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Pressure-Temperature Ratings for Monel 400 Flanges

Monel 400 flanges manufactured to ASME B16.5 are usually made from two forms of raw material: ASTM B564 UNS N04400 forgings or ASTM B127 UNS N04400 plates. According to the standard, the pressure-temperature ratings can be furnished in two unit systems: ISO and US customary.

ASTM B564 Monel 400 flanges, slip on, Class 150 RF, ASME B16.5

ASTM B564 Monel 400 flanges, slip on, Class 150 RF, ASME B16.5

Pressure-Temperature Ratings for Monel 400: ISO Unit

Temp. °CClass 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-29~3815.941.455.282.7124.1206.8344.7
5015.440.253.780.5120.7201.2335.3
10013.835.947.971.9107.8179.7299.5
15012.933.745.067.5101.2168.7281.1
20012.532.743.665.498.1163.5272.4
25012.132.643.565.297.8163.0271.7
30010.232.643.565.297.8163.0271.7
3259.332.643.565.297.8163.0271.7
3508.432.643.465.197.7162.8271.3
3757.432.443.264.897.2161.9269.9
4006.532.142.864.296.2160.4267.4
4255.531.642.263.394.9158.2263.6
4504.626.935.953.880.7134.5224.2
4753.720.827.741.562.3103.8173.0
*Working pressures by classes, unit: bar.

Pressure-Temperature Ratings for Monel 400: US Customary Unit

Temp. °FClass 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-20~1002306008001200180030005000
2002005257001050157526304380
300190490655980147024504080
400180475630945142023653940
500170475630945142023653940
600140475630945142023653940
650125475630945142023653940
700110470625940141023503920
75095465620930139523303880
80080460610915137522903820
85065375505755113018853145
9005027536555082513702285
*Working pressures by classes, unit: psig.

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