Maraging 350，Vascomax C350 Fittings，,E FORU

British Specs:，American Specs: AMS 6515 MIL-S-46850，German Specs: WS 1.6356

**Product Name:** Maraging 350 / Vascomax® C350 Fittings **Material Type:** Ultra-High-Strength Maraging Steel Fittings **Standard:** AMS 6521, AS 1820, MIL-F-2745 --- ### **Overview** Maraging 350 (commercially known as **Vascomax® C350**) Fittings are precision-engineered components manufactured from ultra-high-strength maraging steel. These fittings maintain the exceptional properties of the Maraging 350 alloy system while providing reliable performance in critical fluid and structural systems where failure is not an option. --- ### **Key Advantages** - **Ultra-High Pressure Rating:** Withstands extreme operating pressures - **Superior Strength-to-Weight Ratio:** Significant weight savings over conventional fittings - **Exceptional Thread Integrity:** Maintains thread strength under high torque loads - **Excellent Corrosion Resistance:** Suitable for harsh environments - **Minimal Distortion:** Stable dimensions during age hardening - **Proven Reliability:** Certified for critical aerospace and defense applications --- ### **Chemical Composition (Typical Weight %)** | Element | Content (%) | Element | Content (%) | |---------------|-------------|-------------|-------------| | Nickel (Ni) | 18.0–19.0 | Cobalt (Co) | 11.5–12.5 | | Molybdenum (Mo)| 4.6–5.2 | Titanium (Ti)| 1.3–1.6 | | Carbon (C) | ≤0.03 | Manganese (Mn)| ≤0.10 | | Silicon (Si) | ≤0.10 | Sulfur (S) | ≤0.010 | | Aluminum (Al) | 0.05–0.15 | Zirconium (Zr)| 0.01–0.02 | | Boron (B) | 0.003–0.005 | Iron (Fe) | Balance | --- ### **Physical & Mechanical Properties** #### **Physical Properties** - **Density:** 8.10 g/cm³ (0.292 lb/in³) - **Melting Point:** 1,410°C (2,570°F) - **Thermal Expansion Coefficient:** 10.2 × 10⁻⁶/°C (20–100°C) - **Modulus of Elasticity:** 185–190 GPa (27 × 10⁶ psi) - **Thermal Conductivity:** 19.0 W/m·K at 20°C #### **Mechanical Properties (Aged Condition)** | Property | Typical Value | |---------------------------|-------------------------------| | Tensile Strength | 2,450–2,550 MPa (355–370 ksi) | | Yield Strength (0.2% Offset) | 2,340–2,410 MPa (340–350 ksi)| | Elongation | 8–12% | | Reduction of Area | 35–50% | | Hardness | 54–57 HRC | | Fracture Toughness (K_Ic) | 55–80 MPa√m | --- ### **Product Specifications** #### **Available Types** - **Tube Fittings:** 37° flare and flareless types - **Pipe Fittings:** NPT, AN, MS configurations - **Special Fittings:** Custom designs per customer prints - **Size Range:** 1/8" to 2" nominal sizes #### **Standards Compliance** - **AS 1820:** Fitting, Tube, Flared, 37° and Flaredless - **MIL-F-2745:** Fittings, General Specification - **MS 33675:** Fitting Assemblies, Self-Aligning - **Customer Specifications:** Custom requirements accommodated --- ### **International Standards** - **AMS 6521:** Maraging Steel 350 Bars, Forgings, and Rings - **AS 1820:** Fitting, Tube, Flared, 37° and Flaredless, High Pressure - **MIL-F-2745:** Fittings, General Specification - **ASTM A579/A579M:** Superstrength Alloy Steel Forgings --- ### **Applications** #### **Aerospace & Defense** - Rocket propulsion system fittings - Aircraft hydraulic system components - Missile fuel and oxidizer lines - Space vehicle fluid systems - Helicopter control system fittings #### **Oil & Gas** - High-pressure instrumentation fittings - Downhole tool connections - Subsea equipment components - Wellhead control systems #### **Industrial & Automotive** - High-performance hydraulic systems - Racing fuel system components - Test and measurement equipment - High-pressure research facilities --- ### **Fabrication & Processing** #### **Manufacturing Methods** - Precision machining from bar stock - Closed-die forging for complex shapes - CNC machining for tight tolerances - Special thread processing #### **Heat Treatment** - **Solution Annealing:** 820°C ± 10°C (1,500°F ± 20°F) - **Age Hardening:** 480°C ± 5°C (900°F ± 10°F) for 3–6 hours - **Stress Relieving:** Available for complex geometries #### **Quality Processing** - Vapor degreasing and cleaning - Passivation treatments available - Special surface treatments upon request --- ### **Quality Assurance** #### **Standard Testing** - 100% Liquid Penetrant Inspection - Magnetic Particle Inspection - Dimensional verification - Pressure testing to 1.5x working pressure - Material certification #### **Additional Services** - Third-party inspection - Source inspection available - Certified test reports - Full traceability documentation --- ### **Installation Guidelines** - Use proper torque values for assembly - Follow recommended installation procedures - Use compatible sealing methods - Verify system compatibility - Follow age-hardening requirements if modified --- ### **Conclusion** Maraging 350/Vascomax® C350 Fittings provide the ultimate solution for critical fluid system connections where reliability, strength, and performance are paramount. Their certified quality, proven performance history, and exceptional mechanical properties make them the preferred choice for aerospace, defense, and high-performance industrial applications where system integrity cannot be compromised. --- *Vascomax® is a registered trademark of leading specialty steel manufacturers. All fittings should be installed by qualified personnel following applicable standards and procedures.*

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 2659 gallon liquid totes Special package is available on request.