GB832579A - Improved ferrous alloys - Google Patents
Improved ferrous alloysInfo
- Publication number
- GB832579A GB832579A GB35849/57A GB3584957A GB832579A GB 832579 A GB832579 A GB 832579A GB 35849/57 A GB35849/57 A GB 35849/57A GB 3584957 A GB3584957 A GB 3584957A GB 832579 A GB832579 A GB 832579A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cast
- austenite
- cast iron
- alloy
- matrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
Abstract
A cast iron containing Al 1.0-5.0%, Mn 1.5-15.0% and Ni 0 to less than 2.0% has a structure in the "as-cast" condition comprising free graphite in a matrix of austenite and/or an acicular transformation constituent thereof, e.g. a matrix of austenite and bainite. The relative contents of Al and Mn may be adjusted to produce either a white or a gray cast iron. Any of the common alloying elements used in cast irons may be included, e.g. Cr, V, Mo, Cu, Ni, Co. Other elements such as Ca, Cl, Mg, Li, Na, K, Bi, Ti may also be present, e.g. Mg may be added to render the graphite carbon in spheroidal form. The cast iron may be heat treated. Thus an "as-cast" bainite structure may be converted to austenite by quenching from 1600-1900 DEG F. or even lower depending on the composition. An austenitic product may be precipitation hardened at 900-1200 DEG F. The alloy may be produced by introducing Al as a ladle addition, in the form of ingot or shot or as an alloy, e.g. with manganese, to high manganese metal melted in an electric furnace or acid lined cupola. Alternatively Al may be added as chunks mixed with Al powder and a metallic oxide. These constituents act as an exothermic mixture to assist alloying and to improve the fluidity of the melt. Specification 281,051 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US832579XA | 1957-08-13 | 1957-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB832579A true GB832579A (en) | 1960-04-13 |
Family
ID=22177175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35849/57A Expired GB832579A (en) | 1957-08-13 | 1957-11-18 | Improved ferrous alloys |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB832579A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001006028A1 (en) * | 1999-07-15 | 2001-01-25 | Freni Brembo S.P.A. | Cast iron for vehicle brake components |
RU2471882C1 (en) * | 2011-10-28 | 2013-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежская государственная лесотехническая академия" | Wear proof cast iron |
CN104451363A (en) * | 2014-12-25 | 2015-03-25 | 常熟市瑞峰模具有限公司 | Alloy cast iron mold for production of cosmetics containers |
-
1957
- 1957-11-18 GB GB35849/57A patent/GB832579A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001006028A1 (en) * | 1999-07-15 | 2001-01-25 | Freni Brembo S.P.A. | Cast iron for vehicle brake components |
RU2471882C1 (en) * | 2011-10-28 | 2013-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежская государственная лесотехническая академия" | Wear proof cast iron |
CN104451363A (en) * | 2014-12-25 | 2015-03-25 | 常熟市瑞峰模具有限公司 | Alloy cast iron mold for production of cosmetics containers |
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