API Std 650 - Shell Nozzle Welding Schedule (mm)

Written by Jerry Ratzlaff on . Posted in American Petroleum Institute

American Petroleum Institute (API)

standards

  • API Std 650 - Standard for Welded Tanks for Oil Storage
Thickness

of Shell and

Reinforcing

Plate \(t\) and \(T\)

Size of Fillet

Weld A Nozzles

Larger than

NPS 2

5 6
6 6
8 6
10 6
11 6
13 6
14 6
16 8
17 8
20 10
21 11
22 11
24 13
25 13
27 14
28 14
30 14
32 16
33 16
35 17
36 17
38 20
40 21
41 21
43 22
45 22