Cast Stainless Steel Flange CA15, ASTM A743

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 CA15, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: Cast Stainless Steel Flange CA15, ASTM A743 Synonyms -:- For detailed product information, please contact sales. -:

Cast Stainless Steel CA15, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Cast Stainless Steel CA15, ASTM A743** #### **1. Product Overview** Cast Stainless Steel CA15 conforming to ASTM A743 is a martensitic chromium stainless steel specifically designed for corrosion-resistant applications. This grade offers an optimal balance of corrosion resistance, mechanical properties, and cost-effectiveness, making it suitable for various corrosive environments where austenitic stainless steels are not required. The material exhibits good resistance to atmospheric corrosion, mild chemicals, and oxidation at elevated temperatures. **Key Advantages:** - **Good Corrosion Resistance:** Superior performance in mildly corrosive environments compared to carbon steels - **High Strength Capability:** Can be heat treated to achieve desirable mechanical properties - **Oxidation Resistance:** Suitable for service up to 760°C (1400°F) - **Cost-Effective Solution:** More economical than higher alloy stainless steels - **Good Castability:** Exhibits excellent foundry characteristics for complex geometries --- #### **2. International Standard** This product conforms to the latest edition of: - **ASTM A743/A743M:** Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, and Nickel-Base Corrosion-Resistant Alloys for General Application Additional applicable standards: - **UNS J91150:** Unified Numbering System designation - **ASME SA743:** ASME Boiler and Pressure Vessel Code equivalent - **ISO 11972:** Corrosion-resistant cast steels for general applications --- #### **3. Chemical Composition (Heat Analysis, %)** The chemical composition is carefully controlled to ensure consistent corrosion resistance and mechanical properties. | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.15 max | | Manganese (Mn) | 1.00 max | | Silicon (Si) | 1.50 max | | Phosphorus (P), max | 0.04 | | Sulfur (S), max | 0.04 | | Chromium (Cr) | 11.5-14.0 | | Nickel (Ni) | 1.00 max | | Molybdenum (Mo) | 0.50 max | *Note: The composition may include residual elements within specified limits to enhance specific properties.* --- #### **4. Mechanical Properties** Mechanical properties are typically determined in the heat-treated condition as required by ASTM A743. **As-Cast Condition (Minimum Values):** - **Tensile Strength:** 620 MPa (90 ksi) - **Yield Strength (0.2% Offset):** 450 MPa (65 ksi) - **Elongation:** 18% in 2" (50 mm) - **Reduction of Area:** 35% **Heat-Treated Condition (Typical):** - **Tensile Strength:** 690-895 MPa (100-130 ksi) - **Yield Strength (0.2% Offset):** 485-690 MPa (70-100 ksi) - **Elongation:** 15-20% in 2" (50 mm) - **Hardness:** 121-212 HBW (annealed) --- #### **5. Physical Properties (Typical Values)** - **Density:** 7.70 g/cm³ (0.278 lb/in³) - **Modulus of Elasticity:** 200 GPa (29,000 ksi) - **Poisson's Ratio:** 0.27-0.30 - **Thermal Conductivity:** 24.9 W/m·K (at 100°C) - **Specific Heat Capacity:** 460 J/kg·K (at 0-100°C) - **Coefficient of Thermal Expansion:** 10.3 × 10⁻⁶/°C (20-100°C) - **Magnetic Permeability:** Magnetic in all conditions --- #### **6. Heat Treatment** **Standard Heat Treatment Options:** **Annealing:** - Process: Heat to 815-900°C (1500-1650°F) - Soak: 1-2 hours per inch of thickness - Cooling: Furnace cool to 480°C (900°F), then air cool **Hardening & Tempering:** - Austenitizing: 955-1010°C (1750-1850°F) - Quenching: Air cool or oil quench - Tempering: 595-760°C (1100-1400°F) for stress relief and toughness --- #### **7. Corrosion Resistance** - **Atmospheric:** Excellent resistance to rural, urban, and industrial atmospheres - **Fresh Water:** Good resistance to fresh water, steam, and condensate - **Chemical:** Moderate resistance to organic acids, alkalis, and salt solutions - **Oxidation Resistance:** Good scaling resistance up to 815°C (1500°F) - **Limitations:** Not recommended for hydrochloric acid or severe chloride environments --- #### **8. Product Applications** CA15 cast stainless steel finds extensive use in various industries requiring corrosion resistance and mechanical integrity. **Primary Applications Include:** - **Chemical Processing Equipment:** Pumps, valves, and mixer components - **Oil and Gas Industry:** Wellhead components, Christmas tree parts, flow control equipment - **Power Generation:** Turbine blades, pump casings, and steam fittings - **Water Treatment:** Impellers, pump components, and valve bodies - **Pulp and Paper Industry:** Digester components and processing equipment - **Marine Applications:** Pump parts, propeller hubs, and deck fittings --- #### **9. Fabrication & Welding Characteristics** **Casting Characteristics:** - Good fluidity and mold filling capability - Moderate pattern shrinkage allowance: 20-25 mm/m - Suitable for all standard casting processes **Machining:** - Best performed in annealed condition - Use positive rake tools with carbide inserts - Recommended cutting speeds: 20-30 m/min (65-100 SFM) - Adequate cooling and lubrication required **Welding:** - **Weldability:** Fair (requires proper procedures) - Preheating: 200-300°C (400-600°F) - Post-weld heat treatment: 595-620°C (1100-1150°F) - Recommended electrodes: E410 or E410NiMo --- #### **10. Quality Assurance & Testing** - **Chemical Analysis:** Per ASTM A751 requirements - **Mechanical Testing:** Tensile tests per ASTM A370 - **Non-Destructive Testing:** Radiographic, magnetic particle, or liquid penetrant examination available - **Heat Treatment Certification:** Complete documentation of thermal cycles - **Quality Grades:** Available in different quality levels as specified in ASTM A743 - **Certification:** Full traceability with mill test certificates --- **Disclaimer:** This technical datasheet provides general information for reference purposes only. The properties and performance characteristics may vary based on specific heat treatment, casting parameters, and service conditions. CA15 is not recommended for severe corrosive applications or environments containing high chloride concentrations. Always consult the complete ASTM A743 standard and qualified materials engineers for critical applications. Proper heat treatment and quality control are essential to achieve the desired corrosion resistance and mechanical properties. -:- For detailed product information, please contact sales. -: Cast Stainless Steel CA15, ASTM A743 Specification Dimensions Size： Diameter 20-1000 mm Length <4164 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 CA15, ASTM A743 Properties -:- For detailed product information, please contact sales. -:

Applications of Cast Stainless Steel Flange CA15, ASTM A743 -:- For detailed product information, please contact sales. -: Chemical Identifiers Cast Stainless Steel Flange CA15, ASTM A743 -:- For detailed product information, please contact sales. -:

Packing of Cast Stainless Steel Flange CA15, ASTM A743 -:- 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 635 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