High strength steel composition having enhanced low temperature

Details High strength steel composition having enhanced low temperature High strength steel composition having enhanced low temperature

1996-08-23

1998-06-30

Yee, Deborah

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

148335, 148663, C22C 3844, C21D 900

Patent

active

057729573

ABSTRACT:
An iron composition and method for processing the composition that produces a steel alloy having enhanced low temperature toughness, without compromising other desirable mechanical properties, is described. The composition can be used to produce devices, such as saw chain, particularly useful for low temperature applications. In general, the steel composition comprises from about 0.2 weight percent to about 0.4 weight percent nickel, from about 0.2 to about 0.4 weight percent chromium, from about 0.5 weight percent to about 1.0 weight percent carbon, from about 0.3 to about 0.5 weight percent manganese, from about 0.1 to about 0.35 weight percent silicon, and from about 0.08 weight percent to about 0.20 weight percent molybdenum. After heat treating, the steel composition has an average fracture toughness of greater than about 42 ksi in.sup.1/2, and an average modified Charpy energy-to-failure of greater than about 2 ft.lbs at temperatures greater than about -20.degree. F. A method for making and heat treating the compositions also is described. Plural saw chain components may be made from the alloy and then assembled into saw chain.

REFERENCES:
patent: 3655366 (1972-04-01), DePaul
patent: 3663316 (1972-05-01), Kulmburg
patent: 3854363 (1974-12-01), Merkell et al.
patent: 3907614 (1975-09-01), Bramfitt et al.
patent: 4062705 (1977-12-01), Gondo et al.
Key To Steels, 10 Edition 1974, Germany.
"Alloying Elements in Steel," American Society for Metals, 2nd Ed., p. 244 (1961).

Affiliated with

Also associated with

Rating

High strength steel composition having enhanced low temperature 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 strength steel composition having enhanced low temperature , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High strength steel composition having enhanced low temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1855949