Page 38 - Pressure Vessel Design Manual

Design Procedure For Spheres and Heads Step 2: Find Factor ‘‘€3” from applicable material chart.

Step 1: Assume a thickness and calculate Factor “A.” B=

0.125
A=- Step 3: Compute Pa.
Ro

Figure 2-If. Chart for determining shell thickness of components under external pressure when constructed of carbon or low-alloy steels (specified
minimum yield strength 24,OOOpsi to, but not including, 30,OOOpsi). (Reprinted by permission from the ASME Code, Section VIII, Div. 1.)

25.000

20.000
18,OM)
16.000
14.000
12.000
lO.Oo0
9.000 m
8.003 5
0
7.000 (d
u.
6.000
5,000
4.000
3,500
3,000
2.500
o.oooo1 ami 0.001 0.01 01
Factor A
Figure 2-1 g. Chart for determining shell thickness of components under external pressure when constructed of carbon or low-alloy steels (specified
minimum yield strength 30,OOOpsi and over except materials within this range where other specific charts are referenced) and type 405 and type 410
stainless steels. (Reprinted by permission from the ASME Code, Section VIII, Div. 1.)