A Norma OD ( em inglês outside diameter ), refere-se a tubos de diâmentro externo que próvem da medidad de 1″ = 25,40mm, de formato redondo. Podem ser fornecidos em diversos acabamentos, como decapado, escovados e polidos interno e/ou externo.

DIÂMETRO EXTERNOESPESSURA PAREDE (Mm)
pol.mm0,901,001,201,501,652,002,112,502,773,00
1/4″6,350,1230,1340,1550,183-----
5/16″7,930,1590,171-------
3/8″9,530,1950,2140,2600,303-----
7/16″11,110,2230,249-------
1/2″12,700,2670,2940,3470,4220,4580,538---
9/16″14,290,3020,333-------
5/8″15,870,3390,3740,4420,5420,590----
3/4″19,050,4100,4500,5370,6600,7190,8540,896--
7/8″22,22-0,5330,6590,781-1,017----
1″25,40-0,6130,7300,9010,9851,1761,2351,4081,5751,689
1.1/4″31,75-0,7730,9211,1401,2481,4951,5721,8032,0172,168
1.1/2″38,10-0,9331,1101,3761,5071,8091,9082,1932,4592,647
1.3/4″44,45-1,0921,3061,6211,7772,1362,2452,5862,9053,125
2″50,80-1,2521,4961,8582,0382,4532,5812,9783,3443,604
2.1/2″63,50-1,5711,8792,3372,5653,0913,2553,7614,2274,561
3″76,20-1,8902,2622,8163,0913,7293,9294,5445,1115,519
3.1/2″88,90---3,295-4,368-5,7445,8536,355
4″101,60-2,5283,0283,773-5,006-6,1106,7157,295
5″127,00-3,1673,7944,731-6,160-7,6808,6519,170
6″152,40-3,8054,5605,688-7,420-9,24010,39211,050
8″203,20-5,0816,0927,603-9,920-12,37013,94414,810
10″254,00-6,3597,6249,519-12,430-15,50017,49518,570
12″304,80-7,6359,15611,434-14,930-18,64021,04722,350
14″355,60-----17,735-24,570-
16″406,40-------28,150-
20″508,00-------35,179-