Flange Weight Calculator and MS Blind/ Weld Neck Flange Weight Chart

Check Mild Steel Flange weight calculator in kg

Flanges weight calculator

Flat face flange Blind flange (smooth sealing surface)

Outside diameter: mm 1px

Inside diameter: mm 1px

Sheet thickness: mm 1px

Number of drill holes: 1px

Drill hole diameter: mm 1px

Chamfer (inside 45 deg.): mm 1px

Finished Part Weight : 0 kg

Flange Weight Calculator Formula

V = Π X (OD² - ID²) / 4 X T

Weight (W) = V X ρ

Blind Flange Weight Chart in Kg

NPS in inch	Class 150	Class 300	Class 400	Class 600
NPS in inch	Class 150	Class 300	Class 400	Class 600
1/2	.9	.9	.9	1.4
3/4	.9	1.4	1.4	1.8
1	.9	1.8	1.8	1.8
1¼	1.4	2.7	2.7	2.7
1½	1.8	3.2	3.6	3.6
2	2.3	3.6	4.5	4.5
2½	3.2	5.4	6.8	6.8
3	4.1	7.2	9	9
3½	5.9	9.5	13	13
4	7.7	12.6	14.9	18.5
5	9	16.7	19.8	3 .6
6	12.2	22.5	27.5	38.7
8	21.2	36.5	45	63
10	31.5	55.8	69.8	103
12	55.4	83.3	101.7	132.8
14	63	112.5	139.5	17 .1
16	81	141.8	179.1	237.2
18	99	186.3	225.9	299.3
20	128.3	231.8	279.5	384.8
22	159.8	288	324	450
24	193.5	360	421.2	562.5

Weld Neck Flange Weight in Kg

NPS	Class 150	Class 300	Class 400	Class 600
1/2	.9	.9	1.4	1.4
3/4	.9	1.4	1.6	1.8
1	1.4	1.8	1.8	1.8
1¼	1.4	2.3	2	2.7
1½	1.8	3.2	3.6	3.6
2	2.7	4.1	4.5	5.4
2½	4.5	5.4	6.3	8.1
3	5.2	8.1	8.1	1 .4
3½	5.4	9	11.7	11.7
4	7.4	11.9	15.8	18.9
5	9.5	16.2	19.4	3 .6
6	11.7	2 .3	25.7	36.5
8	18.9	31.1	4 .1	54
10	24.3	45	56.3	85.5
12	39.6	63.9	78.8	101.7
14	51.3	92.7	104.9	156.2
16	63	112.5	132.8	216.5
18	74.3	144	162	249.8
20	88.7	180	20 .3	31 .5
22	101.3	209.3	227.3	324
24	12 .6	261	288	439.7

Sizes and Weight Chart

Steel Weight Calculator

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Tools & Downloads

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