Pipe Thermal Expansion Chart

Pipe Thermal Expansion In Inches Per 100 feet​

The table below shows expansion resulting from change in temperature from 70°F to indicate temperature. This table is to used as an informational guide only, and it is not implied that materials are suitable for all temperature ranges shown. Data for Inconel is based on information provided by the International Nickel Co., and all other data is based on Appendix B of the code for power piping ANSI.

Pipe Thermal Expansion In Inches Per 100 feet​
°F Sat. Steam Vacuum in HG(1) Carbon CMO, 3CR MO Steel Austen. Stainl. Steel 5 to 9 CR. Mo. Steel Ferrit Stainl. Steel Monel 400 Inconel 600 25CR 20NI Aluminum Grey Cast Iron Brass Wrought Iron 70CU 30NI
-325 -2.37 .-3.85 -2.22 -2.04 -2.62 -3.00 -4.69 -3.88 -2.70 -3.15
-300 -2.24 -3.62 -2.10 -1.93 -2.50 -2.83 -4.43 -3.64 -2.55 -2.98
-275 -2.11 -3.40 -1.98 -1.81 -2.38 -2.66 -4.17 -3.41 -2.41 -2.81
-250 -1.98 -3.17 -1.85 -1.70 -2.26 -2.30 -2.49 -3.91 -3.18 -2.26 -2.63
-225 -1.84 -2.95 -1.73 -1.58 -2.14 -2.17 -2.32 -3.66 -2.94 -2.11 -2.46
-200 -1.71 -2.72 -1.16 -1.47 -2.03 -2.04 -2.15 -2.04 -2.71 -1.96 -2.29
-175 -1.58 -2.49 -1.49 -1.35 -1.91 -1.87 -1.98 -3.14 -2.47 -1.82 -2.12
-150 -1.45 -2.27 -1.37 -1.24 -1.79 .-1.70 -1.81 .-2.88 -2.24 -1.67 -1.95
-125 -1.30 -2.01 -1.23 -1.12 -1.59 -1.54 -1.60 -2.58 -2.00 -1.49 -1.76
-10 -1.15 -1.75 -1.09 -0.99 -1.38 -1.37 -1.39 -2.27 -1.76 -1.32 -1.55
-75 -1.00 -1.50 -0.94 -0.86 -1.18 -1.17 -1.19 -1.97 -1.53 -1.14 -1.34
-50 -0.84 -1.24 -0.78 -0.72 -0.98 -0.97 -0.98 -1.67 -1.29 -0.96 -1.12
-25 -0.67 -0.98 -0.63 -0.58 -0.77 -0.76 -0.76 -1.32 -1.03 -0.77 -0.90
0 -0.50 -0.72 -0.47 -0.43 -0.57 -0.56 -0.57 -0.97 -0.75 -0.57 -0.67
25 -0.32 -0.46 -0.30 -0.27 -0.37 -0.36 -0.37 -0.63 -0.48 -0.37 -0.43
50 0.14 -0.21 -0.14 -0.12 -0.16 -0.16 -0.16 -0.28 -0.22 -0.17 -0.19
70 29.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
100 27.99 0.22 0.33 0.21 0.19 0.27 0.26 0.27 0.45 0.21 0.34 0.25 0.30
125 25.88 0.41 0.61 0.39 0.35 0.50 0.48 0.50 0.83 0.38 0.63 0.47 0.55
150 22.16 0.60 0.89 0.57 0.52 0.74 0.70 0.73 1.22 0.55 0.92 0.69 0.81
175 16.03 0.80 1.17 0.75 0.69 0.98 0.93 0.97 1.61 0.73 1.22 0.91 1.07
200 6.45 1.00 1.46 0.94 0.86 1.22 1.15 1.2 2.00 0.90 1.52 1.14 1.33
225 4 1.20 1.74 1.13 1.03 1.47 1.39 1.45 2.42 1.08 1.83 1.37 1.60
250 15 1.40 2.03 1.32 1.21 1.71 1.63 1.69 2.83 1.26 2.13 1.60 1.86
275 31 1.61 2.32 1.51 1.38 1.96 1.86 1.94 3.25 1.45 2.45 1.83 2.13
300 52 1.82 2.61 1.71 0.56 2.21 2.10 2.19 3.67 1.64 2.76 2.06 2.40
325 81 2.04 2.91 1.91 1.74 2.47 2.34 2.44 4.09 1.83 3.08 2.30 2.68
350 119 2.25 3.20 2.11 1.93 2.72 2.57 2.69 4.52 2.02 3.40 2.54 2.96
375 176 2.48 3.50 2.31 2.11 2.98 2.81 2.94 4.95 2.22 3.72 2.77 3.24
400 232 2.70 3.80 2.50 2.30 3.25 3.05 3.20 5.39 2.42 4.05 3.01 3.52
425 312 2.93 4.10 2.72 2.49 3.51 3.30 3.46 5.83 2.62 4.38 3.25
450 408 3.16 4.40 2.93 2.68 3.78 3.54 3.72 6.27 2.82 4.72 3.50
475 525 3.39 4.70 3.14 2.88 4.06 3.79 398 6.72 3.03 5.06 3.74
500 665 3.62 5.01 3.35 3.08 4.33 4.03 4.24 7.17 3.24 5.40 3.99
525 835 3.86 5.31 3.57 3.28 4.61 4.28 4.51 7.63 3.45 5.75 4.24
550 1035 4.10 5.62 3.79 3.48 4.89 4.53 4.78 8.09 3.67 6.09 4.50
575 1260 4.35 5.93 4.01 3.69 5.17 4.77 5.05 8.56 3.89 6.44 4.75
600 1528 4.60 6.24 4.24 3.90 5.46 5.02 5.33 9.03 4.11 6.80 5.01
625 1838 4.85 6.56 4.46 4.10 5.75 5.29 5.60 4.34 7.16 5.27
650 2185 5.11 6.87 4.68 4.31 6.04 5.54 5.88 4.57 7.52 5.53

(1) Saturated steam vacuum in HG: Below 212°F pressure, Above 212°F PSIG