Steel with improved low temperature toughness

Details Steel with improved low temperature toughness Steel with improved low temperature toughness

1978-12-07

1980-01-29

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75125, 75128W, 148 36, C22C 3806, C22C 3844

Patent

active

041859987

ABSTRACT:
Steel compositions which provide a combination of high-strength with good low-temperature toughness, are made more economical to produce by the addition of small amounts of copper, molybdenum and chromium to reduce the amount of nickel required for such properties. For steels containing less than 1.5% nickel, low temperature toughness can further be improved without any sacrifice in strength by maintaining the silicon content below 0.1%, and preferably below 0.05%.

REFERENCES:
patent: 3110586 (1963-11-01), Gulya et al.
patent: 3310441 (1967-03-01), Mandich
patent: 3592633 (1971-07-01), Osuka et al.
patent: 3692514 (1972-09-01), Hydrean
patent: 3834949 (1974-09-01), Heitmann et al.
patent: 3920051 (1975-11-01), Bell et al.
patent: 3955971 (1976-05-01), Reisdorf
patent: 4025368 (1977-05-01), Sanbongi et al.
patent: 4043807 (1977-08-01), Kirman

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