CoNiChrome
Conichrome Alloy is a non-magnetic, austenitic alloy composed primarily of nickel, cobalt, chromium, and molybdenum. It offers a rare combination of exceptional strength, ductility, corrosion resistance, and superior fatigue performance—making it ideal for demanding, high-performance applications.
Produced through advanced melting and remelting processes, Conichrome achieves excellent purity and structural consistency. It is commonly used in industries requiring high strength and resistance to corrosive environments, including medical, energy, and chemical processing.
The alloy is annealed at 2000°F ±25°F (1093°C ±14°C), followed by controlled cooling to achieve a typical tensile strength of 125 KSI. When cold worked, Conichrome can be aged at 900°F–950°F (482°C–510°C) for enhanced mechanical properties.
Conichrome also demonstrates outstanding resistance to sulfide stress corrosion cracking and is approved for use under NACE MR0175 standards in a wide range of harsh production environments. Its long-standing use in medical implants reflects its biocompatibility and resistance to body fluids and tissue contact.
Conichrome Alloy can be cold formed or drawn, though it is stiffer than conventional stainless steels due to its high strength and rapid work hardening. Post-forming annealing is recommended when annealed properties are required in small sections.
CoNiChrome Inventory Size Ranges
Not finding what you are looking for? Connect with our sourcing group at sourcing@upmet.com
CONICHROME BIO-COMPATIBILITY SUMMARY
Conichrome Alloy has a proven history of use in medical implants, where it is utilized in applications involving both soft tissue and bone contact. Its widespread acceptance in the medical industry is well documented, and biocompatibility data is readily available and recognized within the healthcare industry.
Standard Inventory Specifications
- UNS R30003
- UNS R30008
- ASTM F1058 (Grade 1 or Grade 2)
Common Applications of CoNiChrome
- Suture wires
- Surgical clips
- Pacemaker leads
- Stents
- Vena cava filters
- Orthopedic nails
- Precision springs
- Torsion bars
- Seals
Chemical Composition
Element | Percent by Weight | |
---|---|---|
C | Carbon | 0.15% max |
Co | Cobalt | 39.0% - 42.0% |
Cr | Chromium | 18.5% - 21.5% |
P | Phosphorus | 0.015% max |
Be | Beryllium | 0.001% max |
Mo | Molybdenum | 6.0% - 8.0% |
Si | Silicon | 1.20% max |
S | Sulfur | 0.015% max |
Fe | Iron | Balance |
Ni | Nickel | 14.0% - 18.0% |
Mn | Manganese | 1.0% - 2.5% max |
Physical Properties of CoNiChrome
Density | 0.300 lb/in³ | 8304 kg/m³ |
Magnetic Properties | This material is non-magnetic in its annealed, cold worked, and aged conditions. |
Mechanical Properties of CoNiChrome
Condition |
0.2% Yield Strength |
Ultimate Tensile Strength |
% Elongation in 4D |
% Reduction of Area |
Orientation |
|
---|---|---|---|---|---|---|
Annealed |
52 ksi 359 MPa |
124 ksi 855 MPa |
80 |
80 |
Long |
|
Cold Worked |
100 - 250 ksi 690 - 1724 MPa |
150 - 280 ksi 1034 - 1930 MPa |
|
|
Long |
|
Cold Worked + Aged |
|
250 - 300+ ksi 1724 - 2068+ MPa |
|
|
Long |
*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.