Cast Stainless Steel Tube,Pipe CA15M, ASTM A487

Cast Stainless Steel Tube CA15M, ASTM A487 Product Information -:- For detailed product information, please contact sales. -: Cast Stainless Steel Tube 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 Tube CA15M, ASTM A487 -:- For detailed product information, please contact sales. -: Chemical Identifiers Cast Stainless Steel Tube CA15M, ASTM A487 -:- For detailed product information, please contact sales. -:

Packing of Cast Stainless Steel Tube 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 Tube 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