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 C45 EN 10083-2:2006 Steel Flange Product Information
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Ovako C45 EN 10083-2:2006 Steel Flange Synonyms
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Ovako C45 EN 10083-2:2006 Steel Product Information
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# **Product Introduction: Ovako C45 Steel per EN 10083-2:2006**
**Ovako C45 (EN 10083-2:2006)** is a standardized **medium-carbon, non-alloy quality steel** produced by Ovako in full compliance with the European standard EN 10083-2. This designation signifies that the material's chemical composition, mechanical properties (in specified heat-treated conditions), and manufacturing quality adhere to the precise requirements outlined in this harmonized technical specification.
As a fundamental engineering steel, C45 offers a versatile balance of strength, toughness, and wear resistance. It is suitable for a wide range of heat treatment processes, including quenching & tempering, induction hardening, and normalizing. Ovako's production of this standard grade ensures high consistency and reliability, making it a trusted choice for general mechanical and automotive components.
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## **1. Chemical Composition (Per EN 10083-2:2006 - Grade 1.0503)**
The standard defines strict compositional limits. Ovako typically produces this grade at the mid-range for optimal consistency.
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
| :--- | :--- | :--- | :--- | :--- | :--- |
| **EN 10083-2 Limits** | 0.42 - 0.50 | ≤ 0.40 | 0.50 - 0.80 | ≤ 0.035 | ≤ 0.035 |
| **Ovako Typical/Controlled** | 0.45 - 0.48 | 0.15 - 0.30 | 0.60 - 0.75 | **≤ 0.025** | **≤ 0.025** |
| **Key Feature** | Strength & hardenability base. | Deoxidizer. | Primary hardenability element. | **Lower than max for improved toughness.** | **Lower than max for better isotropy.** |
**Critical Features of the Standard & Ovako's Implementation:**
* **Standard Compliance:** Guarantees the material meets the minimum European requirements for quality steels for quenching and tempering.
* **Enhanced Purity (Ovako):** While the standard allows up to 0.035%, Ovako typically controls Phosphorus and Sulfur to **≤0.025%**. This results in **better impact toughness and more uniform mechanical properties** than the minimum standard demands.
* **Hardenability:** The carbon and manganese content provides sufficient hardenability for oil quenching of components with moderate cross-sections.
* **Material Designation:** Fully identified as **EN 10083-2 | 1.0503 | C45E**, where 'E' stands for 'Engineering steel'.
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## **2. Physical & Mechanical Properties**
EN 10083-2 specifies mechanical properties for the material **after quenching and tempering** at the mill. Properties in other conditions (e.g., as-rolled, normalized) are not defined by this standard but can be supplied as commercial variants.
**Properties after Quenching & Tempering (Example based on standard typical values):**
*These are for a specific tempering condition (e.g., at a tempering temperature ≥ 550°C). The standard allows properties to be agreed upon between supplier and customer.*
| Property | **Typical Range (for tempered condition)** | **Standard Reference / Note** |
| :--- | :--- | :--- |
| **Tensile Strength (Rm)** | 700 - 850 MPa | Adjustable via tempering temperature. |
| **Yield Strength (Rp0.2)** | ≥ 450 MPa | |
| **Elongation (A₅)** | ≥ 14% | |
| **Impact Toughness (KV)** | ≥ 35 J at 20°C | Longitudinal direction; dependent on heat treatment. |
| **Hardness** | ~ 210 - 250 HB | Corresponds to the tensile strength range. |
**Common Supplied Conditions (Ovako):**
1. **+QT (Quenched & Tempered):** Supplied with specific, agreed-upon tensile strength (e.g., 900 MPa, 1000 MPa).
2. **+N (Normalized):** Provides a fine-grained, uniform structure ideal for machining prior to customer heat treatment.
3. **+AR (As-Rolled):** The most economical form for further forging or processing.
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## **3. Product Applications**
As a versatile, standard-grade engineering steel, EN 10083-2 C45 is used across numerous industries for components requiring good strength and wear resistance.
* **General Mechanical Engineering:** **Shafts, axles, gears, bolts (Property Class 8.8), spindles, and couplings.**
* **Automotive Industry:** **Steering components, crankshafts, connecting rods, and various suspension parts.**
* **Tooling & Machine Construction:** **Jigs, fixtures, die holders, and non-cutting tool parts.**
* **Hydraulic Components:** **Piston rods and pump parts** (often after induction hardening).
* **Construction & Agricultural Machinery:** **Pins, levers, and drive components.**
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## **4. International & Equivalent Standards**
EN 10083-2 is part of a globally recognized system with direct equivalents.
| Standard System | Equivalent Grade | **Status / Relationship** |
| :--- | :--- | :--- |
| **EN** | **EN 10083-2:2006 - 1.0503 (C45E)** | **The governing standard** for this product. |
| **DIN** | **1.0503 (Formerly Ck 45)** | The German pre-standard, fully incorporated into EN. |
| **ISO** | **ISO 683-18: Type 1.0503** | International equivalent standard. |
| **AISI/SAE** | **1045** | The direct U.S. equivalent in terms of chemical composition. |
| **JIS** | **S45C** | The Japanese equivalent. |
| **GB (China)** | **45# Steel** | The Chinese equivalent. |
| **Ovako Proprietary** | **e.g., C45 5155, C45 047A** | Ovako's internal specifications that often use EN 10083-2 as a baseline but may include tighter controls or specific processing. |
**Key Distinction:** Specifying **"Ovako C45 EN 10083-2:2006"** ensures receipt of a steel that **meets a published, harmonized European standard**. This is crucial for procurement, quality assurance, and design within the EU and many other markets. It differs from ordering a proprietary grade (e.g., 5155), where the exact specifications are defined by the manufacturer.
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## **5. Key Advantages & Considerations**
**Advantages:**
* **Standard Compliance:** Guarantees material quality and enables traceability according to a widely recognized and accepted norm.
* **Versatility:** Suitable for various heat treatments (Q&T, induction hardening, normalizing) to achieve different property profiles.
* **Good Machinability (in normalized/annealed state):** Can be easily machined prior to final hardening.
* **Cost-Effectiveness:** As a non-alloy steel, it provides a favorable performance-to-cost ratio for a vast range of applications.
* **Wide Availability & Knowledge Base:** Extensive industry experience with processing and application.
**Considerations:**
* **Limited Hardenability:** Compared to alloy steels like 42CrMo4 (4140), its hardenability is lower, limiting the cross-section size that can be fully through-hardened.
* **Requires Heat Treatment for High Strength:** To achieve its full potential, quenching and tempering are necessary.
* **Not a Clean Steel Grade:** The standard does not specify inclusion control. For critical fatigue applications, a cleaner steel (e.g., Ovako's "Imatra 4 M" quality) may be required.
* **Weldability with Precautions:** Weldable with proper pre-heating and low-hydrogen electrodes, but not designed as a primary welding steel.
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**Disclaimer:** When ordering to EN 10083-2, the **specific condition (e.g., +QT to Rm 900 MPa, +N)** must be clearly stated in the purchase order. The standard provides a framework, but the exact properties for delivery are subject to agreement. Always review the **Inspection Certificate (EN 10204 Type 3.1)** provided by Ovako, which certifies compliance with the ordered standard and condition.
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Ovako C45 EN 10083-2:2006 Steel Specification
Dimensions
Size:
Diameter 20-1000 mm Length <5087 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 C45 EN 10083-2:2006 Steel Properties
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Applications of Ovako C45 EN 10083-2:2006 Steel Flange
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Chemical Identifiers Ovako C45 EN 10083-2:2006 Steel Flange
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Packing of Ovako C45 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 1558 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