Cr, Ni, Mo and Co alloy for use in medical devices
One aspect generally relates to a Cr, Ni, Mo and Co alloy, with tightly controlled levels of impurities. One aspect relates to an alloy including about 10 to about 30 weight % Cr, about 20 to about 50 weight % Ni, about 2 to about 20 weight % Mo, about 10 to about 50 weight % Co, and less than about 0.01 weight % Al, wherein each weight % is based on the total weight of the alloy.
1. An alloy comprising:
about 10 to about 30 weight % Cr;
about 20 to about 50 weight % Ni;
about 2 to about 20 weight % Mo;
about 10 to about 50 weight % Co; and
less than about 0.01 weight % Al;
wherein each weight % is based on the total weight of the alloy.
2. The alloy of claim 1 further comprising less than about 0.005 weight % Mg, based on the total weight of the alloy.
3. The alloy of claim 1 further comprising less than about 0.005 weight % Ca, based on the total weight of the alloy.
4. The alloy of claim 1 further comprising less than about 0.005 weight % Ce, based on the total weight of the alloy.
5. The alloy of claim 1 further comprising less than about 0.1 weight % Ti, based on the total weight of the alloy.
6. The alloy of claim 1 further comprising from about 0.0001 to about 1 weight % Fe.
7. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of C in the alloy is less than about 0.1 weight %;
b) the content of B in the alloy is less than about 0.01 weight %;
c) the content of P in the alloy is less than about 0.01 weight %;
d) the content of S in the alloy is less than about 0.005 weight %;
wherein each weight % is based on the total weight of the alloy.
8. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of Mn in the alloy is less than about 0.05 weight %;
b) the content of Si in the alloy is less than about 0.05 weight %;
wherein each weight % is based on the total weight of the alloy.
9. The alloy of claim 1 , wherein at least one of the following is satisfied:
a) the content of O in the alloy is in the range from about 0.0001 to about 0.05 weight %;
b) the content of N in the alloy is in the range from about 0.0001 to about 0.01 weight %;
wherein each weight % is based on the total weight of the alloy.
10. One of an electrical wire, a wire of a medical device, and a wire of a pacemaker device, comprising an alloy according to claim 1 .