ASTM A229 Oil-tempered Steel Flange, Class I

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. -: ASTM A229 Oil-tempered Steel Flange Flange, Class I Product Information -:- For detailed product information, please contact sales. -: ASTM A229 Oil-tempered Steel Flange Flange, Class I Synonyms -:- For detailed product information, please contact sales. -:

ASTM A229 Oil-tempered Steel Wire, Class I Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A229 Oil-tempered Steel Wire, Class I** **ASTM A229 Class I** is an oil-tempered carbon steel wire specifically designed for mechanical spring applications requiring high strength and fatigue resistance. This class represents the standard grade within the A229 specification, offering excellent combination of properties for general-purpose spring manufacturing through oil quenching and tempering process. --- #### **1. International Standards & Classification** **Primary Standard:** **ASTM A229/A229M** - "Standard Specification for Steel Wire, Oil-Tempered for Mechanical Springs" **Classification:** - **Class I** - Standard oil-tempered steel spring wire - **Class II** - Special quality with closer dimensional tolerances **International Equivalents:** - **EN 10270-2**: FD (Oil Hardened and Tempered) grade - **JIS G 3560**: SWO-A - **GB/T 4358**: Class I - **ISO 8458-3**: Type A --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A229 Class I: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.55-0.65 | | Manganese (Mn) | 0.50-0.90 | | Phosphorus (P) | 0.025 | | Sulfur (S) | 0.025 | | Silicon (Si) | 0.15-0.35 | **Key Composition Features:** - **Medium Carbon Content**: 0.55-0.65% balanced for strength and toughness - **Manganese Range**: 0.50-0.90% for hardenability control - **Silicon Content**: 0.15-0.35% for solid solution strengthening - **Low Impurities**: Controlled phosphorus and sulfur for improved ductility --- #### **3. Physical & Mechanical Properties** **Mechanical Properties (Typical for various diameters):** | Wire Diameter (mm) | Tensile Strength (MPa) | Torsion Tests (min. twists) | |---|---|---| | 0.50-1.00 | 1700-2000 | 18-22 | | 1.01-2.00 | 1650-1950 | 16-20 | | 2.01-3.00 | 1600-1900 | 14-18 | | 3.01-4.00 | 1550-1850 | 12-16 | | 4.01-5.00 | 1500-1800 | 10-14 | **Physical Properties:** - **Density**: 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Shear Modulus**: 77 GPa (11,200 ksi) - **Fatigue Strength**: Excellent cyclic loading performance - **Thermal Conductivity**: 48.5 W/m·K --- #### **4. Product Applications** **Spring Manufacturing:** - Automotive suspension springs - Heavy-duty compression springs - Extension springs for industrial equipment - Torsion springs for machinery **Industrial Applications:** - Valve springs for engines - Clutch springs - Heavy machinery springs - Agricultural equipment springs **Transportation Industry:** - Truck suspension components - Railway vehicle springs - Off-road vehicle suspensions - Transportation equipment springs **Special Applications:** - Industrial door springs - Lift mechanism springs - Heavy-duty tool springs - Construction equipment springs --- #### **5. Fabrication Characteristics** **Forming Performance:** - **Good Cold Formability**: Suitable for cold coiling operations - **Consistent Springback**: Predictable behavior after forming - **Winding Characteristics**: Excellent for automatic spring coiling - **Surface Condition**: Clean surface suitable for most applications **Heat Treatment Response:** - **Oil Tempering**: Provides uniform microstructure - **No Additional Hardening**: Ready-to-use condition - **Stress Relieving**: Optional for critical applications - **Temperature Resistance**: Suitable for moderate temperature applications **Surface Quality:** - **Standard Finish**: Clean, scale-free surface - **Decarburization Control**: Minimal surface decarburization - **Coating Compatibility**: Good for plating and painting **Quality Assurance:** - **Tensile Testing**: Required for each lot - **Torsion Testing**: Mandatory quality control - **Dimensional Checks**: Standard commercial tolerances - **Surface Inspection**: Visual examination for defects --- ### **Technical Summary** ASTM A229 Class I oil-tempered steel wire represents a reliable and cost-effective solution for mechanical spring applications requiring good strength and fatigue resistance. The oil quenching and tempering process provides a fine, uniform microstructure that ensures consistent mechanical properties and excellent performance in spring applications. The medium carbon chemistry (0.55-0.65%) offers an optimal balance between strength and toughness, making this class suitable for a wide range of general-purpose spring applications. The tempering process after oil quenching ensures good ductility and reduces internal stresses, resulting in improved fatigue life compared to cold-drawn wires. This class is particularly valuable for applications where springs are subjected to dynamic loading conditions and require good resistance to fatigue failure. The consistent properties and reliable performance make ASTM A229 Class I a popular choice for automotive, industrial, and heavy equipment spring applications where durability and cost-effectiveness are important considerations. The wire's good formability and predictable behavior during spring manufacturing contribute to efficient production processes, while the standardized mechanical properties ensure consistent performance in finished spring products across various applications and industries. -:- For detailed product information, please contact sales. -: ASTM A229 Oil-tempered Steel Wire, Class I Specification Dimensions Size： Diameter 20-1000 mm Length <4347 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. -: ASTM A229 Oil-tempered Steel Wire, Class I Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A229 Oil-tempered Steel Flange Flange, Class I -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A229 Oil-tempered Steel Flange Flange, Class I -:- For detailed product information, please contact sales. -:

Packing of ASTM A229 Oil-tempered Steel Flange Flange, Class I -:- 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 818 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