1,We Manufacturing processes are primarily classified into four types:
1:Forging,
2:Casting,
3:Cutting,
4:Rolling.
2,We can manufacture in accordance with these standards.
Standards:
GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards).
Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others.
The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160.
The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500.
Flange Classification
1. **According to Chemical Industry Standards:** Flanges are classified as follows:
Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)).
2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows:
Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation).
3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows:
Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange.
4. **According to Connection Method/Type:** Flanges are classified as follows:
Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc.
5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges.
6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges.
A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts."
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Ovako C45E EN 10083-2:2006 Steel Flange Product Information
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Ovako C45E EN 10083-2:2006 Steel Flange Synonyms
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Ovako C45E EN 10083-2:2006 Steel Product Information
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# **Product Introduction: Ovako C45E Steel per EN 10083-2:2006**
**Ovako C45E (EN 10083-2:2006)** is a **medium-carbon, non-alloy quality steel for engineering applications**, produced by Ovako in strict compliance with the European standard EN 10083-2. The suffix **"E"** specifically denotes its designation as an **Engineering steel** within this standard, indicating its intended use for parts subjected to mechanical stresses that will undergo thermal treatment (quenching and tempering).
This product represents the standard-bearer for reliable, through-hardenable carbon steel in European engineering. It is characterized by a well-defined chemical composition and specified mechanical properties after heat treatment. Ovako's manufacturing ensures consistent quality that meets or exceeds the standard's requirements, making it a fundamental and trusted material for a vast array of mechanical components.
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## **1. Chemical Composition (Per EN 10083-2:2006 - Grade 1.0503)**
The standard defines precise compositional limits for the C45E grade, which Ovako adheres to with typical production at the mid-range for optimal performance.
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Copper (Cu) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| **EN 10083-2 Limits for C45E** | 0.42 - 0.50 | ≤ 0.40 | 0.50 - 0.80 | ≤ 0.035 | ≤ 0.035 | ≤ 0.30 |
| **Ovako Typical Production** | 0.45 - 0.48 | 0.15 - 0.30 | 0.60 - 0.75 | **≤ 0.025** | **≤ 0.025** | < 0.20 |
| **Key Role** | Primary source of strength & hardenability. | Deoxidizer. | Main alloying element for hardenability. | Impurity; controlled for toughness. | Impurity; controlled for uniformity. | Residual element. |
**Critical Features of the C45E Designation:**
* **Standardized Engineering Grade:** The "E" suffix formally classifies it within EN 10083-2 for engineering applications requiring heat treatment, distinguishing it from other steel categories.
* **Optimized for Through-Hardening:** The combined carbon (0.42-0.50%) and manganese (0.50-0.80%) content provides the necessary hardenability for effective quenching and tempering, especially in oil.
* **Enhanced Quality (Ovako's Practice):** While the standard permits up to 0.035%, Ovako typically controls phosphorus and sulfur to **≤0.025%**. This results in **superior impact toughness and more isotropic properties** compared to the minimum standard, reducing the risk of brittle fracture.
* **Material Designation:** Fully identified as **EN 10083-2 | 1.0503 | C45E**.
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## **2. Physical & Mechanical Properties**
EN 10083-2 specifies minimum mechanical properties for C45E **in the quenched and tempered condition**. The properties are a function of the tempering temperature, which is agreed upon between supplier and customer. The standard also allows for supply in other conditions (e.g., +N).
**A. Properties after Quenching & Tempering (Reference from Standard):**
*Typical for a tempering temperature around 550-600°C.*
| Property | **Typical Range / Minimum** | **Condition & Note** |
| :--- | :--- | :--- |
| **Tensile Strength (Rm)** | 700 - 850 MPa | Varies with tempering temperature. |
| **Yield Strength (Rp0.2)** | **≥ 450 MPa** | |
| **Elongation (A₅)** | **≥ 14%** | |
| **Impact Energy (KV)** | **≥ 35 J (Longitudinal, at 20°C)** | A key measure of toughness. |
| **Hardness** | ~ 210 - 250 HB | Corresponds to the tensile strength range. |
**B. Common Delivery Conditions from Ovako:**
1. **+QT (Quenched & Tempered):** Supplied to a specific, agreed tensile strength (e.g., 900 MPa, 1000 MPa), with a full 3.1 inspection certificate.
2. **+N (Normalized):** Provides a fine-grained, uniform ferrite-pearlite structure ideal for machining prior to customer hardening. Properties: Rm ~ 650-750 MPa, HB ~ 180-220.
3. **+AR (As-Rolled):** The most economical form for further hot working or processing.
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## **3. Product Applications**
C45E is one of the most widely used engineering steels in Europe, serving as the backbone for countless mechanical components.
* **General Mechanical Engineering:** **Shafts, spindles, axles, gears, bolts (Property Class 8.8), couplings, and lever arms.**
* **Automotive Industry:** **Steering components (stub axles, pins), crankshafts, connecting rods, and various stressed parts.**
* **Hydraulic & Pneumatic Systems:** **Piston rods, cylinder barrels** (often surface-hardened).
* **Tooling & Machine Construction:** **Jigs, fixtures, dies, and machine tool components** requiring wear resistance.
* **Agricultural & Construction Machinery:** **Drive shafts, linkage parts, pins, and gears.**
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## **4. International & Equivalent Standards**
EN 10083-2 C45E is part of a globally harmonized system for engineering steels.
| Standard System | Equivalent Grade | **Status / Relationship** |
| :--- | :--- | :--- |
| **EN (Governing Standard)** | **EN 10083-2:2006 - 1.0503 (C45E)** | **The defining specification** for this product. |
| **DIN** | **1.0503 (Historically Ck 45)** | German origin, now fully integrated into EN. |
| **ISO** | **ISO 683-18: Type 1.0503** | International equivalent. |
| **AISI/SAE (USA)** | **1045** | Direct chemical equivalent. **Note:** The "E" designation has no direct AISI equivalent; it indicates compliance with the EN standard's engineering steel rules. |
| **JIS (Japan)** | **S45C** | Very close equivalent. |
| **GB (China)** | **45# Steel** | Chinese equivalent. |
| **Ovako Proprietary** | e.g., **C45 5155** | Ovako's internal specs often use C45E as a baseline but may include tighter controls or special processing. |
**Key Distinction:** Specifying **"Ovako C45E EN 10083-2:2006"** is a precise demand for a material that **conforms to all mandatory requirements of that published European standard**. This is essential for regulatory compliance, quality audits, and design within the EU framework. It is different from ordering a generic "C45" or a manufacturer's proprietary grade.
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## **5. Key Advantages & Considerations**
**Advantages:**
* **Guaranteed Standard Compliance:** Provides assurance of material quality, traceability, and fitness for purpose according to a major international norm.
* **Proven Reliability:** Decades of industrial use have established its performance characteristics and processing guidelines.
* **Excellent Cost-Performance Ratio:** As a non-alloy steel, it delivers high strength after heat treatment at a relatively low material cost.
* **Versatile Heat Treatment Response:** Well-suited for quenching & tempering, induction hardening, flame hardening, and normalizing.
* **Good Machinability in Soft State:** In the normalized or annealed condition, it allows for efficient machining prior to hardening.
**Considerations:**
* **Moderate Hardenability:** Its hardenability is limited by its plain carbon-manganese composition. Fully through-hardening is effective typically for sections **up to approx. 30-40mm** in diameter (oil quench). Larger sections may have a softer core.
* **Requires Final Heat Treatment:** To achieve high strength, quenching and tempering are mandatory.
* **Standard Inclusion Levels:** The EN 10083-2 standard does not specify special cleanliness. For highly fatigue-critical applications, a steel with defined inclusion control (e.g., Ovako's "4M" quality) is recommended.
* **Weldability:** Requires precautions (pre-heat, low-hydrogen electrodes, post-heat) due to its carbon content. Not ideal for heavily welded structures.
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**Disclaimer:** When procuring this material, the **delivery condition (e.g., +QT to Rm 900 MPa, +N, +AR) must be explicitly stated in the purchase order**. The standard provides property ranges, but the exact agreed values are contract-specific. For design and qualification, always rely on the **Inspection Certificate 3.1 per EN 10204** provided by Ovako, which certifies the actual properties of the supplied batch against the ordered standard and condition.
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Ovako C45E EN 10083-2:2006 Steel Specification
Dimensions
Size:
Diameter 20-1000 mm Length <5088 mm
Size:We can customized as required
Standard:
Per your request or drawing
We can customized as required
Properties(Theoretical)
Chemical Composition
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Ovako C45E EN 10083-2:2006 Steel Properties
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Applications of Ovako C45E EN 10083-2:2006 Steel Flange
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Chemical Identifiers Ovako C45E EN 10083-2:2006 Steel Flange
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Packing of Ovako C45E EN 10083-2:2006 Steel Flange
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Standard Packing:
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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Flange 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 1559 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