MP35N Rod Ultra High Strength Nickel Cobalt Alloy For Aerospace Medical
MP35N Rod: Ultra-High Strength Nickel-Cobalt Alloy for Aerospace and Medical Applications
Product Overview
MP35N (UNS R30035) is a non-magnetic, age-hardenable nickel-cobalt-chromium-molybdenum alloy renowned for its exceptional combination of ultra-high strength, toughness, ductility, and outstanding corrosion resistance. This multiphase alloy is engineered to perform in the most demanding environments, making it ideal for applications in aerospace, medical devices, oil and gas, marine, and chemical processing industries.
Chemical Composition
| Element | Ni (%) | Co (%) | Cr (%) | Mo (%) | Fe (%) | Mn (%) | Si (%) | P (%) | S (%) | C (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| Min | 33.0 | Balance | 19.0 | 9.0 | – | – | – | – | – | – |
| Max | 37.0 | – | 21.0 | 10.5 | 1.0 | 0.15 | 0.15 | 0.015 | 0.01 | 0.025 |
Mechanical Properties
| Condition | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|
| AMS 5844 | 255 | 225 | 12 | 45 |
| AMS 5845 | 260 | 230 | 8 | ≥38 |
| NACE MR0175 | 220 | 210 | 10 | ≤51 |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.43 g/cm³ |
| Melting Point | 1440°C |
| Modulus of Elasticity | 234 GPa |
| Thermal Conductivity | 11.2 W/m·K |
| Coefficient of Expansion | 12.8 µm/m·°C |
| Electrical Resistivity | 1.67% IACS |
Standards and Specifications
| Standard | Description |
|---|---|
| AMS 5844 | Solution Heat Treated and Work Strengthened |
| AMS 5845 | Solution Heat Treated, Work Strengthened, and Aged |
| ASTM F562 | Wrought 35% Cobalt-35% Nickel-20% Chromium-10% Molybdenum Alloy for Surgical Implant Applications |
| NACE MR0175 | Materials for Use in H2S-Containing Environments in Oil and Gas Production |
Applications
MP35N rods are utilized in various industries due to their superior properties:
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Aerospace: Components such as fasteners and structural parts requiring high strength and resistance to fatigue.
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Medical Devices: Implants, surgical instruments, and orthodontic devices benefiting from biocompatibility and corrosion resistance.
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Oil and Gas: Downhole tools, valve stems, and springs exposed to harsh environments.
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Marine: Subsea components and fasteners resistant to seawater corrosion.
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Chemical Processing: Equipment parts exposed to aggressive chemicals and high temperatures.
FAQs
Q1: What is the maximum operating temperature for MP35N rods?
A1: MP35N rods can operate effectively up to temperatures of 800°F (427°C) in moderately elevated environments.
Q2: Can MP35N rods be welded?
A2: Yes, MP35N rods can be welded using standard welding techniques. However, post-weld heat treatment may be required to restore mechanical properties.
Q3: How does MP35N compare to other high-strength alloys?
A3: MP35N offers superior corrosion resistance and higher tensile strength compared to many other high-strength alloys, ensuring better performance in extreme conditions.
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