IPC 6 English version C22C !A-C22C 45/10

C22C-C22C04510

SECTION C– CHEMISTRY; METALLURGY

C 22

METALLURGY (of iron C 21); 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 C 21 D; production of metals by electrolysis or electrophoresis C 25)

C 22 C

ALLOYS (flints C 06 C 15/00; treatment of alloys C 21 D, C 22 F)

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 C 22 K. The indexing codes should be unlinked. [6]

Non-ferrous alloys, i.e. alloys based essentially on metals other than iron (master alloys for iron and steel C 22 C 35/00; alloys containing radioactive material C 22 C 43/00; amorphous alloys C 22 C 45/00) [2,5]

Making alloys (powder-metallurgical apparatus or processes, not specially modified for making alloys B 22 F; by electrothermic methods C 22 B 4/00; by electrolysis C 25 C)

by melting

using master alloys [2]

by powder metallurgy (C 22 C 1/08, C 22 C 1/09 take precedence) [2]

Mixtures of metal powder with non-metallic powder (C 22 C 1/08, C 22 C 1/09 take precedence) [2]

with the use of special agents for refining or deoxidising

Alloys with open or closed pores

Alloys containing metallic or non-metallic fibres or filaments [2]

Alloys containing non-metals (C 22 C 1/08, C 22 C 1/09 take precedence) [2]

Removing material from alloys to produce alloys of different constitution

Alloys based on noble metals

Alloys based on gold [2]

Alloys based on a platinum group metal [2]

Alloys based on silver [2]

with copper as the next major constituent [2]

with cadmium as the next major constituent [2]

Alloys based on mercury

Alloys based on copper

with aluminium as the next major constituent [2]

with tin as the next major constituent [2]

with zinc as the next major constituent [2]

with manganese as the next major constituent [2]

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

with lead as the next major constituent [2]

with silicon as the next major constituent

11/

Alloys based on lead

11/

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

11/

with copper as the next major constituent [2]

11/

with tin as the next major constituent [2]

11/

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

11/

with tin [2]

12/

Alloys based on antimony or bismuth [2]

13/

Alloys based on tin

13/

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

14/

Alloys based on titanium [2]

16/

Alloys based on zirconium [2]

18/

Alloys based on zinc [2]

18/

with copper as the next major constituent [2]

18/

with aluminium as the next major constituent [2]

19/

Alloys based on nickel or cobalt

19/

based on nickel [2]

19/

with chromium [2]

19/

based on cobalt [2]

20/

Alloys based on cadmium [2]

21/

Alloys based on aluminium

21/

with silicon as the next major constituent [2]

21/

Modified aluminium-silicon alloys

21/

with magnesium as the next major constituent [2]

21/

with silicon [2]

21/

with zinc as the next major constituent [2]

21/

with copper as the next major constituent [2]

Note

In groups C 22 C 21/14 to C 22 C 21/18, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place. [4]

21/

with silicon [2]

21/

with magnesium [2]

21/

with zinc [2]

22/

Alloys based on manganese [2]

23/

Alloys based on magnesium

23/

with aluminium as the next major constituent [2]

23/

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

23/

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

24/

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

25/

Alloys based on beryllium

26/

Alloys containing diamond [4]

27/

Alloys based on rhenium or a refractory metal not mentioned in groups C 22 C 14/00 or C 22 C 16/00 [2]

27/

Alloys based on vanadium, niobium or tantalum [2]

27/

Alloys based on tungsten or molybdenum [2]

27/

Alloys based on chromium [2]

28/

Alloys based on a metal not provided for in groups C 22 C 5/00 to C 22 C 27/00 [2]

29/

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

29/

based on carbides or carbonitrides [4]

29/

based on carbonitrides [4]

29/

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

29/

based on tungsten carbide [4]

29/

based on titanium carbide [4]

29/

based on oxides [4]

29/

based on borides [4]

29/

based on nitrides [4]

29/

based on silicides [4]

30/

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

Note

In groups C 22 C 30/02 to C 22 C 30/06, in the absence of an indication to the contrary, an alloy is classified in the last appropriate place. [4]

30/

containing copper [2]

30/

containing tin or lead [2]

30/

containing zinc [2]

32/

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

Ferrous alloys (alloys containing radioactive material C 22 C 43/00; amorphous alloys C 22 C 45/00; heat treatment thereof C 21 D) [2,5]

33/

Making ferrous alloys

33/

by powder metallurgy (working metallic powder B 22 F)

33/

by melting [2]

33/

using master alloys [2]

33/

Making cast-iron alloys [2]

33/

including procedures for adding magnesium [2]

33/

by fluidised injection [2]

35/

Master alloys for iron or steel

Note

In groups C 22 C 37/00 or C 22 C 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/

Cast-iron alloys [2]

37/

containing spheroidal graphite

37/

containing chromium [2]

37/

with nickel

37/

containing aluminium or silicon

38/

Ferrous alloys, e.g. steel alloys (cast-iron alloys C 22 C 37/00) [2]

38/

containing silicon [2]

38/

containing manganese [2]

38/

containing aluminium [2]

38/

containing nickel [2]

38/

containing cobalt [2]

38/

containing tungsten, tantalum, molybdenum, vanadium or niobium [2]

38/

containing titanium or zirconium [2]

38/

containing copper [2]

38/

containing chromium [2]

38/

with copper [2]

38/

with molybdenum or tungsten [2]

38/

with vanadium [2]

38/

with niobium or tantalum [2]

38/

with titanium or zirconium [2]

38/

with cobalt [2]

38/

with boron [2]

38/

with more than 1.5% by weight of silicon [2]

38/

with more than 1.7% by weight of carbon [2]

38/

with more than 1.5% by weight of manganese [2]

38/

with nickel [2]

38/

with copper [2]

38/

with molybdenum or tungsten [2]

38/

with vanadium [2]

38/

with niobium or tantalum [2]

38/

with titanium or zirconium [2]

38/

with cobalt [2]

38/

with boron [2]

38/

with more than 1.7% by weight of carbon [2]

38/

with more than 1.5% by weight of manganese [2]

38/

containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur [2]

43/

Alloys containing radioactive materials [2]

45/

Amorphous alloys [5]

45/

with iron as the major constituent [5]

45/

with nickel or cobalt as the major constituent [5]

45/

with beryllium as the major constituent [5]

45/

with aluminium as the major constituent [5]

45/

with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium as the major constituent [5]