Shiv Shakti Machine ToolsFlange manufacturer and trader, home

ASME B16.5 threaded flanges, Class 600

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

3D model

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6" Class 600 threaded

Key dimensions in mm, ASME B16.5

O
Flange diameter
355
Tf
Flange thickness
47.7
X
Hub diameter
222
Y
Length through hub
74
T
Thread length
51
Q
Counterbore
171.4
R
Raised face diameter
215.9
Tr
Raised face height
7
W
Bolt circle (PCD)
292.1
d
Bolt hole diameter
28.6
n
Number of holes
12
kg
Weight, approx.
32

Dimensions

Units

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Threaded flanges, ASME B16.5 Class 600, dimensions in mm
NPSSizeDNNominal sizeOFlange diameterTfFlange thicknessXHub diameterYLength through hubTThread lengthQCounterboreRRaised face diameterTrRaised face heightWBolt circle (PCD)dBolt hole diameternNumber of holeskgWeight, approx.Enquiry list
159514.338291623.634.9766.715.941
2011515.94832162942.9782.61941.6
2512517.554341835.850.8788.91941.8
3213520.764362144.463.5798.41942.6
4015522.370392350.6737114.322.243.3
5016525.484442963.592.171271983.9
6519028.6100483276.2104.87149.222.286
8021031.8117533592.21277168.322.287.4
90230351335640104.9139.77184.225.48not listed
10027538.11526142117.6157.27215.925.4817
12533044.51896748144.4185.77266.728.6826.5
15035547.72227451171.4215.97292.128.61232In the viewer
20042055.62738358222.2269.97349.231.71246
25051063.53439366276.2323.87431.834.91674
30056066.74009970328.6381748934.92090
35060569.943210174360.4412.8752738.120108
40068576.249511378411.2469.97603.241.320150
45074582.654612480462533.4765444.420188
50081588.961013483512.8584.27723.944.424230
600940101.671814793614.4692.27838.250.824325

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)][CONFIRM: whether the flange thickness includes the raised face]