Welcome to the Next Generation of Sealing ... - CE Franklin Ltd.
Welcome to the Next Generation of Sealing ... - CE Franklin Ltd.
Welcome to the Next Generation of Sealing ... - CE Franklin Ltd.
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Bolting Data<br />
SPEC<br />
GRADE<br />
Design Stress Values (ksi) vs Temperature<br />
TEMPERATURE °F/°C<br />
650/345 700/370 750/400 800/425 850/455 900/480 950/510 1000/540 1050/565 1100/595<br />
B6 21.2 21.2 21.2 19.6 15.6 12.0<br />
B7 * 25.0 25.0 23.6 21.0 17.0 12.5 8.5 4.5<br />
ASTM<br />
A193 B7M * 20.0 20.0 20.0 18.5 16.2 12.5 8.5 4.5<br />
B8-CL1 11.2 11.0 10.8 10.5 10.3 10.1 9.9 9.7 9.5<br />
B16 25.0 25.0 25.0 25.0 23.5 20.5 16.0 11.0 6.3 2.8<br />
ASTM L7 20.0 20.0 20.0 20.0 16.2 12.5 8.5 4.5<br />
A320<br />
ASTM 660 20.2 20.1 20.0 19.9 19.9 19.9 19.8 19.8<br />
A453<br />
* For Bolt Diameters ≤ 2-1/2”<br />
Please note that <strong>the</strong> above values are for reference purposes only. Values are extracted from ASME or BS 5500.<br />
Recommended Working Temperatures<br />
<strong>of</strong> Bolt Materials<br />
Stress Retention Properties<br />
<strong>of</strong> Bolt Materials<br />
MATERIAL<br />
TEMPERATURE °F/°C<br />
MIN.<br />
MAX.<br />
Carbon Steel -20/-30 570/300<br />
B7 -20/-30/ 750/400<br />
L7 -150/-100 750/400<br />
B6 -20/-30 950/510<br />
B8 -325/-200 1075/580<br />
B16 -20/-30 975/525<br />
B17/660 -20/-30 1200/650<br />
Residual Stress (% <strong>of</strong> initial stress)<br />
100<br />
75<br />
50<br />
25<br />
0<br />
0<br />
B8<br />
Carbon Steel<br />
B8M<br />
212 392 572 752 932 1112 1292 1472<br />
B7<br />
B16<br />
B17/660<br />
B80A<br />
B80A -420/-250 1400/760<br />
Temperature °F<br />
Inconel 625 -420/-250 1500/815<br />
Inconel 718 -420/-250 1400/760<br />
Stress relaxation behavior <strong>of</strong> various bolting materials showing<br />
percentage <strong>of</strong> initial stress retained at temperature<br />
<strong>Welcome</strong> <strong>to</strong> <strong>the</strong> <strong>Next</strong> <strong>Generation</strong> <strong>of</strong> <strong>Sealing</strong> Technology<br />
®<br />
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