Material
Temperature (1)
Dead Load Stress
psi(3)

Dead Load Stress Plus
Frictional Stress, psi(3)
°F
°C
Carbon Steel (A285 Gr C) 800 427 12400 24800
Carbon Steel (Alloy A242 Type 1/COR-TEN A) 800 427 23500 47000
Carbon Steel (Alloy A242 Type 2/COR-TEN B) 800 427 18750 37500
18 Cr - 8 Ni (A240, A167 Type 304H) (4) 1000 538 12670 12670
1100 593 11670 11670
1200 649 7650 11330
1300 704 4725 9450
1400 760 2950 5900
1500 816 1805 3610
Ni - Fe - Cr (B-409 Alloy 800HT) 1200 649 8750 17500
1300 704 5500 11000
1400 760 7000 14000
1500 816 2600 5200
1600 871 1750 3500
1700 927 950 1900
1800 982 600 1200
21 Cr - 11 Ni - 1.5 Si
(A240 RA 253 - MA)
1100 593 9250 18500
1200 649 5225 10450
1300 704 3415 8830
1400 760 2230 4460
1500 816 1455 2910
1600 871 950 1900
1700 927 620 1240
1800 982 405 810
1900 1038 265 530
2000 1093 175

350

Notes:

  1. For intermediate temperatures, allowable stress may be obtained from a smooth curve through the data points
  2. A casting factor is not applicable
  3. 1 psi = 6.9 kPa
  4. Data are partially based on ultimate tensile or yield strength
  5. Unless otherwise noted, data are based on creep or rupture criteria in API STD 560