This Cobalt-Chromium-Nickel alloy gives a combination of high strength, ductility and good mechanical properties and is age hardenable. Phynox† also has excellent fatigue life, corrosion resistance in numerous environments and is non-magnetic.
Use where a high resistance to corrosion and / or low relaxation at temperatures up to 380oC (715oF) are required. This alloy is used in medical devices, dental products, surgical implants and orthopedics.
Phynox is also known as Elgiloy, Conichrome and Alloy 3J21.
| Chemical Composition | Specifications | Designations | Key Features | Typical Applications | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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AMS 5833 AMS 5834 AMS 5876 ASTM F1058 ISO 5832-7 ISO 15156-3 (NACE MR 0175) |
W.Nr 2.4711 UNS R30003 UNS R30008 AWS 100 |
Combination of high strength, ductility and good mechanical properties at ambient temperatures Excellent fatigue life Excellent corrosion resistance in numerous environments Non magnetic Age hardenable (Spring Temper only) Good for sea water applications |
Springs Seal components Medical devices Components for watches Aerospace applications Petro-chemical applications Marine engineering |
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| Density | 8.3 g/cm³ | 0.300 lb/in³ |
| Melting Point | 1427 °C | 2600 °F |
| Coefficient of Expansion | 12.5 μm/m °C (20 – 100°C) | 7.0 x 10-6 in/in °F (70 – 212°F) |
| Modulus of Rigidity | 77 kN/mm² | 11168 ksi |
| Modulus of Elasticity | 203.4 kN/mm² | 29501 ksi |
| Heat Treatment of Finished Parts | |||||
|---|---|---|---|---|---|
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Annealed | – | – | – | – | – |
| Spring Temper | Age Harden | 520 | 970 | 5 | Air |
| Properties | ||||
|---|---|---|---|---|
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm² | ksi | °C | °F | |
| Annealed | < 1100 | < 160 | -185 to +450 | -300 to +840 |
| Spring Temper | 1400 – 1900 | 203 – 276 | -185 to +450 | -300 to +840 |
| Spring Temper + Aged | 1900 – 2200 | 276 – 319 | -185 to +450 | -300 to +840 |
The above tensile strength ranges are typical. If you require different please ask.
† Trade Name registered to Aperam Alloys Imphy
