Cast Stainless Steel Sheet,Plate CA6NM, ASTM A743

Cast Stainless Steel Sheet/Plate CA6NM, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: Cast Stainless Steel Sheet/Plate CA6NM, ASTM A743 Synonyms -:- For detailed product information, please contact sales. -:

Cast Stainless Steel CA6NM, ASTM A743 Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Cast Stainless Steel CA6NM, ASTM A743** #### **1. Product Overview** Cast Stainless Steel CA6NM (UNS J91540) under ASTM A743 specification is a martensitic stainless steel designed for general corrosion-resistant applications. This 13% chromium, 4% nickel alloy offers an optimal balance of corrosion resistance, mechanical strength, and fabrication characteristics. The controlled low carbon content combined with nickel addition provides enhanced toughness and weldability compared to conventional martensitic stainless steels, making it suitable for a wide range of corrosive environments. **Key Advantages:** - **Excellent Corrosion Resistance:** Superior to standard martensitic stainless steels in various corrosive media - **Good Mechanical Properties:** High strength combined with adequate toughness - **Enhanced Weldability:** Low carbon content reduces susceptibility to welding cracks - **Outstanding Cavitation Erosion Resistance:** Ideal for hydraulic applications - **Versatile Application Range:** Suitable for various industrial environments --- #### **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 J91540:** 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 optimize corrosion resistance and mechanical properties. | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.06 max | | Manganese (Mn) | 1.00 max | | Silicon (Si) | 1.00 max | | Phosphorus (P), max | 0.04 | | Sulfur (S), max | 0.03 | | Chromium (Cr) | 11.5-14.0 | | Nickel (Ni) | 3.5-4.5 | | Molybdenum (Mo) | 0.40-1.00 | *Note: Copper content is typically limited to 0.50% maximum as a residual element.* --- #### **4. Mechanical Properties** Mechanical properties are determined in the heat-treated condition as required by ASTM A743. **Minimum Required Values (Heat-Treated Condition):** - **Tensile Strength:** 760 MPa (110 ksi) - **Yield Strength (0.2% Offset):** 550 MPa (80 ksi) - **Elongation in 2" (50 mm):** 15% - **Reduction of Area:** 35% - **Hardness:** 217-269 HBW **Typical Achievable Properties:** - **Tensile Strength:** 795-930 MPa (115-135 ksi) - **Yield Strength:** 585-760 MPa (85-110 ksi) - **Elongation:** 18-25% - **Impact Energy:** 54-81 J (40-60 ft-lb) at room temperature --- #### **5. Physical Properties (Typical Values)** - **Density:** 7.75 g/cm³ (0.280 lb/in³) - **Modulus of Elasticity:** 200 GPa (29,000 ksi) - **Poisson's Ratio:** 0.27-0.30 - **Thermal Conductivity:** 25.5 W/m·K (at 100°C) - **Specific Heat Capacity:** 460 J/kg·K (at 0-100°C) - **Coefficient of Thermal Expansion:** 10.5 × 10⁻⁶/°C (20-100°C) - **Magnetic Permeability:** Magnetic in all conditions --- #### **6. Heat Treatment** **Standard Heat Treatment Practice:** **Austenitizing:** - Temperature: 980-1065°C (1800-1950°F) - Soak time: 1 hour per inch of thickness minimum - Cooling: Air cool or oil quench **Tempering:** - Temperature range: 550-650°C (1025-1200°F) - Soak time: 2 hours per inch of thickness minimum - Cooling: Air cool - Double tempering is often employed for optimal toughness --- #### **7. Corrosion Resistance** - **Atmospheric:** Excellent resistance to industrial and marine atmospheres - **Fresh Water:** Very good resistance to fresh water, steam, and condensate - **Chemical Media:** - Good resistance to organic acids, alkalis, and salt solutions - Moderate resistance to dilute mineral acids - Limited resistance to strong acids and chlorides - **Pitting Resistance:** Moderate resistance to pitting corrosion - **Cavitation Erosion:** Excellent resistance in hydraulic applications --- #### **8. Product Applications** CA6NM under ASTM A743 finds extensive use in various industries requiring corrosion resistance and mechanical reliability. **Primary Applications Include:** - **Pump Components:** Casings, impellers, diffusers, and wear rings - **Valve Bodies:** Gate, globe, ball, and check valves for corrosive service - **Hydraulic Turbine Components:** Runners, gates, and structural parts - **Marine Equipment:** Propeller hubs, shaft sleeves, and seawater system components - **Chemical Processing:** Mixer blades, agitators, and process equipment parts - **Oil & Gas Industry:** Wellhead components, Christmas tree parts, and flow control equipment --- #### **9. Fabrication & Welding Characteristics** **Casting Characteristics:** - Good castability with proper foundry practices - Pattern shrinkage: 20-22 mm/m - Requires adequate feeding for soundness - Suitable for complex geometries and varying section sizes **Machining:** - Good machinability in heat-treated condition - Use carbide tools with positive rake angles - Recommended cutting speeds: 25-35 m/min (80-115 SFM) - Adequate cooling and lubrication recommended **Welding:** - **Weldability:** Good with proper procedures - Preheating: 150-200°C (300-400°F) - Interpass temperature: 200-250°C (400-480°F) - Post-weld heat treatment: Required at 595-620°C (1100-1150°F) - Recommended filler metals: E410NiMo or equivalent --- #### **10. Quality Assurance & Testing** - **Chemical Analysis:** Per ASTM A751 requirements - **Mechanical Testing:** Tensile tests per ASTM A370 - **Hardness Testing:** Brinell or Rockwell methods - **Non-Destructive Testing:** - Radiographic examination per ASTM E94 - Magnetic particle examination per ASTM E709 - Liquid penetrant examination per ASTM E165 - **Heat Treatment Certification:** Complete documentation of thermal cycles - **Quality Grades:** Meets ASTM A743 requirements for corrosion-resistant applications - **Certification:** Full traceability with mill test certificates --- **Disclaimer:** This technical datasheet provides general information for reference purposes only. CA6NM under ASTM A743 is designed for general corrosion-resistant applications and requires proper heat treatment to achieve optimal properties. The material's performance may vary based on specific service conditions, casting design, and heat treatment parameters. Always consult the complete ASTM A743 standard and qualified materials engineers for critical applications. Proper selection, fabrication, and quality control are essential for successful performance in corrosive environments. -:- For detailed product information, please contact sales. -: Cast Stainless Steel CA6NM, ASTM A743 Specification Dimensions Size： Diameter 20-1000 mm Length <4170 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 CA6NM, ASTM A743 Properties -:- For detailed product information, please contact sales. -:

Applications of Cast Stainless Steel Sheet,Plate CA6NM, ASTM A743 -:- For detailed product information, please contact sales. -: Chemical Identifiers Cast Stainless Steel Sheet,Plate CA6NM, ASTM A743 -:- For detailed product information, please contact sales. -:

Packing of Cast Stainless Steel Sheet/Plate CA6NM, 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 Sheet/Plate 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 641 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