Cast Stainless Steel Foil/Strip CA15M, ASTM A743

Cast Stainless Steel Foil CA15M, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: Cast Stainless Steel Foil CA15M, ASTM A743 Synonyms -:- For detailed product information, please contact sales. -:

Cast Stainless Steel CA15M, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Cast Stainless Steel CA15M, ASTM A743** #### **1. Product Overview** Cast Stainless Steel CA15M is a modified martensitic stainless steel conforming to ASTM A743 specification, designed for general corrosion-resistant applications requiring enhanced weldability and improved mechanical properties. The "M" designation indicates a modified composition with controlled carbon content and optimized alloying elements that provide superior performance in corrosive environments while maintaining excellent castability and fabrication characteristics. **Key Advantages:** - **Enhanced Corrosion Resistance:** Improved performance in mildly corrosive environments - **Superior Weldability:** Modified chemistry reduces cracking susceptibility - **Excellent Mechanical Properties:** Good strength and toughness combination - **Cost-Effective Solution:** Optimal performance-to-cost ratio for general corrosion applications - **Good Castability:** Suitable for producing 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 J91153:** 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 balanced to enhance corrosion resistance and mechanical properties. | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.06-0.15 | | Manganese (Mn) | 0.50-1.00 | | Silicon (Si) | 0.50-1.00 | | Phosphorus (P), max | 0.04 | | Sulfur (S), max | 0.04 | | Chromium (Cr) | 11.5-14.0 | | Nickel (Ni) | 0.50-1.00 | | Molybdenum (Mo) | 0.15-0.25 | *Note: The modified composition features controlled carbon content and added nickel for improved weldability and toughness.* --- #### **4. Mechanical Properties** Mechanical properties are determined in the heat-treated condition as required by ASTM A743. **Minimum Required Values:** - **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) - **Impact Energy:** 27 J (20 ft-lb) min at room temperature --- #### **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 Options:** **Annealing:** - Temperature: 815-900°C (1500-1650°F) - Soak time: 1 hour 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 2 hours per inch minimum --- #### **7. Corrosion Resistance** - **Atmospheric:** Excellent resistance to rural, urban, and mild industrial atmospheres - **Fresh Water:** Good performance in fresh water and steam 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-containing environments --- #### **8. Product Applications** CA15M cast stainless steel is widely used in various industries requiring corrosion resistance and mechanical reliability. **Primary Applications Include:** - **Chemical Processing Equipment:** Pump casings, valve bodies, and mixer components - **Oil and Gas Industry:** Wellhead components, flow control equipment, and Christmas tree parts - **Power Generation:** Turbine components, pump parts, and steam fittings - **Water Treatment:** Impellers, pump components, and valve bodies - **Marine Applications:** Pump parts, propeller hubs, and deck fittings - **Pulp and Paper Industry:** Processing equipment and digestor components --- #### **9. Fabrication & Welding Characteristics** **Casting Characteristics:** - Good fluidity and mold filling capability - Pattern shrinkage: 18-22 mm/m - Minimal hot tearing tendency - Suitable for complex casting 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: 150-250°C (300-480°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 - **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. CA15M 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 CA15M, ASTM A743 Specification Dimensions Size： Diameter 20-1000 mm Length <4166 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 A743 Properties -:- For detailed product information, please contact sales. -:

Applications of Cast Stainless Steel Foil CA15M, ASTM A743 -:- For detailed product information, please contact sales. -: Chemical Identifiers Cast Stainless Steel Foil CA15M, ASTM A743 -:- For detailed product information, please contact sales. -:

Packing of Cast Stainless Steel Foil/Strip CA15M, 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 Foil/Strip 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 637 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