Pressure-Temperature Ratings For Inconel 600 Flanges

Inconel 600 flanges are forged flanges made from Inconel 600 forgings in accordance with ASTM B564. Inconel 600 is a nickel-chromium-iron alloy which has a nominal designation 72Ni-15Cr-8Fe as well as UNS N06600. These flanges(also called “Alloy 600 flanges”) are widely used in oil & gas projects and chemical processing industry due to its excellent resistance to oxidation at high temperatures and resistance to cracking corrosion and caustic corrosion. ASME B16.5 stipulates the pressure-temperature ratings for Inconel 600 flanges which should be furnished in the heat-treatment condition of anneal.

Temp., °CInconel 600 Flanges Working Pressures by Classes, bar
150 30040060090015002500
-29 ~ 3820.051.768.9103.4155.1258.6430.9
5019.551.768.9103.4155.1258.6430.9
10017.751.568.7103.0154.6257.6429.4
15015.850.366.8100.3150.6250.8418.2
20013.848.664.897.2145.8243.4405.4
25012.146.3061.792.7139.0231.8386.2
30010.242.957.085.7128.6214.4357.1
3259.341.455.082.6124.0206.6344.3
3508.440.353.680.4120.7201.1335.3
3757.438.951.677.6116.5194.1323.2
4006.536.548.973.3109.8183.1304.9
4255.535.246.570.0105.1175.1291.6
4504.633.745.167.7101.4169.0281.8
4753.731.742.363.495.1158.2263.9
5002.828.237.656.584.7140.9235.0
5381.416.522.133.149.682.7137.9
550-13.918.627.941.869.7116.2
575-9.412.618.928.347.278.6
600-6.68.913.319.933.255.3
625-5.16.810.315.425.742.8
650-4.76.39.514.223.639.4
Inconel 600 WN RF 2" 150LB SCH80
Inconel 600 Weld Neck Flange RF 2″ 150LB SCH80 supplied to US.

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