AISI 1095 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 1095 Steel Flange, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round Product Information -:- For detailed product information, please contact sales. -: AISI 1095 Steel Flange, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1095 Steel, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round Product Information -:- For detailed product information, please contact sales. -: ### **Product Data Sheet: AISI 1095 Steel - Oil Quenched (800°C) & Tempered at 480°C (900°F), 25 mm (1 in.) Round** #### **1. Overview: A High-Performance Spring/Structural Temper for Medium Sections** This datasheet describes **AISI 1095 steel in a fully heat-treated service condition for a 25 mm (1 inch) diameter round**. The material has been austenitized at 800°C (1470°F), oil quenched, and tempered at 480°C (900°F). This treatment protocol is meticulously calibrated for the moderate section size, balancing the extreme hardness potential of AISI 1095 with a critical degree of toughness and elastic resilience. The 800°C austenitizing temperature helps control grain growth, while the 480°C temper produces a classic **high-strength spring temper**, optimizing the steel for applications demanding an exceptional combination of yield strength, wear resistance, and moderate toughness. This is one of the highest-performance states achievable with plain carbon steel in this diameter. **Heat Treatment Rationale for 25 mm Section:** * **Austenitizing at 800°C:** A precise temperature chosen to fully austenitize the steel while minimizing the risk of grain coarsening and excessive retained austenite, which are heightened in steels with carbon content near 1.0%. * **Oil Quench:** For a 25 mm round, an oil quench provides the optimal cooling rate. It is severe enough to achieve a fully martensitic microstructure throughout most of the cross-section (with a possible slight softening at the absolute core), while being sufficiently controlled to minimize the high risks of distortion and quench cracking inherent with water quenching on this grade. * **Temper at 480°C (900°F):** This intermediate-high tempering temperature effectively relieves the brittleness of the as-quenched martensite. It precipitates fine, stable carbides to create a tough, sorbitic microstructure with a **very high elastic limit**, essential for springs and components resisting permanent deformation. --- #### **2. Base Material Chemical Composition (AISI/SAE 1095)** | Element | Content (%) | | :--- | :--- | | **Carbon (C)** | **0.90 - 1.03** | | **Manganese (Mn)** | 0.30 - 0.50 | | **Phosphorus (P)** | ≤ 0.040 | | **Sulfur (S)** | ≤ 0.050 | | **Silicon (Si)** | 0.15 - 0.35 | | **Iron (Fe)** | Balance | --- #### **3. Final Mechanical & Physical Properties (In-Service State - 25 mm Round)** *Properties are for the heat-treated 25 mm diameter. Note: Due to the relatively low manganese content of 1095, a slight hardness gradient may exist, with the very core being marginally softer.* | Property | Typical Value / Description | | :--- | :--- | | **Microstructure** | **Tempered Martensite (Tempered Sorbite)** | | **Surface Hardness** | **45 - 51 HRC** (Rockwell C) / **~ 430 - 500 HB** | | **Core Hardness (Approx.)**| **40 - 47 HRC** (Minor gradient possible) | | **Tensile Strength** | **1400 - 1600 MPa (203 - 232 ksi)** | | **Yield Strength (0.2% Offset)** | **1250 - 1450 MPa (181 - 210 ksi)** | | **Elongation (in 50 mm)** | **~ 5 - 8%** | | **Reduction in Area** | **~ 20 - 30%** | | **Modulus of Elasticity** | ~ 200 GPa (29,000 ksi) | | **Fatigue Strength** | **Very High.** This temper provides excellent resistance to cyclic loading, especially if surface decarburization is controlled. | | **Impact Toughness** | **Moderate (for AISI 1095).** Represents a practical toughness-strength balance. Suitable for applications with some shock, but not severe impact. | | **Machinability** | **Very Poor.** Can only be finished by grinding or with very hard carbide tooling. All significant machining must be completed prior to heat treatment. | --- #### **4. Key In-Service Characteristics** * **Extremely High Elastic Limit & Yield Strength:** The foremost characteristic. This condition allows components to withstand exceptionally high static and cyclical stresses without taking a permanent set. * **Excellent Wear & Abrasion Resistance:** The high surface hardness provides outstanding resistance to wear, galling, and surface indentation. * **Good Dimensional Stability:** The 480°C temper provides substantial stress relief, resulting in stable components. * **Section-Size Limited Performance:** This treatment is near the limit for effective through-hardening of 1095 with an oil quench. The 25mm diameter ensures good, but not necessarily perfect, core properties. --- #### **5. Typical Applications for this 480°C Temper (25 mm Round)** Components designed to leverage the exceptional strength and wear resistance of AISI 1095 in a ~1-inch cross-section. * **High-Stress Flat Springs & Snap Rings:** **Heavy-duty leaf springs, high-load snap rings, and spring washers** where maximum elastic limit in a moderate section is required. * **High-Strength Axles, Pins & Mandrels:** **Pivot pins, linkage pins, and tool mandrels** in machinery that must resist shear and bending under high loads with good wear resistance. * **Cutting & Shearing Tools Requiring Toughness:** **Heavy-duty knives, machetes, and industrial shear blades** that need a combination of extreme edge retention and some resistance to chipping. * **Tooling & Machine Components:** **Jig and fixture details, press brake tooling, and heavy-duty rollers** requiring high hardness and resistance to deformation. * **Wear Parts:** **Bushings, guides, and non-gear drive components** subject to high contact stress and abrasion. --- #### **6. Relevant Standards & Specifications** | Standard / Aspect | Relevance to this Condition | | :--- | :--- | | **Base Material Standard** | **AISI 1095 / SAE J403 / UNS G10950** | | **Heat Treatment Specification** | Engineering drawing callout example:
“Heat treat: Austenitize at 800°C (1470°F), oil quench. Temper at 480°C (900°F) to 45-51 HRC.” | | **ASTM A29/A29M** | For the base bar stock. | | **ASTM A689** | Specification for Carbon and Alloy Steel Bars for Springs. This temper aligns with high-stress spring applications. | | **Internal/Process Specifications** | Often critical, due to the need for precise control of austenitizing and decarburization. | --- ### **Critical Processing & Design Considerations** 1. **Final State:** Components are **fully machined to final dimensions** (minus grinding allowance) prior to this heat treatment. 2. **Decarburization Control is Paramount:** Austenitizing must be performed in a **controlled atmosphere**. Surface decarburization would drastically reduce fatigue life and load-bearing capacity. 3. **Quench Medium:** **Oil quench is specified for this diameter.** Water would cause near-certain cracking. 4. **Immediate and Double Tempering:** Tempering must follow quenching immediately. **Double tempering is highly recommended** for this grade to ensure complete transformation and stress relief, maximizing toughness. 5. **Core Property Awareness:** Designers should be aware that the core hardness and strength may be slightly lower than the surface. For highly stressed torsion or bending applications, this gradient should be considered. **Summary:** **AISI 1095 oil-quenched from 800°C and tempered at 480°C in a 25 mm round represents a high-precision, performance-optimized condition.** It delivers an outstanding combination of **near-maximum strength, high hardness, and useful toughness**, making it a benchmark for demanding spring, tool, and wear applications in **moderate cross-sections**. Its successful implementation demands rigorous process control but rewards with exceptional mechanical performance. This treatment is chosen when the design requires the utmost from a simple steel chemistry, accepting the processing challenges for unparalleled strength and durability. -:- For detailed product information, please contact sales. -: AISI 1095 Steel, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round Specification Dimensions Size： Diameter 20-1000 mm Length <4912 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 1095 Steel, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1095 Steel Flange, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1095 Steel Flange, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 in.) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1095 Steel Flange, oil quenched 800°C (1470°F), 480°C (900°F) temper, 25 mm (1 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 1383 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