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ASME B16.5 lap joint flanges, Class 600

Every size in the table, in mm, with a 3D model drawn from the same figures. See lap joint flanges for materials, standards and the marking.

3D model

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6" Class 600 lap joint

Key dimensions in mm, ASME B16.5

O
Flange diameter
355
Tf
Flange thickness
47.7
X
Hub diameter
222
B
Bore
171.4
B1
Bore
154.1
Y
Length through hub
67
r
Radius
13
W
Bolt circle (PCD)
292.1
d
Bolt hole diameter
28.6
n
Number of holes
12
kg
Weight, approx.
29.5

Dimensions

Units

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Lap joint flanges, ASME B16.5 Class 600, dimensions in mm
NPSSizeDNNominal sizeOFlange diameterTfFlange thicknessXHub diameterBBoreB1BoreYLength through hubrRadiusWBolt circle (PCD)dBolt hole diameternNumber of holeskgWeight, approx.Enquiry list
159514.33822.915.822366.715.940.8
2011515.94828.220.925382.61941.4
2512517.55434.926.627388.91941.6
3213520.76443.735.129598.41942.1
4015522.3705040.9326114.322.243.1
5016525.48462.552.53781271983.7
6519028.610075.462.7418149.222.285.4
8021031.811791.477.94610168.322.287.3
9023035133104.190.14910184.225.48not listed
10027538.1152116.8102.35411215.925.4815.8
12533044.5189144.4128.26011266.728.6824.5
15035547.7222171.4154.16713292.128.61229.5In the viewer
20042055.6273222.2202.77613349.231.71243
25051063.5343277.4254.611113431.834.91670
30056066.7400328.2304.81171348934.92086
35060569.9432360.2336.51271352738.120100
40068576.2495411.2387.314013603.241.320142
45074582.6546462.3438.11521365444.420175
50081588.9610514.4488.916513723.944.424221
600940101.6718616590.518413838.250.824315

Dimensions in mm, for reference. Tolerances and full requirements as per the applicable standard. Confirm against your specification before ordering.

Source: Shiv Shakti Machine Tools Flange Catalogue, edition 2026 (draft), page 10, weights page 15. “–” means the catalogue lists no value.

[CONFIRM: table checked and signed off by the owners (unverified)]