Hot-rolled low-carbon steel strip with an excellent press-workab

Details Hot-rolled low-carbon steel strip with an excellent press-workab Hot-rolled low-carbon steel strip with an excellent press-workab

1974-11-13

1977-01-04

Stallard, W.

Metal treatment

Compositions

Heat treating

75123B, 148 36, C21D 948, C22C 3800

Patent

active

040010520

ABSTRACT:
Hot-rolled low-carbon steel strip with an excellent press-workability capable of forming a smooth pressed surface consisting essentially of up to 0.12 wt. % carbon, up to 0.01 wt. % nitrogen, up to 0.0094 wt. % boron, and other specific optional ingredients, the B(%)/N(%) ratio being 0.3 to 0.94. The micrograin size number, JIS, of ferrite in the steel strip as hot-rolled is 7 to 9. The steel strip is made by hot-rolling while controlling the temperatures at the entry and delivery ends of a hot-strip finishing mill.

REFERENCES:
patent: 2357876 (1944-09-01), Crafts et al.
patent: 2771651 (1956-11-01), Morgan et al.
patent: 2772154 (1956-11-01), Morgan et al.
patent: 2999749 (1961-09-01), Saunders et al.
patent: 3716420 (1973-02-01), Matsudo et al.
patent: 3725143 (1973-04-01), Alworth et al.

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