Maraging 350，Vascomax C350 Forgings，,E FORU

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

**Product Name:** Maraging 350 / Vascomax® C350 Forgings **Material Type:** Ultra-High-Strength Maraging Steel Forgings **Standard:** AMS 6521, ASTM A579, MIL-S-8949 --- ### **Overview** Maraging 350 (commercially known as **Vascomax® C350**) Forgings represent the highest level of ultra-high-strength component manufacturing. Produced through controlled forging processes, these components exhibit superior grain structure, enhanced mechanical properties, and optimized grain flow, making them ideal for the most demanding aerospace, defense, and industrial applications. --- ### **Key Advantages** - **Superior Grain Structure:** Optimized grain flow for enhanced mechanical properties - **Enhanced Density:** Elimination of internal voids and defects - **Ultra-High Strength:** 350 ksi yield strength in aged condition - **Exceptional Toughness:** High fracture toughness despite extreme strength - **Improved Fatigue Life:** Superior resistance to cyclic loading - **Reliability:** Consistent properties throughout component cross-section --- ### **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 | --- ### **Manufacturing Capabilities** #### **Forging Processes** - **Open Die Forgings:** Large, simple shapes - **Closed Die Forgings:** Complex, net-shape components - **Ring Rolled Forgings:** Circular and annular components - **Precision Forgings:** Minimal machining allowance #### **Available Forms** - **Weight Range:** 1 kg to 5,000 kg - **Size Capacity:** Up to 3 meters in length - **Complexity:** Simple to highly complex geometries --- ### **International Standards** - **AMS 6521:** Maraging Steel 350 Bars, Forgings, and Rings - **ASTM A579/A579M:** Superstrength Alloy Steel Forgings - **MIL-S-8949:** Maraging Steel Plate, Sheet, and Strip - **AMS 2759/9:** Heat Treatment of Maraging Steels --- ### **Applications** #### **Aerospace & Defense** - Rocket motor cases and missile bodies - Aircraft landing gear components - Helicopter rotor hubs and drive systems - Space vehicle structural members - Artillery and tank components #### **Industrial & Tooling** - Extrusion press rams and containers - High-pressure vessel components - Plastic injection molding machine components - Die-casting machine components #### **Marine & Energy** - Submarine components - Deep-sea exploration equipment - Marine propulsion systems - Nuclear reactor components --- ### **Heat Treatment Process** #### **Solution Treatment** - Temperature: 820°C ± 10°C (1,500°F ± 20°F) - Time: 1 hour per 25 mm of thickness - Cooling: Air cool or faster #### **Age Hardening** - Temperature: 480°C ± 5°C (900°F ± 10°F) - Time: 3–6 hours (section size dependent) - Cooling: Air cool --- ### **Quality Assurance** #### **Non-Destructive Testing** - 100% Ultrasonic Inspection per AMS 2630 - Magnetic Particle Inspection - Liquid Penetrant Inspection - Radiographic Testing (when specified) #### **Destructive Testing** - Chemical analysis verification - Mechanical property testing - Macro-etch testing for grain flow - Microstructural examination #### **Certification** - Full traceability from melt to final component - Certified material test reports - Heat treatment documentation - Dimensional inspection reports --- ### **Design & Engineering Support** - Material selection assistance - Forging design optimization - Heat treatment consultation - Manufacturing process development --- ### **Conclusion** Maraging 350/Vascomax® C350 Forgings provide an unmatched combination of ultra-high strength, exceptional toughness, and superior structural reliability. The forging process enhances these inherent material advantages, delivering components with optimized grain structure and proven performance for the world's most challenging applications in aerospace, defense, and high-performance industrial sectors. --- *Vascomax® is a registered trademark of leading specialty steel manufacturers. All forgings are supplied with complete certification and traceability documentation. Properties may vary based on specific forging size, shape, and heat treatment parameters.*

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 2660 gallon liquid totes Special package is available on request.