Applicable temperature range and standards for fastener materials
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I would like to ask everyone: the technical specifications on the quality certificate are ASTM-A193/A194, and the nuts and bolts are made of 35# and 45# materials. What is the maximum operating temperature for them?
It’s probably over 300 degrees; the exact value depends on the specifications
You can directly check the tables in the SHS Petrochemical Inspection, Maintenance, and Repair Procedures
Hello, do you know if there are any standards that specify the operating temperatures for 35# and 45# materials?
Are you referring to the SHS 03059-2003 standard?
Bolt fasteners made of this material are recommended for use in conditions of low pressure and moderate temperatures (below 150 degrees is advised).
You can look up SHT3059, SHT3404
Page 64 of 150, 35# with a maximum temperature of 350°C.
The design standards for the equipment in which the fasteners are used should specify the temperature range for their operation.