Maraging 250,Vascomax C250 Fittings,UNS K92940,E FORU

British Specs:BS S162，American Specs:AMS 6512 Bar, Tube, Forgings AMS 6520 Sheet, Strip and Plate ASTM A646 MIL-S-46850 Type 3，German Specs:WS 1.6359

### **Technical Data Sheet: Maraging 250 / Vascomax C250 Fittings (UNS K92940)** --- #### **1. Product Overview** **Vascomax C250 Fittings** (commercially designated as **Maraging 250 Fittings**, **UNS K92940**) are precision-engineered components manufactured from ultra-high-strength maraging steel, designed for critical connection and transition points in high-performance fluid and structural systems. These fittings maintain the exceptional strength-toughness combination of Vascomax C250 alloy in ready-to-install configurations, providing reliable performance in aerospace, defense, and energy applications where failure is not an option. --- #### **2. Chemical Composition (Weight %)** | Element | Min (%) | Max (%) | Function | |---------|----------|----------|----------| | **Nickel (Ni)** | 18.00 | 19.00 | Matrix strengthening | | **Cobalt (Co)** | 7.00 | 7.50 | Solid solution strengthening | | **Molybdenum (Mo)** | 4.60 | 5.10 | Precipitation hardening | | **Titanium (Ti)** | 0.40 | 0.50 | Primary age-hardening | | **Aluminum (Al)** | 0.05 | 0.10 | Secondary age-hardening | | **Carbon (C)** | - | 0.03 | Impurity control | | **Iron (Fe)** | - | - | Balance | --- #### **3. Mechanical & Physical Properties** **A. Mechanical Properties (Aged Condition)** - **Tensile Strength:** 1,793-1,862 MPa (260-270 ksi) - **Yield Strength:** 1,724-1,793 MPa (250-260 ksi) - **Elongation:** 10-12% - **Hardness:** 50-54 HRC - **Fracture Toughness:** 75-95 MPa√m - **Pressure Rating:** Suitable for systems up to 10,000 psi **B. Physical Properties** - **Density:** 8.00 g/cm³ - **Modulus of Elasticity:** 186 GPa - **Thermal Conductivity:** 20.0-22.0 W/m·K - **Thermal Expansion:** 10.6-11.1 × 10⁻⁶/°C --- #### **4. Fitting Types & Configurations** **Connection Styles** - MS (Military Standard) flareless fittings - AN (Army-Navy) flared fittings - JIC 37° flare fittings - ORFS (O-Ring Face Seal) fittings - Metric and ISO standard fittings - NPT and BSP threaded fittings **Standard Product Range** - **Elbows:** 45°, 90°, 120° - **Tees:** Straight, reducing, and cross types - **Unions:** Straight, bulkhead, and reducing - **Adapters:** Male/female combinations - **Caps and Plugs:** Various thread types - **Special Fittings:** Custom engineered solutions --- #### **5. Applications** **Aerospace & Aviation** - Rocket propulsion system fittings - Aircraft hydraulic system connectors - Space vehicle fluid system components - Helicopter hydraulic line fittings - Fuel system high-pressure connectors **Defense Applications** - Weapon system hydraulic fittings - Armor vehicle fluid system components - Missile system pressure fittings - Military aircraft high-pressure connectors - Naval vessel specialized fittings **High-Performance Industrial** - Racing hydraulic system components - High-pressure test equipment fittings - Energy industry specialized connectors - Process industry high-pressure fittings - Research equipment precision fittings --- #### **6. Standards & Specifications** | Organization | Standard | Description | |--------------|----------|-------------| | **AMS** | 6512 | Bars, Forgings, and Tubing | | **ASTM** | A538 | Grade 250 | | **UNS** | K92940 | Unified Numbering System | | **SAE** | AS4841 | Dash Size and Identification | --- #### **7. Manufacturing & Quality Assurance** **Manufacturing Process** - Raw Material: Premium vacuum melted stock - Machining: CNC turning and milling - Heat Treatment: Final aging after machining - Surface Treatment: Passivation per standards - Testing: 100% proof pressure testing **Quality Assurance** - Material Certification: Full traceability - Dimensional Verification: 100% inspected - Pressure Testing: 1.5x working pressure minimum - NDT: Magnetic particle or dye penetrant - Lot Control: Complete manufacturing history --- #### **8. Technical Advantages** **Performance Benefits** - Weight Reduction: 35-40% lighter than steel equivalents - Pressure Capability: Ultra-high pressure systems - Corrosion Resistance: Superior performance - Fatigue Life: Excellent under cyclic loading - Temperature Range: -54°C to +400°C **Reliability Features** - Leak-Free Performance: Precision machined surfaces - Vibration Resistance: Maintains integrity - Long Service Life: Exceptional wear resistance - Consistent Quality: Statistical process control --- #### **9. Installation & Maintenance** **Installation Guidelines** - Proper installation tools required - Torque specifications provided - Compatibility verification with system fluids - Regular inspection for critical applications **Maintenance Features** - Easy disassembly and reassembly - Reusable in most applications - Corrosion resistant - Long service intervals --- **Ordering Information:** - Standard and custom configurations - Complete certification package - Technical support available - Quick delivery options **Contact:** [Your Company Information] *Note: Vascomax is a registered trademark of Carpenter Technology Corporation. Fittings supplied ready for installation in fully heat-treated condition. Consult factory for current technical data and application recommendations.*

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel 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 2607 gallon liquid totes Special package is available on request.