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Threaded Flanges Dimensions & Weights (ASME B16.5)

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The article shows the ASME B16.5 dimensions of Threaded Flanges Classes from 150 to 2500 (NPS, ID, OD, Thickness, and bolting details, tolerances) – both in inches and millimeters.

ASME THREADED FLANGE DIMENSIONS & WEIGHTS

The article shows the ASME B16.5 dimensions and weights for threaded flanges.

THREADED FLANGE SIZES IN INCHES

THREADED CLASS 150

Threaded flange dimensions class 150 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″3.50″2.38″1.38″.063″1.19″.62″.38″.56″.62″4
3/4″1.14″3.88″2.75″1.69″.063″1.50″.62″.44″.56″.62″4
1″1.41″4.25″3.12″2.00″.063″1.94″.69″.50″.63″.62″4
1-1/4″1.75″4.62″3.50″2.50″.063″2.31″.81″.56″.75″.62″4
1-1/2″1.99″5.00″3.88″2.88″.063″2.56″.88″.62″.82″.62″4
2″2.50″6.00″4.75″3.62″.063″3.06″1.00″.69″.94″.75″4
2-1/2″3.00″7.00″5.50″4.12″.063″3.56″1.12″.82″1.06″.75″4
3″3.63″7.50″6.00″5.00″.063″4.25″1.19″.88″1.13″.75″4
3-1/2″4.13″8.50″7.00″5.50″.063″4.81″1.25″.88″1.19″.75″8
4″4.63″9.00″7.50″6.19″.063″5.31″1.31″.88″1.25″.75″8
5″5.69″10.00″8.50″7.31″.063″6.44″1.44″.88″1.38″.88″8
6″6.75″11.00″9.50″8.50″.063″7.56″1.56″.94″1.50″.88″8
8″8.75″13.50″11.75″10.62″.063″9.69″1.75″1.06″1.69″.88″8
10″10.88″16.00″14.25″12.75″.063″12.00″1.94″1.13″1.88″1.00″12
12″12.94″19.00″17.00″15.00″.063″14.38″2.19″1.19″2.13″1.00″12
14″14.19″21.00″18.75″16.25″.063″15.75″2.25″1.32″2.19″1.12″12
16″16.19″23.50″21.25″18.50″.063″18.00″2.50″1.38″2.44″1.12″16
18″18.19″25.00″22.75″21.00″.063″19.88″2.69″1.50″2.63″1.25″16
20″20.19″27.50″25.00″23.00″.063″22.00″2.88″1.63″2.83″1.25″20
22″22.19″29.50″27.25″25.25″.063″24.25″3.13″1.75″3.07″1.38″20
24″24.19″32.00″29.50″27.25″.063″26.12″3.25″1.82″3.19″1.38″20

THREADED CLASS 300

Threaded flange dimensions class 300 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″3.75″2.62″1.38″.063″1.50″0.88″0.50″0.82″0.62″4
3/4″1.14″4.62″3.25″1.69″.063″1.88″1.00″.056″0.94″0.75″4
1″1.41″4.88″3.50″2.00″.063″2.12″1.06″0.63″1.00″0.75″4
1-1/4″1.75″5.25″3.88″2.50″.063″2.50″1.06″0.69″1.00″0.75″4
1-1/2″1.99″6.12″4.50″2.88″.063″2.75″1.19″0.75″1.13″0.88″4
2″2.50″6.50″5.00″3.62″.063″3.31″1.31″0.82″1.25″0.75″8
2-1/2″3.00″7.50″5.88″4.12″.063″3.94″1.50″0.94″1.44″0.88″8
3″3.63″8.25″6.62″5.00″.063″4.62″1.69″1.06″1.63″0.88″8
3-1/2″4.13″9.00″7.25″5.50″.063″5.25″1.75″1.13″1.69″0.88″8
4″4.63″10.00″7.88″6.19″.063″5.75″1.88″1.19″1.82″0.88″8
5″5.69″11.00″9.25″7.31″.063″7.00″2.00″1.32″1.94″0.88″8
6″6.75″12.50″10.62″8.50″.063″8.12″2.06″1.38″2.00″0.88″12
8″8.75″15.00″13.00″10.62″.063″10.25″2.44″1.56″2.38″1.00″12
10″10.88″17.50″15.25″12.75″.063″12.62″2.62″1.82″2.56″1.12″16
12″12.94″20.50″17.75″15.00″.063″14.75″2.88″1.94″2.82″1.25″16
14″14.19″23.00″20.25″16.25″.063″16.75″3.00″2.06″2.94″1.25″20
16″16.19″25.50″22.50″18.50″.063″19.00″3.25″2.19″3.19″1.38″20
18″18.19″28.00″24.75″21.00″.063″21.00″3.50″2.32″3.44″1.38″24
20″20.19″30.50″27.00″23.00″.063″23.12″3.75″2.44″3.69″1.38″24
22″22.19″33.00″29.25″25.25″.063″25.25″4.00″2.57″3.94″1.63″24
24″24.19″36.00″32.00″27.25″.063″27.62″4.19″2.69″4.13″1.62″24

THREADED CLASS 400

Threaded flange dimensions class 400 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″3.75″2.62″0.12″.250″1.50″1.13″0.56″0.88″0.62″4
3/4″1.14″4.62″3.25″0.12″.250″1.88″1.25″0.62″1.00″0.75″4
1″1.41″4.88″3.50″0.12″.250″2.12″1.31″0.69″1.06″0.75″4
1-1/4″1.75″5.25″3.88″0.19″.250″2.50″1.37″0.81″1.12″0.75″4
1-1/2″1.99″6.12″4.50″0.25″.250″2.75″1.50″0.88″1.25″0.88″4
2″2.50″6.50″5.00″0.31″.250″3.31″1.69″1.00″1.44″0.75″8
2-1/2″3.00″7.50″5.88″0.31″.250″3.94″1.87″1.12″1.62″0.88″8
3″3.63″8.25″6.62″0.38″.250″4.62″2.06″1.25″1.81″0.88″8
3-1/2″4.13″9.00″7.25″0.38″.250″5.25″2.19″1.38″1.94″1.00″8
4″4.63″10.00″7.88″0.44″.250″5.75″2.25″1.38″2.00″1.00″8
5″5.69″11.00″9.25″0.44″.250″7.00″2.37″1.50″2.12″1.00″8
6″6.75″12.50″10.62″0.50″.250″8.12″2.50″1.62″2.25″1.00″12
8″8.75″15.00″13.00″0.50″.250″10.25″2.94″1.88″2.69″1.12″12
10″10.88″17.50″15.25″0.50″.250″12.62″3.13″2.12″2.88″1.25″16
12″12.94″20.50″17.75″0.50″.250″14.75″3.37″2.25″3.12″1.38″16
14″14.19″23.00″20.25″0.50″.250″16.75″3.56″2.38″3.31″1.38″20
16″16.19″25.50″22.50″0.50″.250″19.00″3.94″2.50″3.69″1.50″20
18″18.19″28.00″24.75″0.50″.250″21.00″4.13″2.62″3.88″1.50″24
20″20.19″30.50″27.00″0.50″.250″23.12″4.25″2.75″4.00″1.62″24
22″22.19″33.00″29.25″0.50″.250″25.25″4.50″2.88″4.25″1.75″24
24″24.19″36.00″32.00″0.50″.250″27.62″4.75″3.00″4.50″1.88″24

THREADED CLASS 600

Threaded flange dimensions class 600 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″3.75″2.62″1.38″.250″1.50″1.13″0.56″0.88″0.62″4
3/4″1.14″4.62″3.25″1.69″.250″1.88″1.25″0.62″1.00″0.75″4
1″1.41″4.88″3.50″2.00″.250″2.12″1.31″0.69″1.06″0.75″4
1-1/4″1.75″5.25″3.88″2.50″.250″2.50″1.37″0.81″1.12″0.75″4
1-1/2″1.99″6.12″4.50″2.88″.250″2.75″1.50″0.88″1.25″0.88″4
2″2.50″6.50″5.00″3.62″.250″3.31″1.69″1.00″1.44″0.75″8
2-1/2″3.00″7.50″5.88″4.12″.250″3.94″1.87″1.12″1.62″0.88″8

THREADED CLASS 900

Threaded flange dimensions class 900 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″4.75″3.25″1.38″.250″1.50″1.50″0.88″1.25″0.88″4
3/4″1.14″5.13″3.50″1.69″.250″1.75″1.63″1.00″1.38″0.88″4
1″1.41″5.88″4.00″2.00″.250″2.06″1.88″1.13″1.63″1.00″4
1-1/4″1.75″6.25″4.38″2.50″.250″2.50″1.88″1.13″1.63″1.00″4
1-1/2″1.99″7.00″4.88″2.88″.250″2.75″2.00″1.25″1.75″1.13″4
2″2.50″8.50″6.50″3.63″.250″4.13″2.50″1.50″2.25″1.00″8
2-1/2″3.00″9.63″7.50″4.13″.250″4.88″2.75″1.63″2.50″1.13″8
3″3.63″9.50″7.50″5.00″.250″5.00″2.38″1.50″2.13″1.00″8
4″4.63″11.50″9.25″6.19″.250″6.25″3.00″1.75″2.75″1.25″8
5″5.69″13.75″11.00″7.31″.250″7.50″3.38″3.00″3.13″1.38″8
6″6.75″15.00″12.50″8.50″.250″9.25″3.63″2.19″3.38″1.25″12
8″8.75″18.50″15.50″10.63″.250″11.75″4.25″2.50″4.00″1.50″12
10″10.88″21.50″18.50″12.75″.250″14.50″4.50″2.75″4.25″1.50″16
12″12.94″24.00″21.00″15.00″.250″16.50″4.88″3.13″4.63″1.50″20
14″14.19″25.25″22.00″16.25″.250″17.75″5.38″3.38″5.13″1.63″20
16″16.19″27.75″24.25″18.50″.250″20.00″5.50″3.50″5.25″1.75″20
18″18.19″31.00″27.00″21.00″.250″22.25″6.25″4.00″6.00″2.00″20
20″20.19″33.75″29.50″23.00″.250″24.50″6.50″4.25″6.25″2.13″20
24″24.19″41.00″35.50″27.25″.250″29.50″8.25″5.50″8.00″2.63″20

THREADED CLASS 1500

Threaded flange dimensions class 1500 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″4.75″3.25″1.38″.250″1.50″1.50″0.88″1.25″0.88″4
3/4″1.14″5.13″3.50″1.69″.250″1.75″1.63″1.00″1.38″0.88″4
1″1.41″5.88″4.00″2.00″.250″2.06″1.88″1.13″1.63″1.00″4
1-1/4″1.75″6.25″4.38″2.50″.250″2.50″1.88″1.13″1.63″1.00″4
1-1/2″1.99″7.00″4.88″2.88″.250″2.75″2.00″1.25″1.75″1.13″4
2″2.50″8.50″6.50″3.63″.250″4.13″2.50″1.50″2.25″1.00″8
2-1/2″3.00″9.63″7.50″4.13″.250″4.88″2.75″1.63″2.50″1.13″8

THREADED CLASS 2500

Threaded flange dimensions class 2500 in inches (ASME B16.5)

Threaded Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.93″5.25″3.50″1.38″.250″1.69″1.81″1.19″1.56″0.88″4
3/4″1.14″5.50″3.75″1.69″.250″2.00″1.94″1.25″1.69″0.88″4
1″1.41″6.25″4.25″2.00″.250″2.25″2.13″1.38″1.88″1.00″4
1-1/4″1.75″7.25″5.13″2.50″.250″2.88″2.31″1.50″2.06″1.13″4
1-1/2″1.99″8.00″5.75″2.88″.250″3.13″2.63″1.75″2.38″1.25″4
2″2.50″9.25″6.75″3.63″.250″3.75″3.00″2.00″2.75″1.13″8
2-1/2″3.00″10.50″7.75″4.13″.250″4.50″3.38″2.25″3.13″1.25″8

 

THREADED FLANGE SIZES IN MILLIMETERS

THREADED CLASS 150

Threaded flange dimensions class 150 in millimeters (ASME B16.5)

Threaded flange dimension

Size
inch
D
mm
X
mm
G
mm
t
mm
T2
mm
Q
mm
1/28930.235.111.215.715.7
3/49938.142.912.715.715.7
110849.350.814.217.517.5
11758.763.515.720.620.6
12765.073.217.522.422.4
215277.791.919.125.425.4
17890.4104.622.428.428.4
3191108.0127.023.930.230.2
216122.2139.723.931.831.8
4229134.9157.223.933.333.3
5254163.6185.723.936.636.6
6279192.0215.925.439.639.6
8343246.1269.728.444.544.5
10406304.8323.930.249.349.3
12483365.3381.031.855.655.6
14533400.1412.835.157.257.2
16597457.2469.936.663.563.5
18635505.0533.439.668.368.3
20699558.8584.242.973.273.2
24813663.4692.247.882.682.6
SizeBolts DrillingBolting Requirements
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/260.5415.71/250.857.2
3/469.9415.71/250.863.5
179.2415.71/257.263.576.2
88.9415.71/257.269.982.6
98.6415.71/263.569.982.6
2120.7419.15/869.982.695.3
139.7419.15/876.288.9101.6
3152.4419.15/876.288.9101.6
177.8819.15/876.288.9101.6
4190.5819.15/876.288.9101.6
5215.9822.43/482.695.3108.0
6241.3822.43/482.6101.6114.3
8298.5822.43/488.9108.0120.7
10362.01225.47/8101.6114.3127.0
12431.81225.47/8101.6120.7133.4
14476.31228.41114.3133.4146.1
16539.81628.41114.3133.4146.1
18577.91631.811/8127.0146.1158.8
20635.02031.811/8139.7158.8171.5
24749.32035.1152.4171.5184.2

THREADED CLASS 300

Threaded flange dimensions class 300 in millimeters (ASME B16.5)

Threaded flange dimension

Size
inch
D
mm
X
mm
G
mm
t
mm
B
mm
T2
mm
Q
mm
1/29538.135.114.223.622.415.7
3/411747.842.915.729.025.415.7
112453.850.817.535.826.917.5
13363.563.519.144.526.920.6
15569.973.220.650.530.222.4
216584.191.922.463.533.328.4
191100.1104.625.476.238.131.8
3210117.3127.028.492.242.931.8
229133.4139.730.2104.944.536.6
4254146.1157.231.8117.647.836.6
5279177.8185.735.1144.550.842.9
6318206.2215.936.6171.552.346.0
8381260.4269.741.1222.362.050.8
10445320.5323.947.8276.466.555.6
12521374.7381.050.8328.773.260.5
14584425.5412.863.8360.476.263.5
16648482.6469.957.2411.282.668.3
18711533.4533.460.5462.088.969.9
20775587.2584.263.5512.895.373.2
24914701.5692.269.9614.4106.482.6
SizeBolts DrillingBolting Requirements
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/266.5415.71/257.263.576.2
3/482.6419.15/863.576.288.9
188.9419.15/863.576.288.9
98.6419.15/869.982.695.3
114.3422.43/476.288.9101.6
2127.0819.15/876.288.9101.6
149.4822.43/482.6101.6114.3
3168.1822.43/488.9108.0120.7
184.2822.43/495.3108.0127.0
4200.2822.43/495.3114.3127.0
5235.0822.43/4108.0120.7133.4
6269.71222.43/4108.0120.7139.7
8330.21225.47/8120.7139.7152.4
10387.41628.41139.7158.8171.5
12450.91631.811/8146.1171.5184.2
14514.42031.811/8158.8177.8190.5
16571.52035.1165.1190.5203.2
18628.72435.1171.5196.9209.6
20685.82435.1184.2203.2222.3
24812.82441.1203.2228.6254.0

THREADED CLASS 600

Threaded flange dimensions class 600 in millimeters (ASME B16.5)

Threaded flange dimension

Size
inch
D
mm
X
mm
G
mm
t
mm
B2
mm
T2
mm
Q
mm
1/29538.135.114.222.422.415.7
3/411747.842.915.727.725.415.7
112453.850.817.534.526.917.5
13363.563.520.643.228.420.6
15569.973.222.449.531.822.4
216584.191.925.462.036.628.4
191100.1104.628.474.741.131.8
3210117.3127.031.890.746.035.1
229133.4139.735.1103.449.339.6
4273152.4157.238.1116.153.841.1
5330189.0185.744.5143.860.547.8
6356222.3215.947.8170.766.550.8
8419273.1269.755.6221.576.257.2
10508342.9323.963.5276.485.965.0
12559400.1381.066.5327.291.969.9
14603431.8412.869.9359.293.773.2
16686495.3469.976.2410.5106.477.7
18743546.1533.482.6461.8117.379.2
20813609.6584.288.9513.1127.082.6
24940717.6692.2101.6616.0139.791.9
SizeBolts DrillingBolting Requirements
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/266.5415.71/276.269.976.2
3/482.6419.15/888.982.688.9
188.9419.15/888.982.688.9
98.6419.15/895.388.995.3
114.3422.43/4108.0101.6108.0
2127.0819.15/8108.0101.6108.0
149.4822.43/4120.7114.3120.7
3168.1822.43/4127.0120.7127.0
184.2825.47/8139.7133.4139.7
4215.9825.47/8146.1139.7146.1
5266.7828.41165.1158.8165.1
6292.11228.41171.5165.1171.5
8349.31231.811/8190.5184.2196.9
10431.81635.1215.9209.6215.9
12489.02035.1222.3215.9222.3
14527.12038.113/8235.0228.6235.0
16603.32041.1254.0247.7254.0
18654.12044.515/8273.1266.7273.1
20723.92444.515/8285.8279.4292.1
24838.22450.817/8330.2323.9336.6

THREADED CLASS 900

Threaded flange dimensions class 900 in millimeters (ASME B16.5)

Threaded flange dimension

Size
inch
D
mm
X
mm
G
mm
t
mm
B
mm
T2
mm
Q
mm
1/212138.135.122.423.631.822.4
3/413044.542.925.429.035.125.4
114952.350.828.435.841.128.4
15963.563.528.444.541.130.2
17869.973.231.850.544.531.8
2216104.691.938.163.557.238.1
244124.0104.641.176.263.547.8
3241127.0127.038.192.253.841.1
4292158.8157.244.5117.669.947.8
5349190.5185.750.8144.579.253.8
6381235.0215.955.6171.585.957.2
8470298.5269.763.5222.3101.663.5
10546368.3323.969.9276.4108.071.4
12610419.1381.079.2328.7117.376.2
14641450.9412.885.9360.4130.082.6
16705508.0469.988.9411.2133.485.9
18787565.2533.4101.6462.0152.488.9
20857622.3584.2108.0512.8158.891.9
241041749.3692.2139.7614.4203.2101.6
SizeBolts DrillingBolting Requirements
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/282.6422.43/4108.0101.6108.0
3/488.9422.43/4114.3108.0114.3
1101.6425.47/8127.0120.7127.0
111.3425.47/8127.0120.7127.0
124.0428.41139.7133.4139.7
2165.1825.47/8146.1139.7146.1
190.5828.41158.8152.4158.8
3190.5825.47/8146.1139.7146.1
4235.0831.811/8171.5165.1171.5
5279.4835.1190.5184.2190.5
6317.51231.811/8190.5184.2196.9
8393.71238.113/8222.3215.9222.3
10469.91638.113/8235.0228.6235.0
12533.42038.113/8254.0247.7254.0
14558.82041.1273.1266.7292.1
16616.02044.515/8285.8279.4298.5
18685.82050.817/8323.9317.5333.6
20749.32053.82349.3342.9362.0
24901.72066.5438.2431.8457.2

TOLERANCE OF THREADED FLANGES

ASME B16.5 provides specific tolerances for threaded flanges to ensure they fit properly, function as intended, and maintain seal integrity under operating conditions. Threaded flanges, designed to connect pipes without welding, have internal threads that match the external threads of the pipe. Here are general tolerance values for key dimensions of threaded flanges according to ASME B16.5, suitable for various sizes and pressure classes:

Diameter of Bolt Circle (P):

Tolerance: ±1.6 mm (±1/16 inch) for flanges through NPS 24, ensuring uniform distribution of bolt loads.

Diameter of Bolt Holes (Q):

Tolerance: Generally oversized relative to the bolt diameter by about +3 mm (1/8 inch), facilitating easier alignment and assembly.

Flange Thickness (T):

Tolerance: Varies but for flanges up to NPS 24, a general guideline is ±3 mm (±1/8 inch). This ensures the flange has adequate strength without unnecessary bulk.

Outside Diameter of Flange (O):

Tolerance: ±1.6 mm (±1/16 inch) for sizes up to NPS 24. This tolerance affects how the flange fits within the system and interfaces with other components.

Thread Dimensions:

The tolerance for the threaded portion of the flange is critical for ensuring a proper fit with the pipe. ASME B1.20.1 provides the standards for pipe threads, and ASME B16.5 references these for threaded flanges to ensure compatibility.

Length Through Hub (Y):

Tolerance: Specific tolerances apply to ensure that the flange aligns correctly with the mating pipe and does not interfere with thread engagement.

Inside Diameter (B):

Tolerance: For threaded flanges, the inside diameter at the base of the thread (or the end of the flange) has a tolerance to ensure that it aligns with the pipe’s outside diameter, facilitating a secure and leak-free connection. The tolerance is typically generous to accommodate the pipe threading.

Facing Finish:

Tolerance: The surface finish of the flange face, which can be critical for seal performance, especially if a gasket is used in conjunction with the threaded connection. Specific Ra values are provided based on the gasket material and type of facing.

Ensuring adherence to these tolerances is crucial for the successful implementation of threaded flanges in a piping system. The precise tolerances enable proper thread engagement, alignment, and sealing capability, which are essential for the operational reliability and safety of the system. For exact tolerance values, especially for specific flange sizes and pressure classes, a direct reference to the ASME B16.5 standard is recommended.

THREADED FLANGES WEIGHTS

THREADED FLANGE WEIGHT in KGS.

The table shows the ASME B16.5 threaded flange (THD) weights in Kgs. by Flange NPS and Class (carbon/alloy steel materials; for higher grades, consider adjusting weight using the delta-specific weight carbon/other grades)

NPSClass
150
Class
300
Class
400
Class
600
Class
900
Class 1500Class 2500
 1/20.50.90.90.92.72.73.2
 3/40.91.41.41.42.72.74.1
10.91.41.61.83.43.65.4
1.4222.34.54.58.1
1.42.92.93.26.36.311.3
22.33.23.64.19.911.317.1
3.64.55.45.913.916.224.8
34.16.36.87.216.221.637.4
5.47.79.59.532.9
45.910.811.716.723.957.2
56.813.913.928.437.459.494.5
68.617.619.83649.574.3145.4
813.526.130.251.877.4117218.3
1019.436.54079.7110.3196.2416.3
1228.851.858.596.8146.7300.2585
1440.574.385116.6180423
1644.199113.9164.7206.6562.5
1858.5126139.5214.2291.2731.3
2074.3146.3170.1275.4356.4922.5
2283.3166.5182.3265.5
2499220.5242.6394.26661271

THREADED FLANGE WEIGHT in LBS.

The table shows the ASME B16.5 threaded flange (THD) weights in Lbs. by Flange NPS and Class (carbon/alloy steel materials; for higher grades, consider adjusting weight using the delta-specific weight carbon/other grades)

CLASS 150Nominal Pipe SizeThreaded Weight in Lbs./unit
½1
¾2
12
3
3
25
8
39
12
413
515
619
830
1043
1264
1490
1698
18130
20165
22185
24220
CLASS 300Nominal Pipe SizeThreaded Weight in Lbs./unit
½2
¾3
13
4.5
6.5
27
10
314
17
424
531
639
858
1081
12115
14165
16220
18280
20325
22370
24490
CLASS 400Nominal Pipe SizeThreaded Weight in Lbs./unit
½2
¾3
13.5
4.5
6.5
28
12
315
21
426
531
644
867
1091
12130
14191
16253
18310
20378
22405
24539
CLASS 600Nominal Pipe SizeThreaded Weight in Lbs./unit
½2
¾3
14
5
7
29
13
316
21
437
563
680
8115
10177
12215
14259
16366
18476
20612
22590
24876
CLASS 900Nominal Pipe SizeThreaded Weight in Lbs./unit
½6
¾6
17.5
10
14
222
31
336
453
583
6110
8172
10245
12326
14400
16459
18647
20792
241480
CLASS 1500Nominal Pipe SizeThreaded Weight in Lbs./unit
½6
¾6
18
10
14
225
36
348
473
5132
6165
8260
10436
12667
14940
161250
181625
202050
242825
CLASS 2500Nominal Pipe SizeThreaded Weight in Lbs./unit
½7
¾9
112
18
25
238
55
383
4127
5210
6323
8485
10925
121300

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About the Author

Projectmaterials Team

Projectmaterials Team

Blog.projectmaterials.com is an online resource dedicated to providing in-depth information, analysis, and educational content related to the fields of project materials management, engineering, and procurement, particularly within the oil & gas, construction, shipbuilding, energy, and renewable energy sectors. It aims to serve professionals and enthusiasts in these industries by offering valuable insights into materials, equipment, and techniques used in various projects, focusing on the selection, application, and maintenance of these resources.Key features of the blog include:* Educational Articles: Comprehensive posts that cover topics ranging from the technical aspects of piping products (pipes, valves, fittings, flanges, gaskets, bolts, instrumentation) to structural steel and process equipment (including oil extraction systems, drilling rigs, wellheads, pumps, compressors, and separation systems). * Industry Insights: Updates on the latest trends, technologies, and regulatory changes affecting the industries covered. * Guides and How-Tos: Practical advice on selecting the right materials and equipment for specific applications, as well as tips on installation, maintenance, and troubleshooting. * Safety and Standards: Information on safety equipment for production sites, risk mitigation procedures, and an overview of relevant industry standards and regulatory frameworks.The website is designed to support the professional development of engineers, procurement specialists, project managers, and other stakeholders involved in project plant businesses, by disseminating critical know-how and best practices. Whether readers are new to the field or seasoned professionals, blog.projectmaterials.com offers resources to enhance their understanding and performance in managing project materials effectively.

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