IBM 5081 Punch Card Stock in Strips
Coated bleached kraft paperboard cards in continuous strips, compatible with IBM 5081 punchcard systems for mainframe data entry. Uniformly bleached with >95% chemical pulp, >150 g/m², kaolin-coated for durability and printability before punching. Not pre-punched, intended for punchcard machine processing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lightweight coated (<72 g/m²)
Light-weight coated paper, even for cards, uses 4810.22 if under weight and mechanical fiber specs apply.
If loose sheets cut to size, not strip
Chapter note excludes loose cut sheets/cards from 4820, but non-punchcard intent shifts here.
If made from recovered pulp
Recovered pulp paperboard with burst index ≥2 kPa·m²/g classifies under 4805.24, not kraft chemical pulp.
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Import Tips & Compliance
• Include historical IBM spec sheets or equivalent to prove punchcard machine compatibility during customs exam
• Strip format must be documented; loose sheets may classify under 4820 if cut to size and not specifically for punch machines
• Test for >95% chemical fiber content—mechanical pulp blends go to 4804.21/29 sack kraft if specs match
Related Products under HTS 4810.32.30.00
Kraft Bleached Punchcard Machine Cards
These are rectangular cards made from bleached kraft paperboard, coated with kaolin on one or both sides, weighing over 150 g/m² with over 95% chemical wood fibers. Designed specifically as blank, unpunched cards for punchcard machines used in data processing. They may be supplied in strips for easy loading into legacy computing systems.
Unpunched 80-Column Punchcard Blanks
Standard 80-column rectangular cards from kaolin-coated bleached kraft paperboard (>150 g/m², >95% chemical wood fibers), for punchcard tabulating machines. Blank surface allows custom printing; supplied flat or in fan-fold strips. Meets legacy data processing requirements without pre-perforation.
Fan-Fold Punchcard Strip Stock
Continuous fan-fold strips of bleached, kaolin-coated kraft cards (>150 g/m², chemical pulp dominant), detachable into individual unpunched cards for punchcard machines. Designed for high-volume data processing in vintage computing environments. Surface-coated for ink receptivity without other binders.
Legacy Fortran Punch Card Paperboard
Heavyweight bleached kraft paperboard sheets, kaolin-coated, cut into cards or strips for Fortran programming punchcard input to old mainframes. Over 150 g/m² with chemical process fibers >95%, unpunched for custom encoding. Ideal for archival computing restoration projects.