Ovako C45 047A Steel, Quench & Tempering

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

Ovako C45 047A Steel, Quench & Tempering Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Ovako C45 047A Steel (Quenched & Tempered)** **Ovako C45 047A, Q&T** is a **quenched and tempered medium-carbon engineering steel** supplied in a final, heat-treated state according to Ovako's 047A specification. This product represents a **ready-to-use, high-strength material** where the full heat treatment cycle (austenitizing, quenching, and tempering) has been performed under controlled mill conditions to achieve guaranteed mechanical properties. This grade is engineered for components that require a reliable and immediate combination of high tensile/yield strength, good toughness, and wear resistance. The 047A specification ensures consistency and performance suitable for demanding mechanical applications, offering a significant performance upgrade over normalized or as-rolled conditions without requiring any further customer heat treatment. --- ## **1. Chemical Composition (Ovako 047A Specification)** The composition is a controlled C45 formulation, optimized for effective through-hardening. | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | **Q&T Optimization** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Range** | 0.42 - 0.50 | 0.15 - 0.40 | 0.60 - 0.90 | **≤ 0.030** | **≤ 0.030** | ≤ 0.30 | **Balanced for hardenability & tempering response.** | | **Key Role** | Core strength & hardenability base. | Deoxidizer, solid solution strengthener. | Primary hardenability driver. | Controlled for toughness. | Controlled for isotropy. | Enhances hardenability & tempering stability. | | **Critical Features for Q&T Condition:** * **Effective Hardenability:** The combined effect of Carbon (~0.45%) and Manganese (0.60-0.90%) provides sufficient hardenability for oil quenching, allowing for the development of a strong, tempered martensitic microstructure in appropriate section sizes. * **Controlled Impurities:** The low levels of phosphorus and sulfur (**≤0.030%**) are crucial for achieving **good impact toughness** after tempering and minimizing directional weakness (anisotropy). * **Predictable Tempering Response:** The consistent chemistry ensures uniform softening and microstructural recovery during the tempering process, leading to guaranteed and repeatable final properties. --- ## **2. Physical & Mechanical Properties (Quenched & Tempered Condition)** The material is supplied with certified mechanical properties based on its specific tempering condition. The following are representative values for a commonly supplied strength level. | Property | **Guaranteed Typical Values (e.g., Q&T to Rm ~900-1000 MPa)** | **Technical Significance** | | :--- | :--- | :--- | | **Tensile Strength (Rm)** | **900 - 1100 MPa** | High strength for heavily loaded components. | | **Yield Strength (Rp0.2)** | **700 - 900 MPa** | Excellent resistance to plastic deformation. | | **Elongation (A₅)** | **≥ 10%** | Maintains usable ductility despite high strength. | | **Reduction of Area (Z)** | **≥ 35%** | Indicates fair toughness. | | **Hardness** | **280 - 340 HB (approx. 28 - 36 HRC)** | Provides good wear resistance. | | **Impact Toughness (KV)** | **≥ 25 J at 20°C (Longitudinal)** | **Good toughness** for many engineering applications; suitable for dynamic loads. | | **Core Uniformity** | Good through-hardening for specified diameters. | Properties are consistent from surface to core. | | **Machinability (Hardened State)** | **Fair.** Requires carbide tooling, correct geometry, and rigid setup. Surface finish is good. | | | **Fatigue Strength** | Good, enhanced by the tempered martensitic microstructure. | | **Note on Tempering Grades:** This steel can be supplied in different tempered conditions (e.g., to achieve 800 MPa or 1200 MPa tensile strength), with corresponding adjustments in hardness, yield strength, and toughness. --- ## **3. Product Applications** Ovako C45 047A Q&T is specified for **high-strength, safety-critical mechanical components** across a wide range of industries. * **Hydraulic & Pneumatic Systems:** **Piston rods, cylinder barrels, pump shafts, and valve stems.** * **Automotive & Off-Highway:** **Axle shafts, steering components (tie rods, linkage arms), suspension parts, and U-bolts.** * **General Machinery:** **Gears, shafts, couplings, spindles, connecting rods, and high-strength pins.** * **Material Handling:** **Forklift mast rollers, chain pins, crane sheave pins, and lifting components.** * **Agricultural Equipment:** **Drive shafts, implement linkage parts, and harrow tines.** --- ## **4. International & Equivalent Standards** As a mill-treated Q&T steel, it aligns with international standards for heat-treated carbon steel bars. | Standard System | Equivalent / Comparable Grade | **Relationship / Note** | | :--- | :--- | :--- | | **Ovako Specification** | **C45 047A, Quenched & Tempered** | The exact product with guaranteed Q&T properties. | | **EN 10083-3** | **1.1203 (C45E)** for quenched & tempered steel. | The direct European standard. Ovako 047A is a controlled, branded version. | | **ASTM A29/A29M** | **Grade 1045 Q&T** (to specified hardness/strength) | The general U.S. equivalent. Ovako's 047A implies tighter quality control. | | **DIN 17200 (Withdrawn)** | **Ck 45** in tempered condition. | Historical equivalent. | | **JIS G4105** | **SCM440 Q&T** (for similar application range) | A Japanese alloy steel equivalent in application, though chemistry differs. | **Key Distinction:** **C45 047A Q&T is a performance-guaranteed, ready-to-use product.** It provides certified properties that are more consistent and reliable than those achieved by heat-treating generic C45/1045 in-house, due to Ovako's controlled furnace conditions and processes. It is a step above commodity Q&T material. --- ## **5. Key Advantages & Considerations** **Advantages:** * **Ready-to-Use High Performance:** Eliminates the cost, energy, quality risk, and lead time associated with in-house heat treatment (distortion, decarburization, inconsistency). * **Guaranteed & Certified Properties:** Provides a material certificate (EN 10204 3.1) with actual test results, ensuring design reliability. * **Excellent Strength-Toughness Balance:** Offers an optimal combination for a vast majority of high-stress mechanical applications. * **Material & Process Consistency:** Mill treatment ensures uniform properties batch-to-batch and within each bar's cross-section. * **Improved Surface Integrity:** Controlled furnace atmosphere minimizes decarburization compared to many in-house heat treatment setups. **Considerations:** * **Machining in Hardened State:** Machining must be performed on the hardened material, requiring appropriate (carbide) tooling, lower speeds/feeds, and rigid setups. * **Limited Further Heat Treatment:** The properties are set; the material is not intended for customer re-austentization and quenching. * **Weldability with Strict Precautions:** Can be welded using specialized procedures (pre-heat, low-hydrogen electrodes, post-heat/ stress relief), but welding is generally not recommended for highly stressed areas as it locally alters the tempered microstructure and creates a heat-affected zone (HAZ). * **Not an Ultra-High Toughness Grade:** For applications demanding **exceptional impact toughness at low temperatures or under severe multi-axial stress**, micro-alloyed or cleaner steel grades should be considered. --- **Disclaimer:** The guaranteed mechanical properties are specific to the ordered tempering condition (strength level) and bar diameter. For engineering design, **always use the mechanical property data from the official Ovako inspection certificate (3.1 per EN 10204) provided with the material**. Consultation with your supplier or Ovako is essential to select the correct strength grade (e.g., 900 MPa vs. 1100 MPa Rm) for your specific safety factors and load cases. -:- For detailed product information, please contact sales. -: Ovako C45 047A Steel, Quench & Tempering Specification Dimensions Size： Diameter 20-1000 mm Length <5086 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, Quench & Tempering Properties -:- For detailed product information, please contact sales. -:

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

Packing of Ovako C45 047A Steel, Quench & Tempering -:- 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 1557 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