06630103 is referenced by 13 patents and cites 3 patents.

A precipitation hardenable stainless steel having the following weight percent composition is disclosed.

C

0.030 max.

Mn

 0.5 max.

Si

 0.5 max.

P

0.040 max.

S

0.025 max.

Cr

 9-13

Ni

7-9

Mo

3-6

Cu

 0.75 max.

Co

 5-11

Ti

 1.0 max.

Al

1.0-1.5

Nb

 1.0 max.

B

0.010 max.

N

0.030 max.

O

0.020 max.

The balance of the alloy is essentially iron and the usual impurities. One or more rare earth metals or calcium may be included in the alloy for removing and/or stabilizing phosphorus and sulfur. The alloy provides a unique combination of strength, toughness, and ductility. In accordance with another aspect of the present invention, there is described a useful article such as an aircraft structural component or a golf club head that is formed, at least in part, from the aforesaid alloy. In accordance with a further aspect of the present invention, there is described an elongated strip formed from the aforesaid and a method of making such strip material.

Title
Ultra-high-strength precipitation-hardenable stainless steel and strip made therefrom
Application Number
10/106661
Publication Number
6630103 (B2)
Application Date
March 26, 2002
Publication Date
October 7, 2003
Inventor
Theodore Kosa
Reading
PA, US
James W Martin
Sinking Spring
PA, US
Agent
Dann Dorfman Herrell and Skillman P C
US
Assignee
CRS Holding
DE, US
IPC
C22C 38/52
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