Iron Wire grade 80-60-03

Ductile Iron Wire grade 80-60-03 Product Information -:- For detailed product information, please contact sales. -: Ductile Iron Wire grade 80-60-03 Synonyms -:- For detailed product information, please contact sales. -:

Ductile Iron grade 80-60-03 Product Information -:- For detailed product information, please contact sales. -: ### **Product Technical Data Sheet: Ductile Iron (Nodular Iron) Grade 80-60-03** #### **1. Product Overview** Ductile Iron (DI) Grade 80-60-03 is a high-strength, pearlitic-ferritic grade engineered for applications demanding superior tensile and yield strength alongside good wear resistance, while maintaining a fundamental level of ductility. The grade designation indicates minimum mechanical properties: **80 ksi (550 MPa) tensile strength, 60 ksi (415 MPa) yield strength, and 3% elongation**. This grade is typically produced in the **as-cast** or **normalized** condition, resulting in a matrix structure of predominantly pearlite with islands of ferrite surrounding the graphite nodules. It serves as a critical material solution where the higher strength of steel is needed but the castability, damping, and cost-effectiveness of iron are essential. #### **2. Governing International Standards** This grade is recognized under all major international ductile iron specifications. * **Primary Designation: ASTM A536** - *Standard Specification for Ductile Iron Castings*. The grade is designated as **80-60-03**. * **Alternative Designations:** * **ISO 1083:** Designated as **EN-GJS-600-3** or **JS/1050-03** (600 MPa tensile, 370 MPa yield, 3% elongation). Slight variations exist, but 80-60-03 is the direct commercial equivalent. * **EN 1563:** (European Standard) **EN-GJS-600-3**. * **SAE J434:** (Automotive) **D5506**. * **Key Testing Standards:** * **Tensile Test:** ASTM E8 / ISO 6892-1. * **Microstructure:** ASTM A247 / ISO 945 (Nodularity typically >80%, Type I & II graphite in a pearlitic matrix). #### **3. Typical Chemical Composition (As-Cast / Normalized)** The chemistry is balanced to promote a pearlitic matrix in the cast section without full annealing. | Element | Target Range (%) | Functional Role | | :--- | :--- | :--- | | **Carbon (C)** | 3.5 - 3.8 | Ensures castability and graphite formation. Slightly lower than ferritic grades to strengthen the matrix. | | **Silicon (Si)** | 2.0 - 2.5 | Moderate level. Lower than ferritic grades to allow pearlite formation; higher levels promote ferrite. | | **Manganese (Mn)** | 0.2 - 0.5 | A key pearlite stabilizer. Higher Mn content helps achieve the required pearlitic structure, especially in heavier sections. | | **Magnesium (Mg)** | 0.03 - 0.05 | Essential nodulizing element. | | **Copper (Cu)** | 0.4 - 0.8 | **Primary alloying element for this grade.** A strong and uniform pearlite promoter, essential for achieving consistent high strength throughout the casting. | | **Tin (Sn)** | 0 - 0.1 | Potent pearlite stabilizer; used in small amounts for section uniformity. | | **Molybdenum (Mo)** | 0 - 0.3 | May be added in heavy sections to prevent ferrite formation and increase hardenability. | | **Phosphorus (P)** | ≤ 0.04 | Kept very low. | | **Sulfur (S)** | ≤ 0.015 | Kept very low. | #### **4. Physical & Mechanical Properties** This grade is defined by high strength and stiffness, with moderate ductility. | Property | Minimum / Typical Value | Test Standard & Notes | | :--- | :--- | :--- | | **Tensile Strength, min.** | **80 ksi (550 MPa)** | ASTM A536 / ISO 1083 | | **Yield Strength (0.2% offset), min.** | **60 ksi (415 MPa)** | High yield strength is a key feature (~0.75 of UTS). | | **Elongation, min.** | **3%** (in 2 inches or 50mm) | Lower ductility than ferritic grades but sufficient for many high-strength applications. | | **Hardness (Brinell)** | 201 - 269 HBW | Typically 217-241 HBW. Good wear resistance due to hard pearlite. | | **Modulus of Elasticity** | 24 - 25 x 10⁶ psi (165 - 172 GPa) | High stiffness, comparable to steel. | | **Charpy Impact (Unnotched) @ 23°C** | 25 - 40 J (Typical) | Impact resistance is lower than ferritic grades but adequate for many static/dynamic loads. | | **Fatigue Endurance Limit** | ~250 - 275 MPa (≈ 0.45-0.5 x UTS) | Good fatigue performance under cyclic loading. | | **Density** | 0.256 lb/in³ (7.1 g/cm³) | | | **Microstructure** | **70-95% Pearlite** matrix with **>80% Nodularity** (Type I & II graphite). Balance is ferrite surrounding the nodules. | The pearlitic matrix provides the high strength and wear resistance. | #### **5. Product Applications** Grade 80-60-03 is the workhorse high-strength ductile iron, specified for components under high static and dynamic stress. * **Automotive & Trucking (Primary Market):** **Crankshafts, camshafts, differential cases, ring gears, hub carriers, steering knuckles, disc brake calipers.** Its strength withstands high torque and bending loads. * **Heavy Machinery & Construction:** **Gearbox housings, hydraulic cylinder barrels, pump bodies, rollers, idlers, and heavy-duty axle components** for mining and agricultural equipment. * **Industrial Machinery:** **Press frames, spindles, machine tool components, compressor crankshafts, and valve bodies** requiring high stiffness and fatigue resistance. * **Railway:** **Bogie frames, coupler components, and brake discs.** * **Power Transmission:** **Large gear blanks** where its castability for complex shapes and good machinability are advantageous over steel forgings. #### **6. Fabrication & Heat Treatment Notes** * **Primary Condition:** **As-Cast or Normalized.** Normalizing (heating to 870-900°C, air cooling) refines the pearlite structure, ensuring consistent high strength and improved mechanical properties throughout the casting. * **Machinability:** **Fair to Good.** More demanding than ferritic grades (60-40-18) due to the harder pearlitic matrix, but still superior to most steels. Requires robust tooling and correct parameters. * **Weldability:** **Poor.** Not recommended for general fabrication welding. If repair is unavoidable, it requires stringent procedures: high pre-heat (500-600°C), specialized nickel-iron electrodes, and controlled post-weld cooling to avoid hard, crack-susceptible zones. Stress relief is mandatory. #### **7. Ordering Information** Specify: **"Ductile Iron Castings, ASTM A536 Grade 80-60-03 (Normalized/As-Cast)"**. Key details to include: * **Condition:** Specify if normalized heat treatment is required. * **Drawing/Part Specification.** * **Required certifications:** Foundry test report with mechanical properties (tensile, yield, elongation, hardness). Microstructure specification (e.g., minimum pearlite content) may be required. * **Any special requirements:** Non-destructive testing (NDT) such as ultrasonic or magnetic particle inspection for critical areas. Grade 80-60-03 provides an optimal performance-to-cost ratio for high-integrity components, successfully replacing forged steel in countless applications by leveraging the design freedom and economic benefits of the casting process. -:- For detailed product information, please contact sales. -: Ductile Iron grade 80-60-03 Specification Dimensions Size： Diameter 20-1000 mm Length <6518 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. -: Ductile Iron grade 80-60-03 Properties -:- For detailed product information, please contact sales. -:

Applications of Ductile Iron Wire grade 80-60-03 -:- For detailed product information, please contact sales. -: Chemical Identifiers Ductile Iron Wire grade 80-60-03 -:- For detailed product information, please contact sales. -:

Packing of Ductile Iron Wire grade 80-60-03 -:- 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 2989 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