High-nitrogen ferritic heat-resisting steel with high niobium co

Details High-nitrogen ferritic heat-resisting steel with high niobium co High-nitrogen ferritic heat-resisting steel with high niobium co

1992-04-28

1993-10-19

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420 69, 164 661, 164 681, C22C 3822, C22C 3824, B22D 100

Patent

active

052543072

ABSTRACT:
A high-nitrogen ferritic heat-resisting steel with high niobium content comprises, in weight per cent, 0.01-0.30% C, 0.02-0.80% Si, 0.20-1.00% Mn, 8.00-13.00% Cr, 0.005-1.00% Mo, 0.20-1.50% W, 0.05-1.00% V, over 0.12 up to 2.00% Nb and 0.10-0.50%N, the balance being Fe and unavoidable impurities. A method of producing the steel comprises melting and equilibrating the steel components in an atmosphere of a mixed gas of a prescribed nitrogen partial pressure or nitrogen gas and thereafter casting or solidifying the resulting melt in an atmosphere controlled to have a total pressure of not less than 2.5 bar and a nitrogen partial pressure of not less than 1.0 bar, with the relationship between the nitrogen partial pressure p and the total pressure P being

REFERENCES:
patent: 2848323 (1958-08-01), Harris et al.

Affiliated with

Also associated with

Rating

High-nitrogen ferritic heat-resisting steel with high niobium co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-nitrogen ferritic heat-resisting steel with high niobium co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-nitrogen ferritic heat-resisting steel with high niobium co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1349795