Sizes: From 1/2" up to 64". Bigger than 64" can also be made available upon request. Pressure rating: From #150lbs to #2500lbs Steel grades: Carbon Steel (A516 Gr 60/65/70), Mild Steel (A36/S275 JR/ A285 Gr C), Stainless Steel (SS304, SS316). NACE Sour Service is available as well. more...