AISI 1119 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 1119 Steel Flange Product Information -:- For detailed product information, please contact sales. -: AISI 1119 Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

AISI 1119 Steel Product Information -:- For detailed product information, please contact sales. -: ## **Product Data Sheet: AISI 1119 Steel** --- ### **1. Product Overview** **AISI 1119** is a low-carbon, **free-machining steel** belonging to the same family as AISI 1117 and 12L14, but distinguished by its **very high sulfur content**. This elevated sulfur level, typically ranging from 0.24% to 0.33%, is the primary feature that defines its performance characteristics. It is primarily supplied in **cold drawn** or **hot rolled** conditions, with cold drawn being the most common for precision machining applications. The primary design purpose of AISI 1119 is to deliver **exceptional machinability** at the expense of other properties such as weldability, transverse ductility, and forgeability. It is engineered for **high-speed, high-volume production** of non-critical parts where minimizing machining cost and maximizing tool life are the paramount concerns. **Key Characteristics of AISI 1119:** * **Outstanding Machinability:** The high sulfur content forms an abundance of manganese sulfide (MnS) inclusions that act as built-in chip breakers. This allows for very high cutting speeds, excellent surface finishes directly from the tool, and significantly extended tool life. * **Good Surface Finish (Cold Drawn):** When supplied cold drawn, it has a bright, smooth surface ideal for parts that will be plated or used as-machined. * **Low Cost per Machined Part:** Its ability to be machined quickly and with minimal tool wear translates to lower overall manufacturing costs for suitable applications. * **Poor Weldability and Formability:** The high sulfur content makes it extremely susceptible to hot cracking (hot shortness) if welded and reduces its ductility, especially in directions transverse to the rolling direction. --- ### **2. Chemical Composition (Standard % by Weight)** The composition is engineered for extreme machinability, with sulfur as the key differentiating element. | Element | Content (%) | Function & Implication | | :--- | :--- | :--- | | **Carbon (C)** | 0.14 - 0.20 | Provides minimal core strength; too low for effective heat treatment. | | **Manganese (Mn)** | 1.00 - 1.30 | Combines with sulfur to form the chip-breaking manganese sulfide (MnS) inclusions. Higher Mn helps control the morphology of the sulfides. | | **Phosphorus (P)** | ≤ 0.040 | Residual element, kept low. | | **Sulfur (S)** | **0.24 - 0.33** | **The Defining Element.** This very high level creates numerous MnS inclusions, giving 1119 its superior machinability but also causing significant anisotropy and poor weldability. | | **Iron (Fe)** | Balance | Base metal. | --- ### **3. Typical Physical & Mechanical Properties** *Properties are for cold drawn condition (most common). Hot rolled properties will be slightly lower in strength/hardness.* | Property | Typical Value (Cold Drawn) | Notes | | :--- | :--- | :--- | | **Tensile Strength** | 420 - 550 MPa (61,000 - 80,000 psi) | Low to moderate strength. | | **Yield Strength (0.2% Offset)** | 350 - 480 MPa (51,000 - 70,000 psi) | | | **Elongation (in 50 mm)** | 15% - 25% | Ductility is anisotropic (better longitudinally). | | **Hardness** | 137 - 183 HB | | | **Machinability Rating** | **~ 180%** (vs. AISI 1212 = 100%) | One of the highest ratings for a carbon steel. | | **Density** | ~7.87 g/cm³ | | --- ### **4. International Standards & Cross-References** | Standard System | Equivalent Designation | Applicable Specification | | :--- | :--- | :--- | | **ASTM / AISI (USA)** | AISI 1119 | ASTM A108 (Cold Finished), ASTM A29 (Hot Rolled) | | **SAE (USA)** | SAE 1119 | SAE J403 | | **UNS (USA)** | G11190 | - | | **DIN (Germany)** | **1.0715** (10S20) | Note: German S-grades (e.g., 10S20) have high sulfur but Mn levels differ. 1.0715 is a close functional equivalent. | | **JIS (Japan)** | SUM22** | JIS SUM22 has similar high sulfur (0.24-0.33%) and is the closest common equivalent. | | **EN (Europe)** | 10S20 (1.0715) | EN 10087 | **Note:** SUM22 is often considered the direct commercial equivalent. --- ### **5. Primary Applications** AISI 1119 is used almost exclusively for **non-structural, non-welded, non-heat-treated components** where machinability is the sole or primary driver. * **High-Volume Screw Machine Parts:** Nuts, bolts, fittings, bushings, spacers, and small shafts produced on Swiss-type and multi-spindle automatic screw machines. * **Electrical & Plumbing Fittings:** Connector bodies, coupling nuts, and valve components that are plated after machining. * **Automotive Non-Critical Parts:** Door lock components, sensor housings, trim clips, and various interior brackets. * **Consumer Hardware:** Knobs, fasteners, and decorative items. * **General Machined Components:** Any part requiring complex, fast machining where the part will not be subjected to high stress, impact, or welding. --- ### **6. Critical Processing & Handling Notes** * **Heat Treatment: NOT RECOMMENDED.** The high sulfur content makes it unsuitable for case hardening (carburizing) or through-hardening. Attempts will lead to poor surface integrity and brittle components. * **Machining: EXCELLENT.** This is its intended purpose. Use sharp tools, positive rake angles, and adequate coolant. Expect small, easily broken chips. * **Weldability: VERY POOR / NOT WELDABLE.** The high sulfur content guarantees solidification (hot) cracking. **Welding is prohibited** for any structural or pressure-containing application. * **Hot Working: NOT SUITABLE.** Prone to hot shortness (cracking) during forging or hot forming due to sulfur. * **Cold Forming: POOR.** Exhibits significant anisotropy; ductility is much lower in directions transverse to the rolling direction. Bending or forming can lead to cracking. * **Plating/Coating:** Machines to an excellent surface finish for plating (zinc, nickel, chrome). Proper cleaning to remove all cutting fluids is critical for adhesion. --- ### **7. Comparison with Similar Grades** * **vs. AISI 1117:** 1119 has **much higher sulfur** (~0.30% vs. ~0.10%). This gives 1119 better machinability but worse ductility, toughness, and weldability. * **vs. 12L14:** 12L14 contains lead (Pb) for even better machinability and chip control, plus higher phosphorus. 12L14 is generally considered the premium free-machining grade. 1119 is a lower-cost alternative with excellent, but slightly inferior, machinability. --- **Disclaimer:** AISI 1119 is a specialized material with severe limitations. Its use must be justified solely by machining economics. Always consult the supplier's certification, Safety Data Sheets (SDS), and ensure the design accommodates its poor weldability and formability. It is not a general-purpose steel. -:- For detailed product information, please contact sales. -: AISI 1119 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4949 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 1119 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1119 Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1119 Steel Flange -:- For detailed product information, please contact sales. -:

Packing of AISI 1119 Steel Flange -:- 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 1420 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