395 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. -: ASTM A485 Steel, Grade 1 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A485 Steel Wire, Grade 1 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A485 Steel Wire, Grade 1 -:- For detailed product information, please contact sales. -:

Packing of ASTM A485 Steel Wire, Grade 1 -:- 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 Wire 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 866 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