Procedure 2-11 Calculate MAP, MAWP, and Test Pressures

Sa = allowable stress at ambient temperature, psi Sdt = allowable stress at design temperature, psi ScA = allowable stress of clad material at ambient temperature, psi 

ScD = allowable stress of clad material at design temperature, psi 

Sba = allowable stress of base material at ambient temperature, psi 

= corrosion allowance, in. tsc = thickness of shell, corroded, in. tsn = thickness of shell, new, in. the = thickness of head, corroded, in. thn = thickness of head, new, in. tb = thickness of base portion of clad material, in. tc = thickness of cladding, in. 

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