1.Grades:304,304L,310S,316,316L,316H,317L,321,321H,347,347H,904L2.Outer diameter size:ERW- 8"NB To 110"NB (Nominal Bore Size)3.Wall thickness:Schedule 10 To Schedule 160(3 mm to 100 mm Thickness)4.Classes(CL):CL1,CL2,CL3,CL4,CL5...
a358gr.304cl1 -196°C管道用E308-15或E308-16焊材，详细参见国家标准GB 50236-2011表D.0.1-1。