Ductile corrosion resistant alloy

Details Ductile corrosion resistant alloy Ductile corrosion resistant alloy

C - Chemistry, Metallurgy

22

C

75/16

C22C 19/05 (2006.01) C22C 30/00 (2006.01)

Patent

CA 1079546

Abstract of the Disclosure A highly corrosion resistant, durable, strong, hardenable and relatively inexpensive nickel based, high chromium, high iron, austenitic alloy has greatly improved malleability and hot workability. The alloy contains approximately the quantities indicated: Ni - 30 -48% (preferably to 38%, to balance to 100%) Cr - 30 -35% Co - 4 -7.5% Fe - 3 -25% (but preferably 10-25%) Mn - 1 -3.5% Cu - 2.5 -8% C - to .25% and has a content of Mo from about 0 to 3%, a content of Si from about 0.3% and wherein the sum of the Mo and Si content is less than about 4%. Boron may be added to increase.the workability and forging properties of the alloy. The pre- ferred content of approximately 3% Si and approximately 1% molybdenum results in an optimum balance of the age hardenable workability, and corrosion resistant properties. All percentaoes herein are by weight.

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