Pressure Temperature Rating as per ASME B16.34

A 182 F 304- A 351 CF8 - A 351 CF3

°C

Working pressure (bar) by classes

150

300

600

800

900

1500

2500

-29  -3819.049.699.3132.4148.9248.2413.7
9316.241.482.7110.3124.1206.8344.7
14914.136.572.797.2109.3182.0303.4
20412.432.464.886.597.2162.0270.3
26011.730.060.380.390.3150.7251.0
3169.728.657.276.285.8143.1238.6
3438.628.356.275.284.5140.7234.4
3717.627.955.574.183.4138.9231.7
3996.627.654.873.182.4137.2228.9
4275.527.254.572.481.4135.8226.1
4544.526.953.871.480.3134.1223.4
4823.426.553.170.779.3132.4220.6
5102.425.951.768.977.6128.9215.1
5381.422.444.559.366.5111.0185.1
5661.421.442.756.963.8106.5177.2
5931.417.935.547.253.188.6147.9
6211.413.4

26.9

35.840.367.6112.4
6491.410.721.428.632.153.188.6
6771.47.615.220.322.837.963.1
7041.45.911.415.016.928.347.2
7321.44.18.611.412.821.435.5
7601.43.46.69.010.016.527.6
7881.02.44.86.67.211.719.7
8160.71.73.44.54.88.313.8

For welding end. Flanged end ratings terminate at 538°.

A 351 CF3: not be used over 425°C