Cobalt-chromium alloy is a cobalt and chromium alloy as a main component. Its corrosion resistance and excellent mechanical properties than gold alloy or stainless. Depending on the clinical requirements, cobalt-chromium alloy composition is not the same, generally can be divided into the soft cobalt chromium alloy, the hard cobalt chromium alloy and hard cobalt chromium alloy.

1) Performance

① good mechanical properties.

② the proportion of small, light weight.

③ a high melting point, about 1250 to 1450 ° C.

④ chemical stability, corrosion resistance.

⑤ non-irritating to the body, can be used as planting material.

⑥ casting large contraction.

2) purposes:

    Soft cobalt-chromium alloy suitable for the production of various types of fixed prosthesis; hard cobalt-chromium alloy suitable for making snap ring denture base and increased occlusal occlusal pads, etc.; the hard cobalt chromium alloy suitable for removable partial dentures bracket the whole cast, and can also be used as planting material. Cobalt-chromium alloy commonly used for dental prosthetic material.

3) usage:

    Cobalt-chromium alloy casting and polishing process is similar to the 18-8 chromium-nickel stainless steel.