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 Carpenter 455
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 Carpenter 455 flange bolting is available at 15,000 and 25,000 psi bolt stress.
The material for the part numbers shown is Carpenter Custom 455
Stainless Steel. Other materials available include the following.
• 17-4 PH Stainless Steel
• 17-7 PH Stainless Steel
Dimensions for other materials vary to achieve proper bolt stress.
