ALLOYS (flints C06C15/00; treatment of alloys C21D, C22F)

Introduced: September 1968

Description

C22C covers the composition, structure, and properties of alloys—metallic materials composed of two or more elements where at least one is a metal. This subclass includes ferrous alloys (iron-based), non-ferrous alloys (aluminum, copper, nickel, titanium, magnesium, zinc, and other metal bases), and their constituent phases and microstructures. The classification encompasses alloy design, alloying elements' effects on mechanical and physical properties, corrosion resistance, heat treatability, and technological specifications for industrial applications ranging from structural materials to precision components. Related processing methods and heat treatment are covered elsewhere in C22B-C22F.

Title

Titles differ between systems:

IPC: ALLOYS

CPC: ALLOYS (flints C06C15/00; treatment of alloys C21D, C22F)

Full Title

Full titles differ between systems:

IPC:

ALLOYS

CPC:

ALLOYS (flints C06C15/00; treatment of alloys C21D, C22F)

Of 38 combined children, 32 exist in both systems.

3 codes are CPC-only extensions, 3 exist only in IPC.

Note: 3 CPC extensions are marked as secondary classification only.

8 shared codes have differing titles between IPC and CPC.

Child Classifications

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C22C 1/00 Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) +1 CPC IPC+CPC Available in IPC and CPC
C22C 101/00 Non-metallic fibres or filaments since 2000 −2 IPC IPC only IPC only
C22C 11/00 Alloys based on lead IPC+CPC Available in IPC and CPC
C22C 111/00 Metallic fibres or filaments since 2000 −1 IPC IPC only IPC only
C22C 12/00 Alloys based on antimony or bismuth since 1974 IPC+CPC Available in IPC and CPC
C22C 121/00 Pretreated fibres or filaments since 2000 −1 IPC IPC only IPC only
C22C 13/00 Alloys based on tin IPC+CPC Available in IPC and CPC
C22C 14/00 Alloys based on titanium since 1974 IPC+CPC Available in IPC and CPC
C22C 16/00 Alloys based on zirconium since 1974 IPC+CPC Available in IPC and CPC
C22C 18/00 Alloys based on zinc since 1974 IPC+CPC Available in IPC and CPC
C22C 19/00 Alloys based on nickel or cobalt +3 CPC IPC+CPC Available in IPC and CPC
C22C 20/00 Alloys based on cadmium since 1974 IPC+CPC Available in IPC and CPC
C22C 21/00 Alloys based on aluminium +2 CPC IPC+CPC Available in IPC and CPC
C22C 22/00 Alloys based on manganese since 1974 IPC+CPC Available in IPC and CPC
C22C 2200/00 Crystalline structure 2nd only +3 CPC CPC only CPC only
C22C 2202/00 Physical properties 2nd only +2 CPC CPC only CPC only
C22C 2204/00 End product comprising different layers, coatings or parts of cermet 2nd only CPC only CPC only
C22C 23/00 Alloys based on magnesium IPC+CPC Available in IPC and CPC
C22C 24/00 Alloys based on an alkali or an alkaline earth metal since 1974 IPC+CPC Available in IPC and CPC
C22C 25/00 Alloys based on beryllium IPC+CPC Available in IPC and CPC