ASTM A27 Grade U-60-30 Cast Carbon 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. -: ASTM A27 Grade U-60-30 Cast Carbon Steel Flange Product Information -:- For detailed product information, please contact sales. -: ASTM A27 Grade U-60-30 Cast Carbon Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

ASTM A27 Grade U-60-30 Cast Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Technical Datasheet: ASTM A27 Grade U-60-30 Cast Carbon Steel** ## **1. Product Overview** **ASTM A27 Grade U-60-30** is a foundational, **general-purpose carbon steel casting** grade specified for applications where weldability, machinability, and cost-effectiveness are prioritized over high strength. It is the most commonly specified grade within the ASTM A27 standard and serves as a versatile, economical material for a vast range of non-critical industrial components. The grade designation "U-60-30" indicates a **minimum tensile strength of 60 ksi (415 MPa)** and a **minimum yield strength of 30 ksi (205 MPa)**. Castings are typically supplied in the as-cast or annealed condition, offering the most straightforward manufacturing process within the standard. ## **2. Governing International Standard** This product is manufactured and procured in accordance with **ASTM A27 / A27M – Standard Specification for Steel Castings, Carbon, for General Application**. This international standard establishes the requirements for carbon steel castings intended for general service where high ductility and ease of fabrication are essential. Grade U-60-30 represents the baseline strength level for such applications. ## **3. Chemical Composition** The composition is optimized for excellent castability, soundness, and weldability. The requirements for Grade U-60-30 (Grade 415-205) are as follows (in weight %, maximum unless range is given): * **Carbon (C):** 0.30% max * **Manganese (Mn):** 0.60% min / 0.90% max * **Silicon (Si):** 0.80% max * **Phosphorus (P):** 0.05% max * **Sulfur (S):** 0.06% max * **Residual Elements:** Copper (Cu) ≤ 1.00%; Nickel (Ni) ≤ 0.50%; Chromium (Cr) ≤ 0.50%; Molybdenum (Mo) ≤ 0.25%; Vanadium (V) ≤ 0.05% (combined ≤ 1.00%). **Key Feature:** The controlled, relatively low carbon and manganese content defines its primary characteristics of **superior weldability** and **high ductility**. ## **4. Physical & Mechanical Properties** * **Minimum Mechanical Properties (as per ASTM A27):** * **Tensile Strength:** 60 ksi (415 MPa) * **Yield Strength (0.2% Offset):** 30 ksi (205 MPa) * **Elongation in 2" (50 mm):** 24% min * **Note:** Reduction of Area is **not a mandatory requirement** for this grade, emphasizing its application focus on ductility and formability rather than ultimate toughness. * **Typical Achieved Properties:** * **Hardness:** Typically 120 - 170 HBW (Brinell Hardness) in the as-cast or annealed condition. * **Modulus of Elasticity:** 29 x 10⁶ psi (200 GPa) * **Poisson's Ratio:** 0.29 * **Density:** 7.85 g/cm³ * **Impact Resistance:** Offers good toughness at room temperature due to its low carbon content and ferritic-pearlitic microstructure. * **Common Conditions:** Castings are most often used in the **as-cast** (no heat treatment) or **annealed** condition. Annealing is employed to relieve casting stresses, improve machinability, and ensure dimensional stability for precision parts. ## **5. Key Characteristics & Engineering Advantages** * **Exceptional Weldability:** Its low carbon equivalent makes it highly suitable for all common welding processes without requiring complex preheat or post-weld heat treatment procedures, minimizing fabrication costs and distortion. * **Superior Ductility and Formability:** The high minimum elongation (24%) makes it a forgiving material that can yield under overload rather than fracture catastrophically, suitable for components with some degree of fit-up adjustment. * **Excellent Machinability:** Its moderate hardness and uniform microstructure allow for easy machining with high material removal rates, excellent surface finish, and extended tool life. * **Cost-Effectiveness:** As the most basic grade in the A27 standard, it involves the lowest alloying costs and often requires no heat treatment, making it the most economical choice for steel castings. * **Good Castability and Pressure Tightness:** Properly produced, it yields sound castings with good fluidity and acceptable pressure integrity for many low-pressure applications. ## **6. Typical Applications** ASTM A27 Grade U-60-30 is the industry's go-to material for a vast array of general engineering and structural components where high strength is not the primary driver: * **General Machinery:** Machine bases, covers, brackets, housings, and non-critical gear blanks. * **Piping and Fluid Handling:** Low-pressure valve bodies, pump casings, pipe fittings, and flanges for water and non-corrosive services. * **Construction and Infrastructure:** Manhole covers, gratings, construction hardware, and architectural elements. * **Agriculture:** Implement frames, housing parts, and linkage components for farm equipment. * **Material Handling:** Conveyor frames, non-load-bearing hooks, and chutes. * **Textile and Food Processing:** Machine frames and components where corrosion resistance is not required. ## **7. Summary** **ASTM A27 Grade U-60-30** is the quintessential **economical, fabricable, and reliable workhorse** of the carbon steel casting world. It is selected not for high performance, but for its **unmatched combination of ease of fabrication (welding/machining), good ductility, and low cost**. This grade is ideal for high-volume production of components where the design is governed by stiffness and geometry rather than by high tensile or yield strength requirements. For countless non-critical, general-purpose applications, it remains the default and most value-conscious material specification. -:- For detailed product information, please contact sales. -: ASTM A27 Grade U-60-30 Cast Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5858 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 A27 Grade U-60-30 Cast Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A27 Grade U-60-30 Cast Carbon Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A27 Grade U-60-30 Cast Carbon Steel Flange -:- For detailed product information, please contact sales. -:

Packing of ASTM A27 Grade U-60-30 Cast Carbon 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 2329 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