MP35N

MP35N Nickel Cobalt Alloy

MP35N®

UNS R30035 | Ni-Co-Cr-Mo Alloy

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.

  • Общие формы: Round Bar, Wire, Tubing, Sheet.
  • Ключевая особенность: Ultra-high strength + Biocompatibility.
  • Коррозия: Excellent resistance to crevice corrosion and stress cracking.
  • Закаливание: Work-hardened and aged to achieve max strength.
Why Choose MP35N?

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.

Сверхвысокая прочность

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.

Химический состав (%)
Элемент Содержание (%)
Никель (Ni) 33.0 - 37.0
Кобальт (Co) 33.0 - 37.0
Хром (Cr) 19.0 - 21.0
Молибден (Mo) 9.0 - 10.5
Титан (Ti) 1.0 макс.
Железо (Fe) 1.0 макс.

*Note: The balanced Nickel-Cobalt base provides the unique property mix.

Стандартные спецификации
Форма продукта Стандарты (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
Нефть и газ NACE MR0175 (Sour Service)
Mechanical Properties (Typical)
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.

Типовые применения

Medical Devices

Pacing leads, stylets, catheters, and orthopedic implants requiring high fatigue life and bio-inertness.

Аэрокосмический крепеж

High-strength bolts and screws (Multiphase®) used in critical airframe assemblies.

Нефть и газ

Deep-hole drilling components, valve springs, and logging cables exposed to H2S environments.

Морская техника

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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