Page 14 of Tube Fabricating Equipment by Parker Hannifin Corporation Instrumentation Products Division

Tube Fabricating Equipment Parker Hannifin Corporation Instrumentation Connectors Division Huntsville, Alabama 14 .010 .020 .028 .035 .049 .065 .083 .095 .109 .120 1/16 5900 12600 17000 1/8 8600 11000 3/16 5500 7100 10300 1/4 4000 5100 7500 10300 5/16 4000 5900 8100 3/8 3300 4800 6600 1/2 2300 3300 4500 5900 5/8 2800 3700 4900 5700 3/4 2300 3100 4000 4600 5400 1 2300 2900 3400 3900 4400 WALL THICKNESS Tube O.D. Size Table 7 MONEL 400 (Seamless) Note: All working pressures have been calculated using the maximum allowable stress levels in accordance with ANSI B31.3, Chemical Plant and Petroleum Refinery Piping Code, 1987 Edition All Calculations are based on maximum outside diameter and minimum wall thickness All working pressures are at ambient (72°F or 22°C) temperature. 100 (38) 1.00 1.00 1.00 1.00 1.00 1.00 200 (93) 0.80 1.00 1.00 1.00 .96 .88 300 (149) 0.78 0.81 1.00 1.00 .90 .82 400 (204) 0.50 0.40 .97 .94 .86 .79 500 (260) .90 .88 .82 .79 600 (316) .85 .82 .77 .79 700 (371) .82 .80 .73 .79 800 (427) .80 .76 .59 .76 900 (486) .78 .73 1000 (538) .77 .69 1100 (593) .62 .49 1200 (649) .37 .30 Temperature F C Table 8 Temperature Derating Factors Example: 1/2 inch x .49 wall seamless stainless steel tubing has a working pressure of 3500 PSI @ room temperature. If the system were to operate 800°F (425°C), a factor of 80% (or .80) would apply (see Table 8 above) and the at temperature system pressure would be 35000 PSI x .80 2800 PSI. System Temperature Operating temperature is another factor in determining the proper tubing material. Copper and aluminum tubing are suitable for low temperature media. Stainless steel and carbon steel tubing are suitable for higher temperature media. Special alloys such as Alloy 600 are recommended for extremely high temperatures (see Table 1). Table 8 lists derating factors which should be applied to the working pressures listed in Tables 2-7 for elevated temperature conditions. Simply locate the correct factor in Table 8 and multiply this by the appropriate value in Tables 2-7 for the elevated temperature working pressure. (Technical Information contd) Monel Copper Aluminum .316SS 304SS Steel 400

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