Ovako C45 5155 Steel Flange

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." -:- For detailed product information, please contact sales. -: Ovako C45 5155 Steel Flange, +AR Product Information -:- For detailed product information, please contact sales. -: Ovako C45 5155 Steel Flange, +AR Synonyms -:- For detailed product information, please contact sales. -:

Ovako C45 5155 Steel, +AR Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Ovako C45 5155 Steel, +AR** **Ovako C45 5155, +AR** is a high-quality **medium-carbon engineering steel** supplied in the **as-rolled (+AR) condition** according to Ovako's proprietary 5155 specification. This designation indicates a steel that has undergone controlled thermomechanical rolling and is delivered without subsequent annealing or heat treatment. This product is engineered for applications where the hot-rolled condition provides adequate properties for final use or serves as an optimal starting condition for subsequent customer processing such as machining, forging, or heat treatment. The "5155" specification implies specific quality controls that differentiate it from standard commercial-grade C45 material, though it does not carry the premium "Imatra 4 M" classification. --- ## **1. Chemical Composition (Ovako 5155 Specification)** The chemical composition adheres to the standard C45 range but with tighter controls than basic commercial grades. | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Other | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Range** | 0.42 - 0.50 | 0.15 - 0.40 | 0.60 - 0.90 | **≤ 0.025** | **≤ 0.025** | ≤ 0.25 | Typical residuals | | **Key Feature** | Base for strength & hardenability. | Standard deoxidizer. | Primary hardenability element. | **Low for improved toughness.** | **Controlled for machinability/isotropy.** | Residual/added for consistency. | - | **Critical Features of the Composition:** * **Controlled Purity:** Phosphorus and sulfur are controlled at low levels (**≤0.025%**), which is better than many commodity hot-rolled steels, promoting improved toughness and more uniform properties compared to standard C45. * **Standard C45 Base:** Maintains the standard carbon and manganese range suitable for a variety of hardening processes (Q&T, induction hardening). * **Consistency:** The 5155 specification ensures a consistent chemical composition batch-to-batch, providing predictable behavior in further processing. --- ## **2. Physical & Mechanical Properties (+AR Condition)** Properties in the As-Rolled condition are a direct result of the controlled rolling practice. The microstructure is typically a ferrite-pearlite mix. | Property | Typical Value - As-Rolled (+AR) | **Technical Significance** | | :--- | :--- | :--- | | **Yield Strength (Rp0.2)** | **≥ 300 MPa** | Adequate for many structural applications in the as-supplied state. | | **Tensile Strength (Rm)** | **550 - 700 MPa** | Provides a good balance of strength and formability. | | **Elongation (A₅)** | **≥ 16%** | Maintains reasonable ductility for forming operations. | | **Hardness** | **160 - 210 HB** | Suitable for machining, though harder and less uniform than annealed stock. | | **Impact Toughness** | Moderate. Superior to high-sulfur steels but not at the level of ultra-low P/S grades like 5081 4M. | Sufficient for many non-critical dynamic applications. | | **Machinability** | **Fair.** The presence of mill scale and the as-rolled microstructure require robust tooling. Machinability is better than that of high-sulfur free-cutting steels in terms of tool life predictability but lower in terms of cutting speed. | | | **Surface Condition** | Standard hot-rolled mill scale. | Must be removed (via blasting, pickling, or machining) prior to painting, plating, or precision machining. | **Note on Further Processing:** This steel is a cost-effective raw material for components that will be: 1. **Machined and Heat Treated:** Suitable for quenching & tempering or induction hardening by the customer. 2. **Forged:** Used as a forging stock for further shape development. --- ## **3. Product Applications** Ovako C45 5155 +AR is suited for **general engineering components** where a reliable, consistent quality hot-rolled steel is required, and where the cost-saving of the +AR condition is beneficial. * **General Structural Parts:** **Base plates, brackets, and frames** for machinery and equipment. * **Shafts and Pins:** **Low to medium-stress shafts, axles, and pins** that may be machined and/or heat-treated by the customer. * **Forging Stock:** Used as **blanks for drop forgings or open-die forgings** to create more complex shapes. * **Wear Parts:** **Liners, wear plates, and bars** that may be used as-rolled or after further surface hardening. * **Components for Secondary Processing:** An economical choice for parts that will undergo significant customer-specific machining and heat treatment. --- ## **4. International & Equivalent Standards** This is a mill-specific product based on a common grade. | Standard System | Equivalent / Comparable Grade | **Relationship / Note** | | :--- | :--- | :--- | | **Ovako Specification** | **C45 5155, +AR** | The exact product specification. | | **EN 10025-2** | **1.0503 (S275JR / S355JR for structural props)** | In terms of minimum yield strength, it is comparable to structural steels, but C45 has higher carbon for hardenability. | | **EN 10250-2** | **1.0503 (C45E)** - As-rolled | The base grade equivalent. The 5155 spec represents Ovako's controlled version of this. | | **ASTM A36 / A576** | **Grade 1045 (Hot-rolled)** | The closest ASTM general specification for hot-rolled carbon steel bars. Ovako 5155 implies tighter quality control. | | **JIS G3101** | **SS400 / SS490** | General structural steel equivalent in strength, but C45 has different composition and hardening potential. | | **GB/T 699** | **45# Steel (Hot-rolled)** | The Chinese equivalent grade in the hot-rolled condition. | **Key Distinction:** **C45 5155 +AR is a quality-controlled commercial grade.** It is a step above unspecified "hot-rolled C45" from a commodity supplier but does not possess the ultra-high cleanliness and guaranteed toughness of Ovako's premium "4 M" grades (e.g., 5081). It offers a balance of **consistent quality and cost-effectiveness**. --- ## **5. Key Advantages & Considerations** **Advantages:** * **Cost-Effective:** The +AR condition provides the most economical form for large sections or heavy products, avoiding mill heat treatment costs. * **Good Consistency:** The 5155 specification ensures more reliable chemical and property ranges than non-specified commodity steel. * **Versatile Base Material:** Excellent as a starting stock for a wide range of customer processes (machining, forging, heat treatment). * **Widely Processable:** Can be welded, cut, and formed using standard methods appropriate for medium-carbon steel. **Considerations:** * **Mill Scale:** Requires an additional descaling operation before many finishing processes. * **Property Variability:** Mechanical properties can vary through the cross-section and are less uniform than in normalized or annealed material. * **Not Optimized for Machining:** Harder and less uniform than annealed steel, which may increase tool wear and machining time. * **Limited "As-Supplied" Toughness:** While P/S are controlled, the toughness is not guaranteed to the levels of premium clean-steel grades. Not ideal for highly stressed, fatigue-critical applications in the as-rolled state. --- **Disclaimer:** Properties in the +AR condition are indicative and depend on section size and rolling parameters. For critical applications, **request and review the mill test certificate for the specific batch**. It is recommended to consult with Ovako or your supplier to confirm that the C45 5155 +AR grade is suitable for your specific manufacturing process and final performance requirements. -:- For detailed product information, please contact sales. -: Ovako C45 5155 Steel, +AR Specification Dimensions Size： Diameter 20-1000 mm Length <5082 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 5155 Steel, +AR Properties -:- For detailed product information, please contact sales. -:

Applications of Ovako C45 5155 Steel Flange, +AR -:- For detailed product information, please contact sales. -: Chemical Identifiers Ovako C45 5155 Steel Flange, +AR -:- For detailed product information, please contact sales. -:

Packing of Ovako C45 5155 Steel Flange, +AR -:- 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 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 1553 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