C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/10
C21D 7/13 (2006.01) B22D 11/00 (2006.01) C21D 8/02 (2006.01) C22C 38/06 (2006.01)
Patent
CA 1058491
ABSTRACT OF THE DISCLOSURE A process for producing a steel having excellent strength and toughness, which comprises continuously casting a molten steel containing 0.01 - 0.10% Al and 0.002 - 0.009% N with an average cooling rate of not lower than 3°C/min. down to 500°C to obtain a steel slab heating the steel slab to a temper- ature ranging from 900 to 1150°C and rolling the steel slab.
240989
Katoh Hiroshi
Matsumura Yoshikazu
Nakajima Koe
Onoe Yasumitsu
Sekino Shozo
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