Cast Stainless Steel Flange CA15M, ASTM A487

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. -: Cast Stainless Steel Flange CA15M, ASTM A487 Product Information -:- For detailed product information, please contact sales. -: Cast Stainless Steel Flange CA15M, ASTM A487 Synonyms -:- For detailed product information, please contact sales. -:

Cast Stainless Steel CA15M, ASTM A487 Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Cast Stainless Steel CA15M, ASTM A487** #### **1. Product Overview** Cast Stainless Steel CA15M is a modified martensitic stainless steel conforming to ASTM A487 specification, designed specifically for pressure-containing parts requiring enhanced weldability and impact toughness. The "M" designation indicates a modified composition with controlled carbon content and additional alloying elements that improve both fabrication characteristics and service performance in corrosive environments. This grade offers an optimal balance of corrosion resistance, mechanical strength, and manufacturability for demanding pressure applications. **Key Advantages:** - **Enhanced Weldability:** Lower carbon content reduces susceptibility to welding cracks - **Improved Toughness:** Better impact resistance compared to standard CA15 - **Good Corrosion Resistance:** Suitable for mildly corrosive environments - **Pressure-Rated:** Meets ASTM A487 requirements for pressure-containing parts - **Heat Treatable:** Responds well to various heat treatment processes --- #### **2. International Standard** This product conforms to the latest edition of: - **ASTM A487/A487M:** Standard Specification for Steel Castings Suitable for Pressure Service Additional applicable standards: - **UNS J91153:** Unified Numbering System designation - **ASME SA487:** ASME Boiler and Pressure Vessel Code equivalent - **ASTM A703/A703M:** Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts --- #### **3. Chemical Composition (Heat Analysis, %)** The chemical composition is carefully modified to enhance weldability and toughness while maintaining corrosion resistance. | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.06-0.15 | | Manganese (Mn) | 0.50-1.00 | | Silicon (Si) | 0.50-1.00 | | Phosphorus (P), max | 0.03 | | Sulfur (S), max | 0.03 | | Chromium (Cr) | 11.5-13.5 | | Nickel (Ni) | 0.50-1.00 | | Molybdenum (Mo) | 0.15-0.25 | *Note: The modified composition features lower carbon and controlled nickel content for improved weldability and toughness.* --- #### **4. Mechanical Properties** Mechanical properties are determined in the heat-treated condition as required by ASTM A487. **Minimum Required Values (Heat-Treated Condition):** - **Tensile Strength:** 620 MPa (90 ksi) - **Yield Strength (0.2% Offset):** 450 MPa (65 ksi) - **Elongation in 2" (50 mm):** 18% - **Reduction of Area:** 35% **Typical Achievable Properties:** - **Tensile Strength:** 690-860 MPa (100-125 ksi) - **Yield Strength (0.2% Offset):** 515-690 MPa (75-100 ksi) - **Elongation:** 20-25% in 2" (50 mm) - **Hardness:** 170-230 HBW (heat-treated) --- #### **5. Physical Properties (Typical Values)** - **Density:** 7.72 g/cm³ (0.279 lb/in³) - **Modulus of Elasticity:** 200 GPa (29,000 ksi) - **Poisson's Ratio:** 0.27-0.30 - **Thermal Conductivity:** 25.2 W/m·K (at 100°C) - **Specific Heat Capacity:** 460 J/kg·K (at 0-100°C) - **Coefficient of Thermal Expansion:** 10.4 × 10⁻⁶/°C (20-100°C) - **Magnetic Permeability:** Magnetic in all conditions --- #### **6. Heat Treatment** **Standard Heat Treatment Sequence:** **Normalizing:** - Temperature: 955-1010°C (1750-1850°F) - Soak time: 1 hour per inch of thickness - Cooling: Air cool **Tempering:** - Temperature: 595-760°C (1100-1400°F) - Soak time: 2 hours per inch of thickness minimum - Cooling: Air cool **Alternative Treatment:** - Quenching: Oil or air quench from 980-1010°C (1800-1850°F) - Double tempering available for optimal toughness --- #### **7. Corrosion Resistance** - **Atmospheric:** Excellent resistance to rural, urban, and mild industrial atmospheres - **Fresh Water:** Good performance in fresh water, steam, and condensate systems - **Chemical:** Moderate resistance to organic acids, alkalis, and salt solutions - **Oxidation Resistance:** Suitable for continuous service up to 760°C (1400°F) - **Pitting Resistance:** Limited resistance to chloride-induced pitting --- #### **8. Product Applications** CA15M cast stainless steel is widely used in pressure-containing applications across various industries. **Primary Applications Include:** - **Pressure Vessel Components:** Reactor parts, separator components, and pressure shells - **Valve Bodies & Trim:** Gate valves, globe valves, and control valves for corrosive service - **Pump Casings & Impellers:** Chemical process pumps, water injection pumps, and slurry pumps - **Oil & Gas Equipment:** Wellhead components, Christmas tree parts, and flow control equipment - **Power Generation:** Turbine casings, steam fittings, and power plant components - **Chemical Processing:** Mixer components, reactor parts, and processing equipment --- #### **9. Fabrication & Welding Characteristics** **Casting Characteristics:** - Good fluidity and castability - Pattern shrinkage: 18-22 mm/m - Minimal hot tearing tendency - Suitable for complex geometries **Machining:** - Good machinability in heat-treated condition - Recommended tools: Carbide inserts with positive rake angles - Cutting speeds: 25-35 m/min (80-115 SFM) - Adequate cooling required **Welding:** - **Weldability:** Good (with proper procedures) - Preheating: 150-200°C (300-400°F) - Interpass temperature: 200-300°C (400-600°F) - Post-weld heat treatment: 595-620°C (1100-1150°F) - Recommended electrodes: E410NiMo or nickel-base alloys --- #### **10. Quality Assurance & Testing** - **Chemical Analysis:** Per ASTM A751 requirements - **Mechanical Testing:** Tensile tests per ASTM A370 from separately cast coupons - **Non-Destructive Testing:** Radiographic (ASTM E94), magnetic particle (ASTM E709), or liquid penetrant (ASTM E165) examination - **Heat Treatment Certification:** Complete documentation of thermal cycles - **Quality Classes:** Available in different quality levels as specified in ASTM A487 - **Certification:** Full traceability with mill test certificates including heat treatment records --- **Disclaimer:** This technical datasheet provides general information for reference purposes only. CA15M is designed for pressure-containing applications and requires strict adherence to ASTM A487 requirements. The properties and performance characteristics may vary based on specific heat treatment parameters, casting design, and service conditions. Always consult the complete ASTM A487 standard and work with qualified materials engineers for critical pressure applications. Proper quality control and non-destructive examination are essential for pressure-containing components. -:- For detailed product information, please contact sales. -: Cast Stainless Steel CA15M, ASTM A487 Specification Dimensions Size： Diameter 20-1000 mm Length <4165 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. -: Cast Stainless Steel CA15M, ASTM A487 Properties -:- For detailed product information, please contact sales. -:

Applications of Cast Stainless Steel Flange CA15M, ASTM A487 -:- For detailed product information, please contact sales. -: Chemical Identifiers Cast Stainless Steel Flange CA15M, ASTM A487 -:- For detailed product information, please contact sales. -:

Packing of Cast Stainless Steel Flange CA15M, ASTM A487 -:- 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 636 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