Austenitic Ni--Fe base weld material
weld-filler material particularly useful in providing enhanced freedom from weld cracking in fully austenitic Fe--Ni--Cr--Mo--Cu material in which the elements P, Cb, Ce+La, C, Si, S, N and O are controlled to low levels and in which the level of manganese is increased to at least 1% and preferably to at least 1.5%. The weld-filler material in weight percent contains:Carbon -- 0.035 Max.Manganese -- 1-4.0Silicon -- 0.20 Max.Phosphorus -- 0.020 Max.Sulfur -- 0.005 Max.Chromium -- 19.0 -26.0Nickel -- 32.5-38Molybdenum -- 2-9Copper -- 3.0-4.0Columbium -- 0.35 Max.Cerium -- 0.01 Max.Boron -- 0.0035 Max.the balance being iron and in which cerium includes cerium plus lanthanum or misch metal.
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Description
Patent History
Patent number: T967001
Type: Grant
Filed: Apr 28, 1977
Date of Patent: Feb 7, 1978
Assignee: Carpenter Technology Corporation (Reading, PA)
Inventors: Robert S. Brown (Leesport, PA), Joseph B. Koch (Sinking Spring, PA)
Application Number: 5/791,786
Type: Grant
Filed: Apr 28, 1977
Date of Patent: Feb 7, 1978
Assignee: Carpenter Technology Corporation (Reading, PA)
Inventors: Robert S. Brown (Leesport, PA), Joseph B. Koch (Sinking Spring, PA)
Application Number: 5/791,786
Classifications
Current U.S. Class:
75/122;
75/134C;
75/134F;
219/14623;
228/263
International Classification: C22C 3002;
International Classification: C22C 3002;
