Payment & Shipping Terms:
|Equal Grades:||Elgiloy,Phynox,NAS604PH||Forms Of Supply:||Strip, Wire, Rod, Forging|
|Spec:||YB/T 5253-2011||UNS No.:||R30003|
|Product Name:||Superelastic Alloy||Package:||Playwoode Case|
High Hardness Superelastic Alloy,
3J21 Super Elastic Alloy,
High Strength Superelastic Alloy
High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod
3J21 is a deformation reinforced cobalt-based alloy, with good plastic properties and easy to process in the solid solution state. After high strain rate cold processing and time limit treatment, 3J21 can obtain high mechanical and elastic properties, but after the solid solution treatment, the alloy can no longer be strengthened by time limit treatment.
3J21 has high strength, high hardness,high elasticity limit, high energy storage ratio, high fatigue strength, small elasticity lag and rear effect, non magnetic, good wear resistance, seismic and shock resistance, excellent corrosion resistance, can work at high temperature 400 °C and also can work normally at low temperature.
Components for watches
Chemical compositions (% in weight)
3J21 heat treatment
Elastic element: 30%~70% cold strain + 370 °C~480 °C, 2~4 hours, air cold
Axis tip: 90% cold strain + 500 °C~550 °C, 4 hours, air cold
Oxid film appears on the surface of the alloy after heat treatment, and that can be removed by alkali immersion-acid washing method.
The Equal grades
Elgiloy, Phynox,NAS604PH,UNS R30003(ASTM F1058),W.Nr 2.4711
The available forms of 3J21
Usually, 3J21 is supplied in cold rolled strip and cold pulled wire form, and also can be provided upon customer request in rods and forgings
Rod diameter 20-100mm
The leading time for wires and rods is around 30days.
Contact Person: Allen Sun