MP35N®
MP35N is a non-magnetic, nickel-cobalt-chromium-molybdenum alloy possessing a unique combination of ultra-high tensile strength (up to 300 ksi), good toughness, and excellent corrosion resistance. It stands out for its resistance to sulfidation, high-temperature oxidation, and hydrogen embrittlement.
- Formas comuns: Round Bar, Wire, Tubing, Sheet.
- Caraterística principal: Ultra-high strength + Biocompatibility.
- Corrosion: Excellent resistance to crevice corrosion and stress cracking.
- Hardening: Work-hardened and aged to achieve max strength.
MP35N is chosen when "compromise" is not an option. Usually, metals are either strong but prone to corrosion (like carbon steel) or corrosion-resistant but soft (like pure titanium). MP35N offers the strength of the strongest steels combined with the corrosion resistance of the best superalloys.
Ultra-High Strength
Through cold working and aging, it can achieve tensile strengths up to 300,000 psi (2068 MPa), making it ideal for fasteners and springs.
Biocompatibility
Highly resistant to bodily fluids and proven to be biocompatible, making it a standard for long-term medical implants and leads.
NACE Compliance
Resistant to sulfide stress cracking and hydrogen embrittlement, meeting NACE MR0175 standards for sour gas oilfield environments.
| Elemento | Conteúdo (%) |
|---|---|
| Níquel (Ni) | 33.0 - 37.0 |
| Cobalto (Co) | 33.0 - 37.0 |
| Crómio (Cr) | 19.0 - 21.0 |
| Molibdénio (Mo) | 9.0 - 10.5 |
| Titânio (Ti) | 1.0 max |
| Ferro (Fe) | 1.0 max |
*Note: The balanced Nickel-Cobalt base provides the unique property mix.
| Forma do produto | Standards (AMS / ASTM) |
|---|---|
| Bar, Rod, Wire, Forgings | AMS 5844 (Solution Heat Treated & Cold Drawn) |
| Bar (Aged) | AMS 5845 (Solution, Cold Drawn & Aged) |
| Surgical Implants | ASTM F562 |
| Petróleo e gás | NACE MR0175 (Sour Service) |
| Condition | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) |
|---|---|---|---|
| Annealed | 130 - 150 | 50 - 80 | 40 - 60% |
| Cold Drawn (45-55%) | 200 - 230 | 190 - 220 | 10 - 15% |
| Cold Drawn & Aged | 260 - 300 | 250 - 290 | 8 - 12% |
*Note: MP35N derives its immense strength from work hardening (cold drawing) followed by aging.
Medical Devices
Pacing leads, stylets, catheters, and orthopedic implants requiring high fatigue life and bio-inertness.
Aerospace Fasteners
High-strength bolts and screws (Multiphase®) used in critical airframe assemblies.
Petróleo e gás
Deep-hole drilling components, valve springs, and logging cables exposed to H2S environments.
Marine Engineering
Components submerged in seawater under high stress where crevice corrosion must be zero.
Need High-Strength MP35N?
We stock MP35N wire, bar, and rod in various tempers (Annealed to Spring Temper). Medical grade certification (ASTM F562) available.
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