ʻO ka paipu Alloy kahi ʻano o ka paipu kila maʻemaʻe, i māhele ʻia i loko o ka paipu seamless structural a me ke kiʻekiʻe kiʻekiʻe o ka wela wela. ʻOkoʻa loa mai nā kūlana hana a me nā ʻoihana o nā paipu alloy, nā ʻāpana annealed a me nā mea hoʻonaninani i hoʻololi i nā waiwai mechanical. E hoʻokō i nā kūlana hana pono. ʻOi aku ka kiʻekiʻe o kāna hana ma mua o ka paipu kila liʻiliʻi maʻamau, ʻoi aku ka nui o ka Cr i ka haku mele, no laila ke kūpaʻa kiʻekiʻe o ka wela, ke kūpaʻa haʻahaʻa haʻahaʻa a me ke kūpaʻa corrosion. ʻAʻole i loaʻa i nā paipu kalapona maʻamau ʻaʻohe huila a i ʻole kahi liʻiliʻi o ka huila. Hoʻohana nui ʻia ka pahu Alloy i ka ʻaila, aerospace, kemika, ka mana uila, ka paila, ka pūʻali koa a me nā ʻoihana ʻē aʻe, no ka mea, ʻokoʻa nā ʻano mechanical o ka pahu alloy, maʻalahi e hoʻoponopono.

Hoʻohana nui ʻia ka paipu kila Alloy i ka mana mana, ka mana nuklea, ka paila kiʻekiʻe, ka superheater kiʻekiʻe, ka reheater a me nā paipu kiʻekiʻe kiʻekiʻe a me nā mea hana. Hana ʻia ʻo ia me ke kila kalapona kiʻekiʻe, ke kila hoʻoheheʻe ʻia a me ke kila pale wela e ka ʻōwili wela (extrusion, expansion) a i ʻole ka ʻōwili anuanu (drawing).