AISI 1213 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 1213 Steel Flange, cold drawn, 19-38 mm round Product Information -:- For detailed product information, please contact sales. -: AISI 1213 Steel Flange, cold drawn, 19-38 mm round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1213 Steel, cold drawn, 19-38 mm round Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1213 Steel, Cold Drawn Round Bar (19-38 mm)** **Overview** AISI 1213 is the premier high-sulfur free-machining steel, supplied in its precision-engineered form as a **cold drawn round bar** in the diameter range of **19-38 mm**. This product combines the extreme machinability of AISI 1213—the grade with the highest sulfur content in the standard 12xx series—with the superior dimensional accuracy, surface finish, and enhanced strength provided by the cold drawing process. It represents the ultimate choice for manufacturers who prioritize **maximum production speed, superior chip control, and exceptional as-machined surface finish** above all other material considerations. This is a specialized steel designed to minimize machining cost per part in high-volume, precision applications. **Key Features & Advantages** * **Ultimate Machinability & Chip Control:** The very high sulfur content (0.24-0.33%) ensures the formation of a dense population of manganese sulfide (MnS) inclusions, producing short, brittle chips that are easily evacuated. This allows for the highest feasible cutting speeds and feeds, minimizing cycle time and tool wear. Machinability typically exceeds 130% of the AISI 1212 standard. * **Superior Surface Quality:** The combination of free-cutting chemistry and a smooth, cold-drawn surface results in outstanding machined part finish, often eliminating secondary grinding or polishing operations. * **Precision Dimensional Consistency:** Cold drawing provides tight diameter tolerances (per ASTM A108), excellent straightness, and uniform cross-section, ensuring reliable performance in automated feeding systems and CNC programs. * **Enhanced Mechanical Properties:** The cold working process increases yield and tensile strength significantly compared to the hot-rolled condition, providing a stronger base material for components. * **Optimized Production Economics:** Delivers the lowest possible machining cost per part in suitable applications, justifying its use through dramatic reductions in cycle time, tool consumption, and energy use. --- ### **1. Chemical Composition (Standard Conformance)** The chemistry is defined by its exceptionally high sulfur content, optimized for chip-breaking performance. | Element | Standard Range (%) | Key Function | | :--- | :--- | :--- | | **Carbon (C)** | ≤ 0.13 (max) | Kept minimal to prevent work hardening and ensure good chip formation. | | **Manganese (Mn)** | 0.70 – 1.00 | Present in sufficient quantity to fully combine with the high sulfur, forming the critical MnS inclusions. | | **Phosphorus (P)** | 0.07 – 0.12 | **Elevated.** Contributes to chip brittleness and slightly increases strength. | | **Sulfur (S)** | **0.24 – 0.33** | **The Defining Element.** This very high sulfur content creates a prolific amount of soft MnS inclusions that lubricate the cut and ensure discontinuous chips. | | **Iron (Fe)** | Balance | Base element. | **Key International Standard Equivalents:** * **UNS:** G12130 * **AISI/SAE:** 1213 * **ASTM:** **A108** (Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished) * **DIN (Germany):** 9SMn36 / 1.0718 (+C condition for cold drawn) * **EN (Europe):** 1.0718 * **JIS (Japan):** SUM22L or SUM23 (similar high-sulfur free-cutting grades) --- ### **2. Typical Physical & Mechanical Properties (Cold Drawn Condition, 19-38 mm)** *Note: This material is selected solely for manufacturing efficiency. Its mechanical properties are the most compromised in the free-machining family.* | Property | Typical Value / Description | | :--- | :--- | | **Density** | 7.87 g/cm³ | | **Machinability Rating** | **~130-140%** (Relative to AISI 1212=100%). The highest among standard carbon steel bars. | | **Tensile Strength** | 415 – 550 MPa (60 – 80 ksi) | | **Yield Strength (0.2% Offset)** | **345 – 485 MPa (50 – 70 ksi)** – *Increased via cold work.* | | **Elongation (in 50mm)** | **8% – 15%** *(Very low and highly anisotropic; transverse ductility is extremely poor)* | | **Brinell Hardness (HB)** | 150 – 190 | | **Surface Roughness (Ra)** | 1.6 – 3.2 μm (63 – 125 μin). Very bright, smooth finish. | | **Tolerances** | Conforms to ASTM A108 cold-drawn tolerances for precision machining. | --- ### **3. Product Applications** AISI 1213 cold drawn rounds are specified for the most demanding, high-speed, high-precision machining applications where machinability is the absolute priority. * **Complex, High-Volume Screw Machine Parts:** Intricate components for automotive fuel injectors, hydraulic valves, pneumatic fittings, and surgical instruments where chip control and surface finish are critical to function and production speed. * **Fasteners Produced at Maximum Speed:** Specialized nuts, bolts, and set screws where threading and head-forming operations benefit from extreme free-cutting action. * **Electrical Connectors & Electronic Components:** Precision pins, terminals, and contacts requiring a burr-free, smooth surface finish straight from the machine. * **Decorative or Functional Hardware:** Knobs, bezels, and appliance components where the as-machined appearance is important. * **Any Component** where a **30% or greater reduction in machining time** (compared to 1212) justifies the material's significant limitations. --- ### **4. Critical Considerations & Limitations** * **Non-Weldable:** **COMPLETELY UNWELDABLE BY ANY FUSION PROCESS.** The extremely high sulfur content guarantees severe **hot cracking** and embrittlement. Assembly must be 100% mechanical (threads, press fits, adhesives). * **Extreme Anisotropy & Brittleness:** Mechanical properties are **highly directional and very poor in the transverse direction**. The material has **negligible impact toughness** and **very low ductility across the grain**. It **must not** be used for any structural, load-bearing, or dynamically loaded part. * **Residual Stress Sensitivity:** Cold drawing introduces significant residual stresses. For parts with asymmetric machining, **stress relieving is strongly recommended** to prevent distortion, as the material has little inherent ductility to accommodate stress redistribution. * **Limited to Non-Critical Applications:** Suitable **only** for non-structural, non-safety-critical components in benign environments. Its corrosion resistance is also typical of plain carbon steels. * **Comparison to 1212 CD:** AISI 1213 CD offers measurably better machinability and surface finish but at the cost of significantly worse transverse properties and weldability. It is a specialty grade, whereas 1212 CD is the general-purpose free-machining standard. * **Optimal Tooling:** While tool life is generally excellent, the high sulfur content can sometimes promote built-up edge on certain tool materials under specific conditions; optimal tool geometry and grade selection are recommended. **Disclaimer:** **AISI 1213 Cold Drawn is a specialized manufacturing efficiency material, not an engineering steel.** Its application must be rigorously justified by a detailed cost-benefit analysis of machining savings versus its severe limitations in weldability, ductility, toughness, and strength. It is unsuitable for any application where part integrity under load is a concern. -:- For detailed product information, please contact sales. -: AISI 1213 Steel, cold drawn, 19-38 mm round Specification Dimensions Size： Diameter 20-1000 mm Length <5007 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 1213 Steel, cold drawn, 19-38 mm round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1213 Steel Flange, cold drawn, 19-38 mm round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1213 Steel Flange, cold drawn, 19-38 mm round -:- For detailed product information, please contact sales. -:

Packing of AISI 1213 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 1478 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