ʻO ka paipu kila carbon he paipu kila i hana ʻia mai ke kila kalapona, i hana ʻia me ke kila ingot a i ʻole ke kila pōʻai paʻa ma o ka perforation, a laila hana ʻia e ka ʻōwili wela, ka ʻōwili anu a i ʻole ke kiʻi anu. ʻO ka maʻi kalapona ma kahi o 0.05% a 1.35%. Hoʻokaʻawale nui ʻia nā paipu hao kalapona i: nā paipu kila maʻemaʻe no ka hoʻohana ʻana i ka hana, nā paipu kila maʻemaʻe no ka lawe ʻana i nā wai, nā paipu kila maʻemaʻe no nā paila haʻahaʻa a me ka haʻahaʻa haʻahaʻa, nā paipu kila liʻiliʻi no nā paila kiʻekiʻe.