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IS 6392FlangesTG-DS-038 · Rev. 0 · October 2026

IS 6392 PN 10 Flange Dimensions

This chart gives IS 6392 PN 10 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-038 · © 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
N
Neck / hub diameter at base
H
Length through hub / neck length
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 10 Flange Dimensions — tables

PN 10 (Table 11) — plate flanges for welding (slip-on plate)

PN 10 (Table 11) — plate flanges for welding (slip-on plate)
SizeAPipe ODDFlange ODCFlanged1Raised facefRF heightKBolt circlenBoltsLHole diaBoltSize
200219.1340242683295822M20
2502733952632033501222M20
300323.94452637044001222M20
350355.65052843044601622M20
400406.45653248245151626M24
5005086703858546202026M24
600609.67804268557252030M27
700711.28954680058402430M27
800812.810155290559502433M30
900914.41115561005510502833M30
100010161230621110511602836M33
120012201455741330513803239M36

PN 10 (Table 10 weld-neck + Table 14 blind) — thickness, neck and drilling

PN 10 (Table 10 weld-neck + Table 14 blind) — thickness, neck and drilling
SizeAPipe ODDFlange ODCWeld neckHWN lengthNHub / neck diad1Raised facefRF heightKBolt circlenBoltsLHole diaBoltSizeCBlind
200219.134024—2352683295822M2024
250273395266829232033501222M2026
300323.9445——34437044001222M2026
350355.65052668—43044601622M2026
400406.45652672—48245151626M2426
500508670287554258546202026M2428
600609.6780288064268557252030M27—
700711.2895308074580058402430M27—
800812.81015329085090559502433M30—
900914.4111534959501005510502833M30—
100010161230349510521110511602836M33—
1200122014553911512551330513803239M36—
1400142016754212014601535515903642M39—
160016201915—13016651760518204048M45—
18001820211550—18681960520204448M45—
2000202023255415020722170522304848M45—

Notes

  • All dimensions are in millimetres.
  • The PN 10 tables start at DN 200; for DN 10–175 IS 6392 refers to the PN 16 dimensions.
  • 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 10 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 10 Flange Dimensions

All equivalents
RegionStandardRelationship
EuropeEN 1092-1 PN 10Closely related European PN tables; check drilling and thickness
UKBS 4504 PN 10 (withdrawn)Former British PN flanges
ChinaGB/T 9124.1 / HG/T 20592 PN 10Chinese PN flanges (European system)
InternationalISO 7005-1 PN 10ISO 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 10 Flange dimensions: common questions

What are the dimensions of a DN 200 IS 6392 PN 10 flange?

A DN 200 IS 6392 PN 10 plate flange has an outside diameter of 340 mm, a bolt circle of 295 mm and 8 holes of 22 mm for M20 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.

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