Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Reexamination Certificate
2008-03-11
2008-03-11
King, Roy (Department: 1793)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
C419S036000, C419S039000, C075S337000
Reexamination Certificate
active
11316869
ABSTRACT:
The invention concerns a new pre alloyed steel powder comprising in addition to iron and inevitable impurities, by wt %, 1.3-1.7% by weight of Cr, 0.15-0.3% by weight of Mo, 0.09-0.3% by weight of Mn, not larger than 0.01 by weight of C, not larger than 0.25% of O.
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Berg Sigurd
Engström Ulf
Buchanan & Ingersoll & Rooney PC
Hëganäs AB
King Roy
Mai Ngoclan T.
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