Ovako C45 047A Steel, Normalizing

Ovako C45 047A Steel, Normalizing Product Information -:- For detailed product information, please contact sales. -: Ovako C45 047A Steel, Normalizing Synonyms -:- For detailed product information, please contact sales. -:

Ovako C45 047A Steel, Normalizing Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Ovako C45 047A Steel, Normalized Condition** **Ovako C45 047A, Normalized** is a **medium-carbon engineering steel** supplied in the **normalized heat treatment condition** according to Ovako's 047A specification. This product has undergone a controlled austenitizing and air-cooling process at the mill, resulting in a refined, uniform microstructure that provides enhanced and consistent mechanical properties compared to the as-rolled (+AR) condition. Normalization refines the grain structure, improves homogeneity, and relieves internal stresses from prior processing (rolling, forging). This makes "C45 047A, N" an ideal starting material for components requiring good machinability, predictable response to further heat treatment (like induction hardening), and reliable baseline mechanical properties for many structural applications. --- ## **1. Chemical Composition (Ovako 047A Specification)** The composition adheres to the standard C45 range with the quality controls typical of the 047A specification. | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | **Normalization Benefit** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Range** | 0.42 - 0.50 | 0.15 - 0.40 | 0.60 - 0.90 | **≤ 0.030** | **≤ 0.030** | ≤ 0.30 | **Uniform, fine-grained response.** | | **Key Role** | Strength base. | Deoxidizer. | Primary hardenability element. | Controlled for toughness. | Controlled for uniformity. | Enhances hardenability consistency. | | **Critical Features for Normalized Condition:** * **Consistent Hardenability:** The controlled Mn and Cr ensure a uniform and predictable austenite condition during the normalization process, leading to consistent transformation upon air cooling. * **Grain Refinement Potential:** The chemistry supports the formation of a fine, uniform ferrite-pearlite microstructure after normalization, which is key to the improved toughness and machinability. * **Quality Foundation:** The 047A specification implies a quality level suitable for demanding applications, with controlled residuals to ensure good performance post-normalization. --- ## **2. Physical & Mechanical Properties (Normalized Condition)** Normalization provides a significant upgrade in property consistency and isotropy over the as-rolled state. | Property | **Guaranteed / Typical Values - Normalized** | **Technical Significance** | | :--- | :--- | :--- | | **Tensile Strength (Rm)** | **580 - 740 MPa** | **Higher and more consistent** than as-rolled, with less through-thickness variation. | | **Yield Strength (Rp0.2)** | **≥ 340 MPa** | Improved yield strength due to grain refinement. | | **Elongation (A₅)** | **≥ 17%** | Good ductility is maintained. | | **Hardness** | **170 - 210 HB** | Optimal range for good machinability with predictable tool wear. | | **Impact Toughness (KV)** | **Good, isotropic.** The normalized microstructure provides better and more uniform toughness in all directions compared to as-rolled. | Suitable for components subject to dynamic or impact loading. | | **Microstructure** | **Fine, uniform ferrite-pearlite.** | The defining outcome of normalization, ensuring property uniformity. | | **Machinability** | **Very Good (for medium-carbon steel).** The uniform hardness and predictable microstructure allow for stable cutting conditions, good surface finish, and extended tool life. | | | **Dimensional Stability** | Good. Internal stresses from rolling are relieved. | Reduces risk of distortion during subsequent machining. | **Note on Further Processing:** This normalized condition is an excellent pre-state for: * **Machining to final dimensions** before a final surface hardening (induction, flame). * **Subsequent through-hardening (Q&T),** where the uniform, fine-grained starting structure promotes better toughness in the final hardened part. --- ## **3. Product Applications** Ovako C45 047A Normalized is specified for components that require **reliable baseline properties, good machinability, and a high-quality foundation for further processing.** * **Gears and Pinions:** Often supplied normalized for machining before carburizing or induction hardening. * **Shafts and Axles:** **Intermediate shafts, pump shafts, and general axle components** that may be used as-is or later surface hardened. * **Machine Tool Components:** **Slide ways, frames, and non-critical stressed parts** requiring stability and good machinability. * **General Engineering Components:** **Bolts, flanges, and structural parts** where normalized properties provide sufficient performance. * **Pre-forms for Forging/Heat Treatment:** Used as a standardized, quality-assured starting stock for further hot working or customer heat treatment. --- ## **4. International & Equivalent Standards** This is a normalized version of a common forging/engineering grade. | Standard System | Equivalent / Comparable Grade | **Relationship / Note** | | :--- | :--- | :--- | | **Ovako Specification** | **C45 047A, Normalized** | The exact product in the normalized condition. | | **EN 10083-2** | **1.0503 (C45E) - Normalized** | The direct European standard equivalent for normalized carbon steel. | | **ASTM A29/A29M** | **Grade 1045 - Normalized** | The U.S. equivalent. Ovako 047A implies a controlled quality version. | | **DIN 17200 (Withdrawn)** | **Ck 45 - normalized** | Historical German standard. | | **JIS G4051** | **S45C - Normalized** | Japanese equivalent. | | **GB/T 699** | **45# Steel - Normalized** | Chinese equivalent in normalized condition. | **Key Distinction:** The value of **"C45 047A, Normalized"** lies in the **assurance of a properly executed and controlled normalization process** by the steel producer. Purchasing generic "C45 normalized" does not guarantee the same level of microstructure uniformity and property consistency. The 047A designation adds a layer of quality assurance. --- ## **5. Key Advantages & Considerations** **Advantages:** * **Superior Property Uniformity:** Eliminates the property gradients and variability common in as-rolled material, providing consistent behavior in all directions. * **Excellent Machinability:** The ideal hardness range and homogeneous structure result in predictable tool life, good chip control, and excellent surface finish. * **Improved Toughness:** Grain refinement significantly enhances impact resistance compared to the as-rolled state. * **Stress-Relieved:** Reduces residual stresses, minimizing the risk of distortion during machining. * **Optimal Pre-State for Hardening:** Provides the most consistent and reliable starting condition for any subsequent surface or through-hardening process. **Considerations:** * **Higher Cost than +AR:** The additional mill heat treatment adds cost compared to as-rolled material. * **Not a High-Strength State:** Strength is suitable for many applications but is significantly lower than in the quenched & tempered condition. It is a **condition for further processing or direct use where Q&T strength is not required.** * **Decarburization Possible:** The normalization heat treatment can cause a thin decarburized surface layer, which may need to be removed for critical wear surfaces or prior to hardening. --- **Disclaimer:** The guaranteed mechanical properties are typical for the normalized condition but can vary slightly with section size. For design purposes, **always refer to the official Ovako inspection certificate (3.1 per EN 10204) provided with the material**, which states the actual test results for the supplied batch. Specify "Normalized" in the purchase order to ensure receipt of material in this condition. -:- For detailed product information, please contact sales. -: Ovako C45 047A Steel, Normalizing Specification Dimensions Size： Diameter 20-1000 mm Length <5085 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. -: Ovako C45 047A Steel, Normalizing Properties -:- For detailed product information, please contact sales. -:

Applications of Ovako C45 047A Steel, Normalizing -:- For detailed product information, please contact sales. -: Chemical Identifiers Ovako C45 047A Steel, Normalizing -:- For detailed product information, please contact sales. -:

Packing of Ovako C45 047A Steel, Normalizing -:- 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 1556 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