Piping Wall Thickness Calculation (Cryogenic Application)

I want to calculate wall thickness with following details:

Pipe size=16"

Design Temp= -105deg C = -157 F

Design Pressure= P = 3.5 kg/cm2 g = 49.78 psi

pipe material= A358 TP 304

by using formula:

t = PD / 2(SEW + Py).....................from ASME B31.3

(where t= minimum wall thickness required, P= internal design gage pressure, D= outside diameter of pipe

S= stress value for material from Table A-1,

E= quality factor from Table A-1A or A-1B,

W= weld joint strength reduction factor per para.302.3.5(e),

Y= coefficient from Table 304.1.1)

calue of S, for given temperature, considerng as 20000 psi

thickness comes out to be 0.4 mm, which is obviously not acceptable asit will not even sustain the SELF WEIGHT.

So my dilemma is:

1. Am I using right formula for thickness calculation?

2. Is there any modified formula for Cryogenic piping?

Help me on this exercise to find out the thickness with proper justifications.