Pressure Temperature Rating as per ASME B16.34

A 182 F1 - A 217 WC1 - A 352 LC1

°C

Working pressure (bar) by classes

150

300

600

800

900

1500

2500

-29  -3818.347.995.8-143.8239.2398.9
9317.946.993.8-140.3234.1390.2
14915.945.290.0-134.8224.8374.7
20413.844.188.3-132.4220.6367.5
26011.742.785.8-128.6214.1357.1
3169.741.783.4-125.1208.6347.5
3438.640.781.0-121.7202.7338.2
3717.639.378.3-117.6195.8326.1
3996.636.573.4-110.0183.4305.4
4275.535.270.0-105.1175.1291.6
4544.533.467.2-100.7167.9279.9
4823.431.062.1-93.1154.8258.2
5102.419.338.6-58.396.9161.7
5381.411.422.8-34.156.994.5
566-------
593-------
621-------
649-------
677-------
704-------
732-------
760-------
788-------
816-------

A 182 F1, A 217 WC1: permissible, but not recommended for prolonged usage above about 454°C

A 351 LC1: not be used over 343°C