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Cobalt base alloy Phynox alloy UNS R30003, R30008 for medical

Categories Special Alloys For Medical
Brand Name: CMMC
Model Number: As per specification and drawing
Certification: ISO9001 etc.
Place of Origin: CMMC in CHINA
MOQ: Negotiable
Price: Negotiable
Payment Terms: D/P, L/C, T/T
Supply Ability: 30 metric tons per month
Delivery Time: 60-90 days
Packaging Details: Water prevent, seaworthy transport, mill's export standard packing
Material: UNS R30003, an austenitic cobalt based alloy
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    Cobalt base alloy Phynox alloy UNS R30003, R30008 for medical

    Cobalt base alloy Phynox alloy (UNS R30003, R30008) wire, strip, tube and bar for surgical implant


    1 PRODUCT

    Solution heat treated cold drawn and aged cobalt base alloy Phynox alloy.

    Product forms available as wire, strip, tube, bar and rod etc.


    2 EQUIVALENT DESIGNATION

    UNS R30003, R30008, AWS 100, W.NR 2.4711, Elgiloy, Conichrome, K13C20N16Fe15D07(AFNOR)


    3 OVERVIEW

    Phynox is an austenitic cobalt based alloy strengthened by cold work and capable of additional hardening by aging at a moderate temperature (around 500°C).

    In the fully hardened condition, its elastic modulus is around 210000 MPa, with UTS levels up to 2500 MPa on cold rolled strip.

    In addition to its very high yield strength, Phynox offers a range of physical chemical and technological properties that make it appropriate for a wide variety of applications.

    The most important complementary properties are

    ● Exceptional resistance to corrosion, stress corrosion cracking and hydrogen embtittlement.

    ● Good fatigue strength.

    ● The absence of aging in service.

    ● The absence of magnetism.

    ● Ability to be used over a wide range of temperatures, from liquid helium to about 500て

    ● Perfect passivity in contact with human tissues.

    ● The possibility of increasing the strength of parts by age hardening after forming, leading to strength levels unattainable with other materials

    ● The absence of brittleness at low temperatures (no transition temperature).

    ● A maximum service temperature about 100oC higher than for stainless steels.

    ● A corrosion resistance vastly superior to that of molybdenum-containing stainless steels

    ● A very high yield strength that combined with a high elastic modulus in both tension and torsion, enables the storage and rapid release of large amounts of elastic energy.


    4 APPLICATION

    Phynox often provides the best solution whenever high mechanical performance is required under severely corrosive service conditions.

    Phynox finds numerous applications in

    Spring for watch motors

    Shaped springs(helical etc)

    Flexible coupling

    Electrical and electronic apparatus

    Petrochemical

    Oil-gas

    Aeronautical engineering

    Automotive injection system

    Various diaphragms

    Naval equipment

    Weaponry

    Prostheses for osteosynthesis

    Pacemaker electrodes

    Special collars for missiles

    Automotive ABS systems

    Surgical implants and medical instruments

    Printer springs


    5 CHEMICAL COMPOSITION (wt%):

    MaterialFeNiCrCoMoCMnSiPSBe
    PhynoxBal.15.0-17.019.0-21.039.0-41.06.0-8.0
    R30003Bal.14.0-16.019.0-21.039.0-41.06.0-8.0≤0.151.5-2.5≤1.20≤0.015≤0.015≤0.10
    R30008Bal.15.0-18.018.5-21.539.0-42.06.0-8.0≤0.151.0-2.0≤1.20≤0.015≤0.015≤0.001

    6 PHYSICAL PROPERTY

    Density: 8.3 g/cm3 (0.300lb/in3)

    Melting range: 1450-1460°C (2642-2660°F)

    Modulus of rigidity: 77 kN/mm2(11168ksi)

    Elasticity modulus: 203.4 kN/mm2 (29501 ksi)

    Electrical resistivity at 20°C: 95.0 uΩ.cm

    Variation of resistivity with temperature between 0 and 300°C: annealed condition: 4x 10-4 uΩ.cm°C-1

    Variation of resistivity with temperature between 0 and 300°C: cold work condition: 4.3x 10-4 uΩ.cm°C-1

    Specific Heat at 68-212˚F (20-100˚C) : 450 J.kg-1.°C-1

    Thermal Conductivity: 12.5W.m-1.°C-1

    Magnetism: Non-magnetic

    Coefficient of thermal expansion at 70-212˚F (20-100˚C) : 12.5 um/m°C (7x106 in/in°F)

    Young’s modulus between 0-50°C: -400x10-6 MPa.°C-1


    7 CORROSION RESISTANCE

    Phynox is not sensitive to corrosion by organic acids and shows perfect resistance in salt spray tests. Its behaviour in inorganic acids is greatly superior to that of the best stainless steels.

    Furthermore, because of its remarkable passivity in contact with human tissues, Phynox is used for artificial bone implants (cast and wrought prostheses).


    8 MECHANICAL PROPERTIES

    Typial mechanical properties

    ConditionApproximate tensile strengthApproximate working temperature
    N/mm²ksi°C°F
    Annealed800 – 1000116 – 145-185 / +450-300 / +840
    Spring temper1400 – 1900203 – 276-185 / +450-300 / +840
    Spring tempered + aged1900 – 2200276 – 319-185 / +450-300 / +840

    Annealed condition

    Softening is achieved by annealing at 1050°C for at least 30 minutes followed by rapid cooling, for example in air. The typical mechanical properties are given in the table below.

    PropertyUnitValue
    Vickers hardnessHV240
    0.2% proof stressMPa500
    Ultimate tensile stressMPa900
    Elongation (50mm)%50

    9 HEAT TREATMENT

    Annealing

    Phynox cannot be hardened under annealing conditions. Softening is achieved by annealing at 1050°C for at least 30 minutes followed by rapid cooling, for example in air.

    Spring temper

    Store for 5 hours at 520°C (970°F) and use air cooling to eliminate stress

    Aging

    The standard final aging treatment is 3 hours at 520°C.

    Heat treatment in air does not modify the mechanical properties, but impairs the appearance, the metal taking on a pale yellow tinge. Treatments under a vacuum of the order of 10-5 torr or in a neutral atmosphere (e.g, argon) are recommended.

    Some atmospheres that are considered to be inert based only on the absence of visible colouring after heat treatment must be used with care. In particular, this is the case for hydrogen atmospheres, which are not recommended, although in certain cases, the properties can be restored by subsequent baking.


    10 MACHINING AND FORMING

    The mechanical properties in the annealed delivery condition are similar to those of other austenitic alloys.

    Machining should preferably be performed with carbide tools, since Phynox work hardens strongly. A moderate cutting speed should be used, with large rake angles.

    Many common machining and forming operations can be carried out in the cold worked condition. In particular, the simple winding of a spring can be carried out for strain levels of up to 85%. For more complex shaping operations, moderate cold reductions should be chosen.

    Phynox can be electrochemically machined, certain companies being specialized in this technique.


    11 STANDARD SPECIFICATION

    AMS 5833

    AMS 5834

    AMS 5875

    AMS 5876

    ASTM F1058

    ISO 5832-7

    NACE MR0175

    ISO15156-3


    12 COMPETITIVE ADVANTAGE

    (1)More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
    (2) 6 state key laboratories and calibration center.
    (3) Innovative and patent technologies.

    (4) High performances


    13 BUSINESS TERM

    Minimum Order QuantityNegotiable
    PriceNegotiable
    Packaging DetailsWater prevent, seaworthy transport, mill's export standard packing
    MarkAs per order
    Delivery Time60-90 days
    Payment TermsT/T, L/C at sight, D/P
    Supply Ability30 metric tons per month

    Quality Cobalt base alloy Phynox alloy UNS R30003, R30008 for medical for sale
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