GB669798A - Improvements relating to cast iron - Google Patents
Improvements relating to cast ironInfo
- Publication number
- GB669798A GB669798A GB19454/50A GB1945450A GB669798A GB 669798 A GB669798 A GB 669798A GB 19454/50 A GB19454/50 A GB 19454/50A GB 1945450 A GB1945450 A GB 1945450A GB 669798 A GB669798 A GB 669798A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- cast iron
- improvements relating
- temperature
- cast
- 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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Grey cast iron containing 2.25-3.25 per cent C, 7-10 per cent Ni, 3-4 per cent Cu (Ni plus Cu not exceeding 14 per cent), 1-4 per cent Cr, 1.5-3 per cent Si, up to 1 per cent Mn, the balance being iron and unavoidable impurities, is hardened by treating to a temperature of 1000-1050 DEG F. The "as cast" metal may be softened for machining by heating to 1600-1800 DEG F. and cooling rapidly to below 900 DEG F. The castings may be held at the hardening temperature for 8 to 15 hours.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US669798XA | 1949-08-06 | 1949-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB669798A true GB669798A (en) | 1952-04-09 |
Family
ID=22072960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19454/50A Expired GB669798A (en) | 1949-08-06 | 1950-08-03 | Improvements relating to cast iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB669798A (en) |
-
1950
- 1950-08-03 GB GB19454/50A patent/GB669798A/en not_active Expired
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