AISI 1070 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 1070 Steel Flange, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1070 Steel Flange, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1070 Steel, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: ### **Product Data Sheet: AISI 1070 Steel, Cold Drawn, Spheroidized Annealed, Round Bar (19-32 mm / 0.75-1.25 in)** **1. Overview** AISI 1070 Steel, supplied as a cold-drawn and spheroidized annealed round bar in the 19-32 mm diameter range, represents a premium-grade, high-carbon steel product optimized for **cold forming and machining**. The spheroidized annealed microstructure, characterized by globular (spheroidal) carbides in a soft ferrite matrix, provides an exceptional combination of low hardness, high ductility, and good machinability for its carbon level. The subsequent cold drawing process improves dimensional accuracy, surface finish, and yield strength. This product is the ideal starting material for manufacturers who need to perform severe cold working (e.g., upset forging, cold heading) or precision machining before final heat treatment to achieve high strength and wear resistance. --- **2. Chemical Composition (Standard AISI/SAE Specification)** This grade is defined by a narrow carbon range that balances formability and final hardness potential. | Element | Content (%) | | :--- | :--- | | **Carbon (C)** | 0.65 - 0.75 | | **Manganese (Mn)** | 0.60 - 0.90 | | **Phosphorus (P)** | ≤ 0.040 | | **Sulfur (S)** | ≤ 0.050 | | **Silicon (Si)** | 0.15 - 0.35 | | **Iron (Fe)** | Balance | --- **3. Typical Physical & Mechanical Properties (As-Delivered: Spheroidized Annealed & Cold Drawn)** | Property | Typical Value / Description | | :--- | :--- | | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 190-210 GPa (27,500-30,500 ksi) | | **Tensile Strength** | 515 - 620 MPa (75 - 90 ksi) | | **Yield Strength (0.2% Offset)** | **415 - 550 MPa (60 - 80 ksi)** *(Increased by cold work)* | | **Elongation (in 50 mm / 2 in)** | **≥ 12%** | | **Reduction in Area** | **≥ 45%** | | **Hardness** | **75 - 85 HRB** (Rockwell B) / **137 - 179 HB** (Brinell) | | **Machinability** | **Good for its carbon content (~65% of AISI 1212).** The spheroidized structure allows for better chip breaking and lower tool wear compared to a pearlitic structure. | | **Cold Formability** | **Excellent.** The spheroidized annealed condition is the softest possible state for high-carbon steel, permitting extensive deformation without cracking. | | **Surface Finish** | Smooth, with a superior finish and tighter tolerances compared to hot-rolled products due to the cold drawing process. | --- **4. Key Characteristics & Metallurgical Rationale** * **Spheroidized Annealed Microstructure:** The cementite (iron carbide) is present as small, round particles (spheroids) rather than the hard, plate-like lamellae found in pearlite. This drastically reduces hardness and increases ductility and toughness in the pre-form state. * **Cold Drawing Benefits:** Imparts slight strain hardening, increasing yield strength and improving dimensional consistency (±0.075 mm to ±0.175 mm), straightness, and surface quality. * **Hardenability Response:** While delivered soft, AISI 1070 has **very high hardenability potential**. After forming/machining, components can be quenched and tempered to achieve very high hardness (up to 60-65 HRC) and exceptional wear resistance. * **Limited Weldability:** As with all high-carbon steels, welding is not recommended due to extreme crack sensitivity. If unavoidable, requires stringent pre-heat, post-heat, and specialized procedures. --- **5. Primary Product Applications** This specific form of AISI 1070 is the **preferred feedstock** for manufacturing high-strength, wear-resistant components via cold forming processes. * **Cold Forged / Upset Parts:** High-strength bolts, screws, nuts, axles, and pins where severe head forming or shaping is required. * **Cold Headed Fasteners:** Critical fasteners for automotive, construction, and machinery that gain strength through work hardening and subsequent heat treatment. * **Tooling Components:** Punches, dies, blades, and other tooling parts that are machined or formed in the soft state and then hardened. * **Springs:** Coil springs, torsion bars, and leaf springs (especially where cold coiling or forming is the manufacturing method). * **Shafts & Pins:** Precision shafts, dowel pins, and rollers that require good machined finish before hardening. * **Agricultural & Cutting Tools:** Components for tillage equipment and cutting blades that are stamped or formed cold. --- **6. Relevant International & Industry Standards** This product meets dimensional and material specifications under several key standards. | Standard System | Standard Designation | Title / Scope (Relevant to this Product Form) | | :--- | :--- | :--- | | **AISI / SAE (USA)** | **1070** | Standard Carbon Steel Grade | | **ASTM (USA)** | **ASTM A510** | Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel *(Covers spheroidized wire rod feedstock)* | | **ASTM (USA)** | **ASTM A29/A29M** | Specification for Steel Bars, Carbon and Alloy *(Covers cold-finished bars. Spheroidize annealing is a specified option.)* | | **ASTM (USA)** | **ASTM A1074** | Specification for Hot-Rolled and Spheroidized Annealed Steel Bars for Forging and Similar Applications | | **UNS (USA)** | **G10700** | Unified Numbering System | | **DIN (Germany)** | **1.1231 / C70W2** | Equivalent grade for hardening steel, often supplied soft-annealed. | | **JIS (Japan)** | **SWRH72A / SWRH72B** | Similar grade for wire rod. | | **GB (China)** | **70#** | (GB/T 699, Quality Carbon Structural Steel) | --- **Processing Note:** The successful use of this material involves a standard workflow: 1. **Fabrication:** Machine or cold form the part from the soft, spheroidized annealed bar. 2. **Heat Treatment:** Harden by austenitizing (typically ~790-815°C / 1450-1500°F), quenching in oil, and then tempering at the desired temperature to achieve the final balance of hardness and toughness. 3. **Finishing:** Optional grinding or polishing. **Summary:** AISI 1070 cold-drawn, spheroidized annealed round bar is a high-performance *process-ready* material. It is engineered to facilitate complex manufacturing operations in the soft state, enabling the production of components that will ultimately possess the superior strength and durability inherent to high-carbon steel after final heat treatment. -:- For detailed product information, please contact sales. -: AISI 1070 Steel, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4863 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 1070 Steel, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1070 Steel Flange, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1070 Steel Flange, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1070 Steel Flange, cold drawn, spheroidized, annealed, 19-32 mm (0.75-1.25 in) 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 1334 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