Patent ID: 7326472
Filing Date: 2008-02-05
Classification: A63B,Y10T

Abstract:
1. A structure comprising: a stainless steel member; and a tungsten alloy member, wherein the stainless steel member and the tungsten alloy member are welded to each other, wherein the tungsten alloy member includes the following compositions based on the total weight of the tungsten alloy member: tungsten in a range of 28 wt %-32 wt %; iron in a range of 45 wt %-49 wt %; nickel in a range of 15 wt %-17 wt %; and copper in a range of 1 wt %-3 wt %; and wherein the sum of amount of tungsten, iron, nickel, and copper in the tungsten alloy member is in a range of 93 wt % to 98 wt %.