Making tubes with welded or soldered seams

Introduced: September 1968

Full Title

Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape > of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes > Making tubes with welded or soldered seams

CPC subdivides this area 3x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

Child Classifications

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B21C 37/0803 CPC only CPC only
B21C 37/0807 +1 CPC CPC only CPC only
B21C 37/0815 CPC only CPC only
B21C 37/0818 CPC only CPC only
B21C 37/0822 CPC only CPC only
B21C 37/0826 CPC only CPC only
B21C 37/083 Supply, or operations combined with supply, of strip material IPC+CPC Available in IPC and CPC
B21C 37/087 using rods or strips of soldering material IPC+CPC Available in IPC and CPC
B21C 37/09 of coated strip material IPC+CPC Available in IPC and CPC