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WRC 342

Stainless Steel Weld Metal: Prediction Of Ferrite Content

Bulletin / Circular by Welding Research Council, Inc. , 1989

C. N. McCowan, T. A. Siewert, D. L. Olson

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Full Description

A new diagram to predict the ferrite number (FN) in stainless steel welds is proposed. The diagram has a range from 0 to 100 FN, and the primary solidification zones are indicated. This diagram more accurately predicts the ferrite content for welds having FN less than 18, than existing diagrams. It corrects overestimates made by the DeLong diagram for AWS type 309 stainless steel and it predicts the FN of duplex stainless steel more accurately than the Schaeffler diagram. Weld compositions used to develop the diagram ranged (in wt.%) from 0.01 to 0.2 C, 0.4 to 12 Mn, 0.1 to 1.3 Si, 15 to 32 Cr, 5 to 25 Ni, 0 to 7 Mo, 0.02 to 0.3 N, 0 to 0.9 Nb, and 0 to 0.1 Ti. The database contained over 950 welds and is included in Appendix I and II to this report.
 

Product Details

Published:
1989
Number of Pages:
42
File Size:
1 file , 3.2 MB
Note:
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