SH1, SH2, ... SH9 - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

Specifies the hot stresses. Typically, these are the hot allowable stress for the specific material taken directly from the governing piping code.

Typical units (depending on your unit system):

  • lb/in2

  • KPa

  • N/mm²

CAESAR II fills the boxes automatically after you select the material and piping code. There are nine boxes corresponding to the nine operating temperatures. You must type a value for each defined temperature case. The value of SH is usually divided by the longitudinal weld efficiency (Eff) before being used.

See the recommendations that follow for your selected piping code.

B31.1

Allowable stress from Appendix A. For more information, see SC.

B31.3, B31.3 Chapter IX

Allowable stress from Appendix A. For more information, see SC.

B31.4, B31.4 Chapter IX, B31.4 Chapter XI

Not used.

B31.5

Allowable stress from Appendix A. For more information, see SC.

B31.8

Temperature derating factor, T, according to Table 841.116A.

B31.8, Chapter VIII

Temperature derating factor, T (according to Table 841.116A).

B31.9

Allowable stress from Table I-1. For more information, see SC.

ASME NC and ND

Allowable stress from Appendix I.

Navy 505

Allowable stress from Table XIIA. For more information, see SC.

CAN Z662

Not used.

BS 806

0.2% of the proof stress at design temperature Appendix E. Eff is not used.

Swedish Method 1

Yield stress at temperature from Appendix 1.

Swedish Method 2

Allowable stress at temperature from Appendix 2.

B31.1 (1967)

Allowable stress from Appendix A. For more information, see SC.

Stoomwezen

Yield stress at design temperature. This value is referred to as Re (vm) in the code.

RCC-M C, D

Taken from the Appendix.

CODETI

f from the code.

Norwegian

f2 from the code.

FDBR

Hot allowable defined in Section 3.2.

BS 7159

Design stress sd in the longitudinal direction as defined in Section 4.3 of the code (σdd * Elamx). Specify design stress in the circumferential (hoop) direction by typing the ratio of the circumferential design stress to the axial design stress in the Eff box. Because design strain should be the same for both directions, the value in the Eff box is also the ratio of Elamf(hoop) to Elamx (longitudinal).

UKOOA

Allowable design stress in the hoop direction defined in the code as f1 * LTHS. The three hot allowable stress boxes correspond to the three possible temperature cases.

DNV

Yield stress is used here instead of hot allowable stress.

IGE/TD/12

Yield stress is used here instead of a hot allowable stress.

EN-13480

Allowable stress at maximum metal temperature.

GPTC/Z380

Temperature reduction factor T according to Par. 192.115.

PD-8010 (Part 1 & Part 2)

Not used.

ISO 14692

SH is used in a different way. See the reference for ISO 14692.

HPGSL

Not used.

JPI

Not used.