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IPC 7
 
C22C-C22C03710
  C22C 38/00 - C22C 121:02  

SECTION C – CHEMISTRY; METALLURGY


C 22METALLURGY (of iron C21); FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS (general methods or devices for heat treatment of ferrous or non-ferrous metals or alloys C21D; production of metals by electrolysis or electrophoresis C25)


C 22 CALLOYS (flints C06C 15/00; treatment of alloys C21D, C22F)


Notes

(1)In this subclass, the following terms or expressions are used with the meanings indicated:

 "alloys" includes also:

 (a)metallic composite materials containing a substantial proportion of fibres or other somewhat larger particles;

 (b)ceramic compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents.  [4]

 "based on" requires at least 50% by weight of the specified constituent or of the specified group of constituents.  [2]

(2)In this subclass, it is desirable to add the indexing codes of subclass C22K. The indexing codes should be unlinked.  [6]


Subclass Index

NON-FERROUS ALLOYS 

Manufacture 

C22C 1/00, C22C 3/00 

Based on or containing particular metals 

C22C 5/00 to C22C 32/00 

FERROUS ALLOYS 

Manufacture 

C22C 33/00 

Master alloys 

C22C 35/00 

Cast-iron alloys 

C22C 37/00 

Iron alloys 

C22C 38/00 

RADIOACTIVE ALLOYS 

C22C 43/00 

AMORPHOUS ALLOYS 

C22C 45/00 

ALLOYS CONTAINING FIBRES OR FILAMENTS 

C22C 47/00, C22C 49/00 



Non-ferrous alloys, i.e. alloys based essentially on metals other than iron (master alloys for iron and steel C22C 35/00; alloys containing radioactive material C22C 43/00; amorphous alloys C22C 45/00; alloys containing fibres or filaments C22C 47/00, C22C 49/00)  [2,5]


1/

00Making alloys (powder-metallurgical apparatus or processes, not specially modified for making alloys B22F; by electrothermic methods C22B 4/00; by electrolysis C25C)

1/

02.by melting

1/

03..using master alloys  [2]

1/

04.by powder metallurgy (C22C 1/08 takes precedence)  [2]

1/

05..Mixtures of metal powder with non-metallic powder (C22C 1/08 takes precedence)  [2]

1/

06.with the use of special agents for refining or deoxidising

1/

08.Alloys with open or closed pores

1/

09(transferred to C22C 47/00, C22C 49/00)

1/

10.Alloys containing non-metals (C22C 1/08 takes precedence)  [2]


3/

00Removing material from alloys to produce alloys of different constitution


5/

00Alloys based on noble metals

5/

02.Alloys based on gold  [2]

5/

04.Alloys based on a platinum group metal  [2]

5/

06.Alloys based on silver  [2]

5/

08..with copper as the next major constituent  [2]

5/

10..with cadmium as the next major constituent  [2]


7/

00Alloys based on mercury


9/

00Alloys based on copper

9/

01.with aluminium as the next major constituent  [2]

9/

02.with tin as the next major constituent  [2]

9/

04.with zinc as the next major constituent  [2]

9/

05.with manganese as the next major constituent  [2]

9/

06.with nickel or cobalt as the next major constituent  [2]

9/

08.with lead as the next major constituent  [2]

9/

10.with silicon as the next major constituent


11/

00Alloys based on lead

11/

02.with an alkali or an alkaline earth metal as the next major constituent  [2]

11/

04.with copper as the next major constituent  [2]

11/

06.with tin as the next major constituent  [2]

11/

08.with antimony or bismuth as the next major constituent  [2]

11/

10..with tin  [2]


12/

00Alloys based on antimony or bismuth  [2]


13/

00Alloys based on tin

13/

02.with antimony or bismuth as the next major constituent  [2]


14/

00Alloys based on titanium  [2]


16/

00Alloys based on zirconium  [2]


18/

00Alloys based on zinc  [2]

18/

02.with copper as the next major constituent  [2]

18/

04.with aluminium as the next major constituent  [2]


19/

00Alloys based on nickel or cobalt

19/

03.based on nickel  [2]

19/

05..with chromium  [2]

19/

07.based on cobalt  [2]


20/

00Alloys based on cadmium  [2]


21/

00Alloys based on aluminium

21/

02.with silicon as the next major constituent  [2]

21/

04..Modified aluminium-silicon alloys

21/

06.with magnesium as the next major constituent  [2]

21/

08..with silicon  [2]

21/

10.with zinc as the next major constituent  [2]

21/

12.with copper as the next major constituent  [2]

Note

 In groups C22C 21/14 to C22C 21/18, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place.  [4]

21/

14..with silicon  [2]

21/

16..with magnesium  [2]

21/

18..with zinc  [2]


22/

00Alloys based on manganese  [2]


23/

00Alloys based on magnesium

23/

02.with aluminium as the next major constituent  [2]

23/

04.with zinc or cadmium as the next major constituent  [2]

23/

06.with a rare earth metal as the next major constituent  [2]


24/

00Alloys based on an alkali or an alkaline earth metal  [2]


25/

00Alloys based on beryllium


26/

00Alloys containing diamond  [4]


27/

00Alloys based on rhenium or a refractory metal not mentioned in groups C22C 14/00 or C22C 16/00  [2]

27/

02.Alloys based on vanadium, niobium or tantalum  [2]

27/

04.Alloys based on tungsten or molybdenum  [2]

27/

06.Alloys based on chromium  [2]


28/

00Alloys based on a metal not provided for in groups C22C 5/00 to C22C 27/00  [2]


29/

00Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides  [4]

29/

02.based on carbides or carbonitrides  [4]

29/

04..based on carbonitrides  [4]

29/

06..based on carbides, but not containing other metal compounds  [4]

29/

08...based on tungsten carbide  [4]

29/

10...based on titanium carbide  [4]

29/

12.based on oxides  [4]

29/

14.based on borides  [4]

29/

16.based on nitrides  [4]

29/

18.based on silicides  [4]


30/

00Alloys containing less than 50% by weight of each constituent  [2]

Note

 In groups C22C 30/02 to C22C 30/06, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place.  [4]

30/

02.containing copper  [2]

30/

04.containing tin or lead  [2]

30/

06.containing zinc  [2]


32/

00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ  [2]


Ferrous alloys, i.e. alloys based on iron (alloys containing radioactive material C22C 43/00; amorphous alloys C22C 45/00; alloys containing fibres or filaments C22C 47/00, C22C 49/00; heat treatment thereof C21D)  [2,5]


33/

00Making ferrous alloys

33/

02.by powder metallurgy (working metallic powder B22F)

33/

04.by melting  [2]

33/

06..using master alloys  [2]

33/

08.Making cast-iron alloys  [2]

33/

10..including procedures for adding magnesium  [2]

33/

12...by fluidised injection  [2]


35/

00Master alloys for iron or steel

Note

 In groups C22C 37/00 or C22C 38/00, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place that provides for one of the alloying components.  [2]


37/

00Cast-iron alloys  [2]

37/

04.containing spheroidal graphite

37/

06.containing chromium  [2]

37/

08..with nickel

37/

10.containing aluminium or silicon

   C22C 38/00 - C22C 121:02  
 

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