Page 72 - Parker - Energy Products Division - Multitube (Instrument and Heat Trace Tubing Products)

General Technical Information Catalog Number 4200-M-2

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Material Specifications for Metal Tubing Tubing Pressure Rating*§
Tube Size Tubing Pressure Rating (PSI) Versus Temperature
(in.)
Tubing Type
100˚F 200˚F 300˚F 400˚F 500˚F 600˚F
O.D. Wall
Burst Opr. Burst Opr. Burst Opr. Burst Opr. Burst Opr. Burst
Copper Type DHP, 1/4 .030 7230 1450 6630 1330 5730 1150 3620 730 - - - -
Alloy No. 122, Soft 3/8 .032 5040 1010 4620 930 3990 800 2520 510 - - - -
Annealed Bright
Seamless ASTM B68 1/2 .035 4050 810 3710 750 3200 640 2020 410 - - - -
and B75 1/2 .049 5900 1180 5400 1080 4700 940 2950 590 - - - -
1/4 .035 20100 5025 20100 5025 18200 4550 16900 4225 16300 4075 15900 3975
Stainless Steel, Type 3/8 .035 12800 3200 12800 3200 11600 2900 10800 2700 10400 2600 10200 2550
316 Welded per 1/2 .035 9400 2350 9400 2350 8500 2125 7900 1975 7600 1900 7500 1875
ASTM A-269
1/2 .049 13500 3375 13500 3375 12300 3075 11400 2850 10900 2725 10700 2675
1/4 .035 23650 5910 23645 5910 23300 5825 19880 4970 19180 4795 18700 4675
Stainless Steel, Type 3/8 .035 15060 3765 15060 3765 13640 3410 12700 3175 12240 3060 12000 3000
316 Seamless per
ASTM A-269 1/2 .035 11060 2765 11060 2765 10000 2500 9300 2325 8940 2235 8820 2205
1/2 .049 15880 3970 15880 3970 14480 3620 13420 3355 12820 3205 12580 3145
*All values are nominal.

Reference: Pressure data for metal tubing is taken
2st
from American National Standard Code for Pressure
Burst Pressure = K D-0.8t
Piping, “Power Piping, ANSI B31.1 – B30-1993A
Edition.” The values stated for operating (opr.)
where K = efficiency of weld (0.85);
pressure are the maximum internal service pressure
(K = 1 for seamless)
determined using the calculated burst pressure and
s = tensile strength of stainless steel (psi)
an associated design factor. The equations and
D = tube O.D., in inches
stress values were extracted from the above listed
t = tube wall thickness in inches
document.
The operating pressure is taken to be 25% of the
Pressure data for Parker stainless steel tubing is
burst pressure, which is a 4 to 1 design factor.
derived from the relation:

Parker Hannifin Corporation
69 Energy Products Division 70