2007-01-30 12:48:51 · 3 answers · asked by im ur daddy 2 in Science & Mathematics ➔ Engineering
No they are not. They are made of carbon steel, 316 Stainless Steel, Hastelloy and many other materials. The material used is very dependent on the processing unit.
2007-01-30 13:04:25 · answer #1 · answered by Scott S 4 · 2⤊ 1⤋
lead would not be useful for pipes in a refinery because of the danger of fires or explosions they would melt at a very low heat causing more problems. They are soft, heavy and weak as well, they cost a lot, and there are lots of environmental regulations on lead ... you could hardly come up with a worse material to make pipes out of.
2007-01-30 21:18:35 · answer #2 · answered by themountainviewguy 4 · 2⤊ 0⤋
No lead pipes are used, They are mostly Carbon Steel CS and grades selection is according to the fluid requirements.
2007-01-31 06:47:39 · answer #3 · answered by Kalooka 7 · 1⤊ 1⤋