ISO 9001:2015IBR ApprovedEstablished 1971Full Material Traceability
GroupRequest a quote
IS 6392FlangesTG-DS-039 · Rev. 0 · October 2026

IS 6392 PN 16 Flange Dimensions

This chart gives IS 6392 PN 16 steel pipe flange dimensions in millimetres — outside diameter, thickness, raised face, bolt circle (PCD) and bolting for plate flanges for welding (slip-on), weld neck and blind flanges. IS 6392 is the Indian Standard for steel pipe flanges and is widely specified on Indian boiler, water, refinery and power projects.

Teshi Group manufactures IS 6392 flanges in India alongside its ASME B16.5 and EN 1092-1 range.

Download PDF Request a quoteA4 · Teshi Group document TG-DS-039 · © Teshi Group · controlled document
Weld neck flange dimension drawing showing O, tf, R, X, A, Y and bolt circle WANd1KDCHFlange, raised face — section (not to scale)
Weld neck flange with raised face. Letters correspond to the column headings in the table.

Key to dimensions

D
Outside diameter of flange
A
Pipe outside diameter (hub diameter at the weld end)
C
Flange thickness, excluding raised face unless stated
d1
Raised face diameter
f
Raised face height
K
Bolt circle (pitch circle) diameter
n
Number of bolts
L
Bolt hole diameter
Bolt
Bolt size (metric M or inch diameter)

IS 6392 PN 16 Flange Dimensions — tables

PN 16 (Table 17) — plate flanges for welding (slip-on plate)

PN 16 (Table 17) — plate flanges for welding (slip-on plate)
SizeAPipe ODDFlange ODCFlanged1Raised facefRF heightKBolt circlenBoltsLHole diaBoltSize
1017.2901440260414M12
1521.3951445265414M12
2026.91051658275414M12
2533.71151668285414M12
3242.414016782100418M16
4048.315016883110418M16
5060.3165181023125418M16
6576.1185181223145418M16
8088.9200201383160818M16
100114.3220201583180818M16
125139.7250221883210818M16
150168.3285222123240822M20
175193.7315242423270822M20
200219.13402426832951222M20
2502734052632033551226M24
300323.94602837844101226M24
350355.65203243844701626M24
400406.45803649045251630M27
5005087154461046502033M30
600609.68405272557702036M33
700711.29105879558402436M33
800812.810256490059502439M36
900914.41125721000510502839M36
100010161255781115511702842M39
120012201485941330513903248M45

PN 16 (Table 16 weld-neck + Table 20 blind) — thickness

PN 16 (Table 16 weld-neck + Table 20 blind) — thickness
SizeDFlange ODCWeld neckCBlind
10901414
15951414
201051616
251151616
32140—16
401501616
501651818
651851818
802002020
1002202020
1252502222
1502852222
1753152424
200340—24
2504052626
300460—28
350520——
400580—32
500715—56
900112540—
1000125542—

Notes

  • All dimensions are in millimetres.
  • The PN 16 plate-flange table also applies to DN 10–175 at PN 10. Weld-neck flanges share the drilling and raised face of the plate table.
  • IS 6392 drilling follows the ISO/DIN metric series, so IS 6392 flanges generally mate with EN 1092-1 / DIN flanges of the same PN — check the raised face and thickness for your flange type.
  • Values are nominal, compiled from published copies of the standard; blank cells (—) are values not confirmed from the sources available. Verify against the current edition before design, purchase or fabrication.

Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.

Dimension finder

Pick a product, standard and size — or just type — to see every dimension and download a watermarked PDF for that one size.

IS 6392 PN 16 Flange Dimensions — size by size

Every size has its own page with a drawing, mm and inch values and a one-size PDF.

Equivalent and related standards to IS 6392 PN 16 Flange Dimensions

All equivalents
RegionStandardRelationship
EuropeEN 1092-1 PN 16Closely related European PN tables; check drilling and thickness
UKBS 4504 PN 16 (withdrawn)Former British PN flanges
ChinaGB/T 9124.1 / HG/T 20592 PN 16Chinese PN flanges (European system)
InternationalISO 7005-1 PN 16ISO steel flanges, PN series

Teshi Group manufactures flanges and fittings to all of these standards on request, including Chinese GB / HG / SH and European EN dimensions for export projects. Always confirm bolting, facing and thickness when substituting one standard for another.

FAQ

IS 6392 PN 16 Flange dimensions: common questions

What are the dimensions of a DN 100 IS 6392 PN 16 flange?

A DN 100 IS 6392 PN 16 plate flange has an outside diameter of 220 mm, a bolt circle of 180 mm and 8 holes of 18 mm for M16 bolts.

Is IS 6392 the same as EN 1092-1 / DIN?

The bolt circles and drilling of IS 6392 follow the same metric PN series as DIN and EN 1092-1, so most sizes mate; flange thickness and raised-face details can differ, so check the table for the flange type you need.

Does Teshi Group manufacture IS 6392 flanges?

Teshi Group manufactures steel flanges in India to IS 6392 drilling — weld neck, slip-on, plate and blind — in carbon, alloy, stainless, duplex and nickel-alloy grades, with EN 10204 3.1 certificates.

Ready to build to spec?

Share your drawing, bill of materials or technical requirements with the Teshi team.

CallWhatsAppGet quote