Maraging 350，Vascomax C350 Wire，,E FORU

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

**Product Name:** Maraging 350 / Vascomax® C350 Wire **Material Type:** Ultra-High-Strength Maraging Steel Wire **Standard:** AMS 6521, ASTM A579, MIL-S-8949 --- ### **Overview** Maraging 350 (Vascomax® C350) Wire is an ultra-high-strength, low-carbon martensitic steel supplied in wire form, combining exceptional strength with excellent fabrication characteristics. This product form maintains the fundamental advantages of the Maraging 350 alloy system while offering unique capabilities for specific manufacturing processes and applications requiring the highest level of strength and reliability in wire configurations. --- ### **Key Advantages** - **Ultra-High Strength:** 350 ksi (2413 MPa) nominal yield strength in aged condition - **Excellent Ductility:** Maintains good elongation despite extreme strength levels - **Precision Diameter Control:** Consistent dimensions for reliable performance - **Superior Surface Quality:** Minimizes defects in final applications - **Excellent Spring Properties:** High elastic limit and fatigue resistance - **Good Weldability:** Suitable for use as welding wire for high-strength 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) - **Electrical Resistivity:** 0.70 μΩ·m at 20°C #### **Mechanical Properties (Aged Condition)** | Property | Typical Value | |---------------------------|-------------------------------| | Tensile Strength | 2,400–2,550 MPa (348–370 ksi) | | Yield Strength (0.2% Offset) | 2,300–2,410 MPa (334–350 ksi)| | Elongation | 6–10% | | Reduction of Area | 35–45% | | Hardness | 54–57 HRC | | Fatigue Strength | Exceptionally High | --- ### **Available Forms & Specifications** #### **Diameter Ranges** - **Fine Wire:** 0.1 mm - 1.0 mm (0.004" - 0.040") - **Medium Wire:** 1.0 mm - 5.0 mm (0.040" - 0.200") - **Heavy Wire:** 5.0 mm - 12.0 mm (0.200" - 0.500") #### **Surface Conditions** - Bright finished - Oxide-free surface - Copper coated available - Special surface treatments upon request #### **Packaging Options** - Spools (various sizes) - Straight lengths - Coils - Custom packaging available --- ### **International Standards** - **AMS 6521G:** Maraging Steel 350 Bars and Wire - **ASTM A579/A579M:** Superstrength Alloy Steel Forgings - **MIL-S-8949:** Maraging Steel Plate, Sheet, and Strip - **ASTM A493:** Stainless Steel Wire and Wire Rods for Cold Heading --- ### **Applications** #### **Aerospace & Defense** - High-strength fasteners and pins - Springs for critical aerospace mechanisms - Wire for welding rocket motor cases - Control cable components - Safety wire applications - Missile guidance system components #### **Industrial & Manufacturing** - Springs for high-stress applications - Wire for cold heading and forming - Fastener manufacturing - Wire EDM electrode material - Precision shafting - High-performance industrial springs #### **Medical Devices** - Surgical instrument components - Orthodontic archwires - Implantable device elements - Guide wires (special processing required) #### **Oil & Gas** - Downhole tool components - Wireline applications - High-strength cabling - Control line wires --- ### **Fabrication & 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 - Special heat treatments available for specific applications #### **Welding Applications** - Used as filler wire for joining maraging steel components - Suitable for GTAW, GMAW, and PAW processes - Requires post-weld aging for full strength development - Matching composition ensures compatible properties #### **Manufacturing Processes** - Cold drawing to precise diameters - Straightening and cutting to length - Spooling for continuous processing - Surface treatment and coating --- ### **Quality Assurance** #### **Standard Testing** - Chemical analysis certification - Mechanical property verification - Surface quality inspection - Dimensional accuracy checking - Spooling quality assessment #### **Special Testing Available** - Fatigue testing - Stress rupture testing - Corrosion resistance evaluation - Microstructural analysis - Non-destructive testing --- ### **Technical Support Services** - Material selection guidance - Fabrication process optimization - Heat treatment consultation - Application engineering support - Custom wire development --- ### **Conclusion** Maraging 350/Vascomax® C350 Wire offers an exceptional combination of ultra-high strength, excellent fabrication characteristics, and reliable performance in demanding applications. Its versatility across multiple industries—from aerospace fasteners to medical devices and industrial springs—makes it a valuable material solution for engineers seeking the ultimate in strength-to-weight ratio and performance reliability. The wire's ability to be formed and processed in the soft condition and then strengthened to the highest levels available ensures its position as a critical material for advanced engineering applications. --- *Vascomax® is a registered trademark of leading specialty steel manufacturers. All technical data are typical values and should be verified for specific applications. Consult manufacturer's specifications for project-specific requirements and performance data.*

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 2663 gallon liquid totes Special package is available on request.