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Austenitic Ni--Fe base weld material |
| T967001 |
Austenitic Ni--Fe base weld material
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| Patent Drawings: | |
| Inventor: |
Brown, et al. |
| Date Issued: |
February 7, 1978 |
| Application: |
05/791,786 |
| Filed: |
April 28, 1977 |
| Inventors: |
Brown; Robert S. (Leesport, PA)
Koch; Joseph B. (Sinking Spring, PA)
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| Assignee: |
Carpenter Technology Corporation (Reading, PA) |
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| U.S. Class: |
219/146.23; 228/262.41; 420/582 |
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| Abstract: |
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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