17-4 PH
17-7 PH
INCONEL 718
INCONEL X-750
Cryogenic 17-4 PH
Cryogenic 17-7 PH
Cryogenic Carpenter 455
Light Duty 17-4 PH
Light Duty 17-7 PH
Light Duty Carpenter 455
Flange Bolting / Cryogenic 17-7 PH
With large temperature differences seen in cryogenic applications, the use of Belleville disc springs can play a significant role in the reduction of leaks. Materials with good cryogenic properties are PH (precipitation hardening) and Carpenter Technology stainless steels.
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(1) Torque values for sizes 1-1/8" and larger are based on the
8-pitch thread series for flanged piping.
Cryogenic 17-7 PH flange bolting is available at 15,000 and 25,000 psi bolt stress.
The material for the part numbers shown is 17-7 PH
Stainless Steel. Other materials available include the following.
• 17-4 PH Stainless Steel
• Carpenter Custom 455
Stainless Steel
Dimensions for other materials vary to achieve proper bolt stress.
