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MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /

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Featured Products

MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
Kovar Capillary Tube (4J29) / K94610
Alloy 46 / 1J46 / Fe-46Ni / UNS K94600
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MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
Nimonic 80A / UNS N07080 / W. Nr 2.4952
Nimonic 263 / UNS N07263 / W.Nr: 2.4650 / Age-Hardenable Nickel-Cobalt-Chromium-Molyb- Denum Alloy 263 / Haynes C263
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MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
Waspaloy alloy bar N07001/GH4738/ Waspaloy Strip/Wasaploy pipe
MP35N Bar/ AMS5844 / High Tensile Strength Cobalt Alloy MP35N / R30035 Wire/
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MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
Inconel 718 / Nickel Alloy 718 / UNS: N07718 / W. Nr: 2.4668/NiCr19Fe19Nb5Mo3 / NA 51 / NC19FeNb
InconelX-750 / N07750 / W.Nr.2.4669 / NiCr15Fe7TiAl / NC15TNbA / GH4145
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MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /
Alloy L605 / Haynes 25 / UNS R30605 / W.Nr 2.4964 / Cobalt L605 / GH5605
Incoloy A-286 / UNS S66286 / W.Nr 1.4980
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Short Description:

MP35N R30035/W.Nr. 2.4999 alloy steel is a nickel, chromium, cobalt alloy. This grade is non-magnetic and possesses an ultra-high tensile strength, and provides for good ductility.  This alloy has a maximum 750 degree F temperature capability.

We can produce and supply Mp35N in the shape of bar, rod, wire,and strip.

Avaliabe Products:

Round Bar   Wire    Strip


Product Description

Understanding MP35N Wire

MP35N is a non-magnetic, age-hardening alloy that derives its name from its primary components; “MP” stands for multiphase, indicating its complex microstructure. The alloy is mainly used in wire form due to its excellent formability, allowing it to be easily shaped, coiled, or drawn into fine wires of various diameters. This makes MP35N wire a versatile material suitable for a wide range of applications.

Mechanical Properties

The mechanical properties of MP35N wire are among its most impressive features. With a tensile strength ranging from 260 ksi (1,790 MPa) to 320 ksi (2,210 MPa) and a high yield strength, this alloy exhibits a superior strength-to-weight ratio, making it suitable for applications where weight reduction is critical. Additionally, MP35N’s unique combination of elements contributes to its high fatigue resistance, ensuring its performance remains uncompromised even under cyclic loading.

Corrosion Resistance

MP35N wire is highly resistant to corrosion, which is one of the key reasons for its popularity in various industries. The alloy’s resistance to harsh environments, including seawater, acids, and alkaline solutions, makes it suitable for applications where corrosion can lead to significant degradation of materials over time.


MP35N’s biocompatibility is an essential aspect that expands its application in the medical field. This alloy is widely used in the manufacturing of medical devices and components, including surgical tools, catheters, and orthopedic implants. Its biocompatibility ensures that it can safely interact with the human body without causing adverse reactions.


MP35N wire finds extensive use in a variety of industries due to its remarkable properties:

  • a. Aerospace and Defense: MP35N wire is employed in critical aerospace and defense applications, including springs, fasteners, and electrical connectors, where high strength and resistance to harsh environments are required.
  • b. Medical and Dental: The alloy’s biocompatibility and corrosion resistance make it suitable for medical and dental applications, such as orthopedic implants, dental wires, and surgical instruments.
  • c. Oil and Gas: MP35N wire is used in the oil and gas industry for downhole tools, control lines, and valves, where its strength and corrosion resistance are advantageous in demanding environments.
  • d. Electronics: The alloy’s non-magnetic properties and high electrical conductivity make it useful in electronic connectors and components.

Advantages of MP35N Wire

  • High Strength and Toughness: MP35N wire’s exceptional mechanical properties ensure reliability and longevity in challenging applications.
  • Corrosion Resistance: Its resistance to various corrosive environments enhances the material’s durability and performance.
  • Biocompatibility: MP35N’s biocompatibility allows for its use in medical implants and devices, improving patient outcomes.

MP35N wire stands as a versatile and high-performance material with a wide range of applications across multiple industries. Its unique combination of strength, corrosion resistance, and biocompatibility makes it a favored choice in aerospace, medical, oil and gas, and electronics applications, among others. As technology continues to advance, MP35N wire will likely maintain its significance in solving engineering challenges and pushing the boundaries of innovation in various fields.


  • Cold working will achieve higher tensile strengths.
  • Aging Heat treatment will result in the highest strength available for miniature stainless steel tubing.
  • Many combinations of properties available based on processing method to suit many applications.
  • Excellent corrosion resistance–extensive use in stents and implants

MP35N Chemical Composition

% C P Si Ni Co Mn S Cr Mo Ti Fe
Min 33 bal 19 9
Max 0.025 0.015 0.15 37 bal 0.15 0.01 21 10.5 1 1

MP35N Physical Properties

Density Melting Point Coefficient of Expansion Modulus of Rigidity Modulus of Elasticity
8.43 g/cm³ 1440 °C 12.8 μm/m °C (20 – 100 °C) 80.7 kN/mm² 234 kN/mm²
0.304 lb/in³ 2625 °F 7.1 x 10-6 in/in °F (70 – 212 °F) 11705 ksi 33939 ksi

MP35N Mechanical Properties (Minimum value at 20℃)

Property Tensile Rm Yield Strength at 0.2% Offset Elongation in 4D R.p. 0.2% Yield
Value 260ksi (1793 MPa) 230 ksi (1586 MPa) 8% 35%
  • Bars & Rods & Foring Ring /Flanges
  • Sheet & Plate
  • Strip & Coil
  • Welding Wire &Spring wire
  • Seamless Tube & Welded Pipe

»Round Bar & Square Bar & Hexagon Bar       

● Diameter : φ8~φ300mm   Length:10mm-6000mm

● Hot forging, Hot Rolling, Cold Drawing

● Bright Surface, Polished Surface, Black Surface

»Tube & Pipe:Seamless Tube& Welded Pipe

● Cold Drawing Seamless Pipe: φ1.0~φ220mm

● Hot Extrusion pipe: φ50~φ250mm

● Others : U Blend Tube and Elbow

»Hot Rolled Plate & Cold Rolled Sheet 

● Cold Rolling Sheet Thickness: ≦2.0mm      Width:≦1500m

● Hot rolling Plate Thickness: ≧4.0mm         Width: ≦2500m

»Strip & Tape Ribbon

● Thickness: ≧ 0.01mm     Width: 15mm-300mm

● Cold rolling BA Strip, Hard & Soft Condition

»Straight Length Wire & Spool Wire 

● Welding Wire: φ 0.1mm~6.0mm      Cut length Rod: φ1.0~φ8.0mm

● Package : 5-25kg/Spool or Box

MP35N / R30035 / High Tensile Strength Cobalt Alloy MP35N Bar / MP35N Wire /

MP35N ApplicationsI

  • Fasteners
  • Springs
  • Nonmagnetic electrical components
  • Medical instruments
  • Medical and dental devices
  • Seawater
  • Oil and gas well
  • Chemical applications
  • Food processing environments

MP35N wire is a cutting-edge alloy wire that has gained significant recognition for its exceptional mechanical properties, corrosion resistance, and biocompatibility. Composed of nickel, cobalt, chromium, and molybdenum, MP35N offers unparalleled strength and durability, making it an ideal choice for a wide range of demanding applications. This article provides a comprehensive overview of MP35N wire, highlighting its composition, key characteristics, and diverse applications across industries such as medical, aerospace, and oil and gas. With its remarkable combination of strength, corrosion resistance, and flexibility, MP35N wire continues to revolutionize various sectors, pushing the boundaries of what is achievable in critical environments.

Composition and Properties:

MP35N wire is primarily composed of approximately 35% cobalt, 35% nickel, 20% chromium, and 10% molybdenum. This unique blend of elements provides the alloy with exceptional mechanical properties, such as high tensile strength and excellent resistance to corrosion and wear.

One of the standout features of MP35N wire is its remarkable strength. With a tensile strength significantly higher than other commonly used alloys, MP35N wire can withstand heavy loads and maintain structural integrity in extreme conditions. This strength is particularly crucial in applications where reliability and performance are paramount.

In addition to its mechanical strength, MP35N wire exhibits outstanding corrosion resistance. It is highly resistant to various corrosive substances, including acids, alkalis, and saltwater. This corrosion resistance allows MP35N wire to thrive in aggressive environments, making it a preferred choice for applications where protection against corrosion is essential.

Moreover, MP35N wire possesses excellent biocompatibility, making it suitable for medical applications. It is widely used in surgical implants, orthopedic devices, cardiovascular components, and dental braces. Its biocompatible nature ensures compatibility with the human body, minimizing the risk of adverse reactions or complications.

Considerations When Using MP35N Wire

While MP35N wire offers numerous advantages, there are several important considerations to keep in mind when working with this material:

1. Machinability

MP35N wire is known for its machinability, but it can be more challenging to machine than some common materials. Proper machining techniques and tools are essential to achieving precise results.

2. Weldability

Welding MP35N wire can be complex due to its unique composition and the need to maintain its properties. Expertise and proper welding procedures are crucial to prevent brittleness and ensure the weld’s integrity.

3. Surface Finish

Surface finishes and coatings can be applied to MP35N wire to enhance its corrosion resistance and appearance. The selection of appropriate surface treatments should be made carefully based on the intended application.

4. Regulatory Compliance

In certain applications, especially in the medical and aerospace industries, regulatory compliance is critical. Ensure that the use of MP35N wire meets industry-specific standards and certifications.

Future Trends and Innovations

MP35N wire continues to evolve and adapt to emerging trends and technological advancements. Here are some areas of interest and ongoing innovation:

1. Research and Development

Ongoing research is dedicated to uncovering new possibilities and enhancements in the properties of MP35N wire. Researchers are exploring ways to further optimize its performance and expand its range of applications.

2. Sustainability Initiatives

As sustainability becomes an increasingly important consideration across industries, there is a growing focus on developing more environmentally friendly processes and recycling methods for materials like MP35N wire.

MP35N wire has emerged as a high-performance solution for a wide range of demanding applications. Its exceptional mechanical properties, corrosion resistance, and biocompatibility have positioned it as a material of choice in industries such as medical, aerospace, oil and gas, and more. With its remarkable strength, flexibility, and ability to withstand harsh conditions, MP35N wire continues to push the boundaries of what is achievable, enabling innovation and reliability in critical environments. As technology advances, the demand for MP35N wire is expected to grow, further solidifying its position as a preferred material for applications that demand excellence in performance, durability, and corrosion resistance.

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