AISI 1215 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. -: AISI 1215 Steel Flange, cold drawn, 19-38 mm round Product Information -:- For detailed product information, please contact sales. -: AISI 1215 Steel Flange, cold drawn, 19-38 mm round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1215 Steel, cold drawn, 19-38 mm round Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1215 Steel, Cold Drawn Round Bar (19-38 mm)** **Overview** AISI 1215 is a low-carbon, resulfurized free-machining steel supplied as a **cold drawn round bar** in the diameter range of **19-38 mm**. This grade is specifically engineered to offer an excellent balance of superior machinability, good surface finish, and improved mechanical properties compared to its hot-rolled counterpart. The cold drawing process refines the material through precision dies, resulting in tight dimensional tolerances, a bright smooth surface, and enhanced strength via strain hardening. AISI 1215 is distinguished by its very low carbon content and controlled sulfur addition, making it a premier choice for high-volume production of complex, precision parts that require excellent chip control and consistent performance in automated machining centers. **Key Features & Advantages** * **Excellent Machinability:** Formulated with optimized sulfur content to produce short, broken chips, enabling high cutting speeds, reduced tool wear, and superior surface finishes on machined components. Its machinability rating is typically around 90-95% of the AISI 1212 benchmark. * **Superior Dimensional Accuracy & Surface Quality:** Cold drawing provides excellent diameter control (per ASTM A108), improved straightness, and a bright, scale-free surface, reducing the need for secondary finishing operations. * **Enhanced Strength & Hardness:** The cold working process increases yield and tensile strength significantly over the hot-rolled condition, providing a stronger base material for machined parts. * **Good Consistency & Predictability:** Offers uniform metallurgical structure and mechanical properties, ensuring reliable performance in high-volume, automated manufacturing environments. * **Optimized for High-Production Efficiency:** The combination of free-machining characteristics and precision form makes it ideal for minimizing cycle times and total part cost in screw machine and CNC lathe applications. --- ### **1. Chemical Composition (Standard Conformance)** | Element | Standard Range (%) | Key Function | | :--- | :--- | :--- | | **Carbon (C)** | ≤ 0.09 (max) | Very low carbon content maximizes machinability and minimizes hardening during cold working and machining. | | **Manganese (Mn)** | 0.75 – 1.05 | Combines with sulfur to form manganese sulfide (MnS) inclusions for chip breaking. | | **Phosphorus (P)** | 0.04 – 0.09 | Improves machinability and chip formation characteristics. | | **Sulfur (S)** | 0.26 – 0.35 | **Primary free-machining agent.** High sulfur content ensures excellent chip-breaking performance. | | **Iron (Fe)** | Balance | Base element. | **Key International Standard Equivalents:** * **UNS:** G12150 * **AISI/SAE:** 1215 * **ASTM:** **A108** (Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished) * **DIN (Germany):** 9SMn36 / 1.0718 * **EN (Europe):** 1.0718 * **JIS (Japan):** SUM22L or SUM23 --- ### **2. Typical Physical & Mechanical Properties (Cold Drawn Condition, 19-38 mm)** | Property | Typical Value / Description | | :--- | :--- | | **Density** | 7.87 g/cm³ | | **Machinability Rating** | **~90-95%** (Relative to AISI 1212=100%) – Excellent free-machining characteristics | | **Tensile Strength** | 420 – 550 MPa (61 – 80 ksi) | | **Yield Strength (0.2% Offset)** | **350 – 480 MPa (51 – 70 ksi)** – Enhanced via cold work | | **Elongation (in 50mm)** | 12% – 22% | | **Brinell Hardness (HB)** | 140 – 190 | | **Surface Roughness (Ra)** | 1.6 – 3.2 μm (63 – 125 μin) – Bright, smooth finish | | **Diameter Tolerance** | ASTM A108 cold drawn standards | --- ### **3. Product Applications** AISI 1215 cold drawn rounds are extensively used in high-volume precision machining applications: * **Complex Screw Machine Parts:** Bushings, fittings, connectors, and small components for automotive, hydraulic, and pneumatic systems * **Fasteners & Hardware:** Nuts, bolts, set screws, and specialized fasteners * **Electrical Components:** Connector pins, terminals, and shielding parts * **Automotive Non-Structural Parts:** Fuel system fittings, sensor housings, and decorative trim components * **General Precision Machined Components:** Any part where excellent machinability and good surface finish are prioritized --- ### **4. Critical Considerations & Limitations** * **Non-Weldable:** **UNSUITABLE FOR WELDING** – High sulfur content causes severe hot cracking and embrittlement * **Anisotropic Properties:** Exhibits directional characteristics with poor transverse ductility and impact strength * **Limited Strength Applications:** Not suitable for structural, load-bearing, or safety-critical components * **Residual Stress Management:** May require stress relief for complex machining operations to prevent distortion * **Comparison to 1212:** Slightly lower machinability but better surface consistency; 1215 offers more predictable performance in certain high-speed operations **Disclaimer:** AISI 1215 Cold Drawn is a specialized manufacturing steel optimized for machining efficiency. Its use must be limited to non-structural, non-welded applications where production economics outweigh mechanical property limitations. -:- For detailed product information, please contact sales. -: AISI 1215 Steel, cold drawn, 19-38 mm round Specification Dimensions Size： Diameter 20-1000 mm Length <5009 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. -: AISI 1215 Steel, cold drawn, 19-38 mm round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1215 Steel Flange, cold drawn, 19-38 mm round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1215 Steel Flange, cold drawn, 19-38 mm round -:- For detailed product information, please contact sales. -:

Packing of AISI 1215 Steel Flange, cold drawn, 19-38 mm round -:- 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 1480 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