AISI 1075 Carbon Steel Flange Bar

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 1075 Carbon Steel Flange Bar Product Information -:- For detailed product information, please contact sales. -: AISI 1075 Carbon Steel Flange Bar Synonyms -:- For detailed product information, please contact sales. -:

AISI 1075 Carbon Steel Bar Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: AISI 1075 Carbon Steel Bar** **AISI 1075** is a **high-carbon, non-alloy steel bar** renowned for its excellent combination of high strength, good hardenability, and superior wear resistance. As one of the most widely used high-carbon grades in the AISI/SAE 10xx series, it contains a carbon content that positions it at the threshold between high-strength engineering steel and simple tool steel. This makes it a versatile and cost-effective choice for a vast array of demanding applications, particularly those involving springs, cutting edges, and high-stress components that require heat treatment. AISI 1075 is valued for its ability to be readily heat treated (quenched and tempered) to achieve a wide range of hardness and strength levels, from tough, resilient springs to hard, wear-resistant tools. It offers a more balanced hardenability and slightly better toughness than the highest carbon grades (like 1095), while providing significantly greater strength potential than medium-carbon steels like 1045. --- ## **1. Chemical Composition (Per AISI/SAE 1075 Standard)** The composition is precisely controlled to deliver consistent hardenability and performance. | Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | **Key Characteristic** | | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | **0.70 - 0.80** | 0.40 - 0.70 | ≤ 0.040 | ≤ 0.050 | **High-carbon steel optimized for hardening and spring properties.** | | **Role** | **Primary driver of hardness, strength, and wear resistance.** | Enhances hardenability and solid solution strength. | Impurity; kept low. | Impurity; kept low. | A plain carbon steel, not a free-machining grade. | **Critical Features of the Composition:** * **High Carbon Content (0.70-0.80%):** This is the defining feature, providing the capacity to develop high hardness (up to ~66 HRC) and a high elastic limit after proper heat treatment, which is essential for spring applications. * **Moderate Manganese:** The manganese range is sufficient to provide good hardenability for oil quenching of moderate sections, allowing for uniform through-hardening, but is not so high as to excessively increase cracking sensitivity. * **Ideal for Springs:** The carbon and manganese balance is particularly well-suited for achieving the high yield strength and good fatigue resistance required in spring steel. --- ## **2. Physical & Mechanical Properties** Properties vary dramatically based on the **supplied condition** (e.g., hot-rolled, annealed, spheroidized) and the **final heat treatment**. **A. Common Supplied Conditions (for further processing):** * **Hot-Rolled (HR):** Hardness: ~235-302 HB. Poor machinability, used as forging stock or for parts with heavy machining allowance. * **Annealed/Spheroidized (ANN):** Hardness: ≤ 207 HB. Softer, designed for machining prior to hardening. * **Cold Drawn (CD):** Higher strength and better surface finish than HR. May be supplied in various tempers (e.g., hard drawn for springs). **B. After Quenching & Tempering (Example Final States):** * **Spring Temper (e.g., tempered at ~400-500°C / 750-930°F):** * Hardness: **40 - 50 HRC** * Tensile Strength: **1400 - 1800 MPa** * Excellent elastic limit and fatigue strength. * **Tool/Wear Temper (e.g., tempered at ~200-300°C / 390-570°F):** * Hardness: **55 - 62 HRC** * High wear resistance, lower toughness. * **General Characteristics:** Good fatigue strength, high compressive strength, and moderate toughness (for its hardness level) when properly tempered. --- ## **3. Product Applications** AISI 1075 is a fundamental material across multiple industries, prized for its performance after heat treatment. * **Springs (Primary Application):** **Coil springs, leaf springs, torsion bars, and spring clips** for automotive, agricultural, and industrial equipment. * **Cutting Tools & Blades:** **Knives, mower blades, hand tools (chisels, punches), and agricultural cutting edges.** * **High-Stress Fasteners & Shafts:** **Heavy-duty bolts, pins, and axles** that are heat-treated for strength. * **Wear Parts:** **Liners, scraper blades, and wear plates** in abrasive environments. * **Automotive Components:** **Clutch springs, valve springs, and suspension components.** --- ## **4. International & Equivalent Standards** AISI 1075 is a globally recognized grade with direct equivalents. | Standard System | Equivalent Grade | **Notes** | | :--- | :--- | :--- | | **AISI / SAE (USA)** | **1075** | The defining standard. | | **UNS** | G10750 | Unified Numbering System. | | **ASTM A29/A29M** | Grade 1075 (Bars) | Governing standard for hot-wrought or cold-finished bars. | | **ASTM A682** | Grade 1075 (Cold-Rolled Strip) | For spring steel strip. | | **EN 10083-2** | **1.1248 (C75E)** | European equivalent (C: 0.72-0.80%). "C75E" is the engineering steel designation. | | **JIS G4801** | **SUP9** | Japanese spring steel equivalent (0.56-0.64%C, Si-added). For similar application, **SK4/SK5** (JIS G4401) are closer in carbon content. | | **GB/T 699** | **75# Steel** | Chinese equivalent (0.72-0.80%C). | | **Common Synonyms** | Often referred to simply as **"spring steel 1075"**. | | **Key Distinction:** When ordering, it is crucial to specify both the **grade (AISI 1075)** and the **condition or temper** (e.g., "Hot Rolled", "Annealed", "Spring Temper", "Hard Drawn") to ensure receipt of material suitable for the intended manufacturing process. --- ## **5. Key Advantages & Considerations** **Advantages:** * **Excellent Hardenability & Strength:** Can be heat treated to achieve a very wide and useful range of high strength and hardness levels. * **Superior Spring Properties:** The carbon content is ideal for developing a high elastic limit, making it one of the most popular choices for high-performance spring applications. * **Good Wear Resistance:** When hardened, it provides excellent resistance to abrasion and wear. * **Cost-Effective Performance:** Delivers properties approaching those of low-alloy steels at a lower material cost. * **Proven Reliability:** Decades of use have established well-understood processing guidelines and performance data. **Considerations:** * **Requires Heat Treatment:** To achieve its notable properties, quenching and tempering are mandatory, adding cost and process complexity. * **Moderate Machinability:** Machinability is fair only in the fully softened (annealed) condition. In the hardened state, it is difficult to machine. * **Sensitivity to Quench Cracking:** The high carbon content increases the risk of cracking during quenching, requiring proper process control (often oil quenching) and immediate tempering. * **Limited Weldability:** **Poor weldability.** Welding is generally not recommended due to the high carbon content, which leads to a brittle heat-affected zone and high cracking susceptibility. If welding is absolutely necessary, extensive pre-heat and post-heat procedures are required. --- **Disclaimer:** The properties and performance of AISI 1075 are **highly dependent on the final heat treatment.** The values provided are typical ranges. For engineering design, it is essential to: 1. **Collaborate with a qualified heat treater** to define the optimal austenitizing temperature, quench medium, and tempering cycle for the specific component geometry and desired properties. 2. **Always specify the required condition** (annealed, spheroidized, hot-rolled, etc.) when ordering raw material. 3. **Consider the inherent trade-off:** Higher hardness (for wear) comes with lower toughness. The tempering temperature must be selected based on the primary service requirement (e.g., wear vs. impact resistance). -:- For detailed product information, please contact sales. -: AISI 1075 Carbon Steel Bar Specification Dimensions Size： Diameter 20-1000 mm Length <5113 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 1075 Carbon Steel Bar Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1075 Carbon Steel Flange Bar -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1075 Carbon Steel Flange Bar -:- For detailed product information, please contact sales. -:

Packing of AISI 1075 Carbon Steel Flange Bar -:- 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 1584 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