Plate Flanges Supplier & Stockist in India

Flat, hub-less flanges cut from steel plate, slipped over the pipe and welded on both sides. The most economical flange for water, air, drainage, ventilation and fabrication, in standard drillings or to your drawing.

Flat face, no hubIS 2062 / A516 / SS plateTable D / E / F / HIS 6392 / PN 6, 10, 16ASA 150 drillingCustom to drawing
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Plate flange drawing: flat flange with no hub, welded inside and outside to the pipe
A plate flange is a flat slip-on flange with no hub.

The simplest, lowest-cost flange

A plate flange is a flat steel ring with a bore for the pipe and a ring of bolt holes. It slides over the pipe and is fillet-welded on the back and inside the face. Without a hub, it uses less steel and machining than any other flange, which is why it is the everyday MS flange on water, air and fabrication work.

Plate flanges are made in standard drillings such as Table E, IS 6392 and ASA 150, and can also be profile-cut and drilled to your drawing for ducting, blowers, tanks and machinery.

The simplest, lowest-cost flange: specification summary
MaterialsMS IS 2062 E250; ASTM A36; ASTM A516 Gr 60 / 70; stainless ASTM A240 304 / 316
DrillingBS 10 Table D, E, F, H; IS 6392; EN 1092-1 PN 6 / 10 / 16 (Type 01); ASME B16.5 Class 150 drilling
Sizes½" (15 NB) to 24" (600 NB) standard; larger and non-standard to drawing
FacingFlat face as standard; raised face machined on request
ThicknessAs per the table or PN, or as per your drawing
FinishBlack, primer painted or hot-dip galvanized

Plate, hubbed slip-on or forged flange?

Plate flangeHubbed slip-onForged weld neck
Made fromSteel plateForgingForging
HubNoneShort hubLong tapered neck
CostLowestModerateHighest
Pressure serviceLowLow to moderateHigh
Typical useWater, air, drainage, ductingUtility and process linesSteam, hydrocarbons, cyclic service

See slip-on flanges and weld neck flanges for the forged options.

Plate flanges made to your drawing

Many fabrication jobs need flanges that are not in any table: blower and fan outlets, ducting, chimney sections, tank manholes, machine mounting rings. Send a drawing or sketch with outside diameter, inside diameter, PCD, number and size of holes, thickness and material. We will confirm the price and lead time. For repeat jobs, keep the drawing number on the order so every batch matches.

Do not thin the flange

A plate flange that is thinner than its table calls for will bend when bolted, and the gasket will leak. If you are replacing an old flange, measure its thickness as well as its OD and PCD. For pressure lines, use the thickness given by the drilling table or PN rating.

Where plate flanges are used

  • Water supply, pumping and irrigation lines
  • Fire hydrant and sprinkler mains
  • Compressed air and vacuum lines
  • Ventilation, ducting, blower and exhaust connections
  • Tank nozzles and general fabrication

Pipes and fittings to go with plate flanges

Pipe or fittingUse it with these flanges when…
MS round pipesyou are fabricating with black MS pipe
ERW pipes (IS 1239 / IS 3589)the line uses light, medium or heavy class pipe
GI pipesyou need galvanized pipe with galvanized flanges
MS flanges (all types)you also need blind or slip-on MS flanges
Have a drawing or an old flange to match?Send OD, PCD, holes and thickness, or a photo with a tape measure.
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Flange types we supply

Each page covers materials, standards, sizes and where that flange fits. All flanges can be quoted with matching pipes and fittings.

MS Flanges drawingMS FlangesIS 2062 mild steel, Table E / IS 6392 / ASA 150 Stainless Steel Flanges drawingStainless Steel FlangesSS 304, 304L, 316, 316L to ASME B16.5 Carbon Steel Flanges drawingCarbon Steel FlangesForged ASTM A105, A350 LF2, Class 150 to 1500 Slip-On Flanges (SORF) drawingSlip-On Flanges (SORF)Pipe slides in, two fillet welds Weld Neck Flanges (WNRF) drawingWeld Neck Flanges (WNRF)Butt-welded, bored to pipe schedule Blind Flanges drawingBlind FlangesClose pipe ends, nozzles and test points Socket Weld Flanges drawingSocket Weld FlangesSmall-bore, high-pressure lines Threaded Flanges drawingThreaded FlangesNPT / BSP, no welding, GI lines Lap Joint Flanges drawingLap Joint FlangesLoose flange with stub end Plate Flanges drawingPlate FlangesFlat flanges, Table D/E/F/H, custom Flange Size & Class Chart drawingFlange Size & Class ChartASME B16.5 OD, PCD, bolts and ratings
FAQ

Frequently Asked Questions

A plate flange is a flat, hub-less flange cut from steel plate. It slides over the pipe and is welded on both sides. It is the most economical flange type and is used for low-pressure lines.

A plate flange is a type of slip-on flange without a hub. ASME B16.5 slip-on flanges have a short forged hub; plate flanges do not.

Most Table E flanges sold in India are plate flanges drilled to Table E of the old BS 10 standard. Hubbed and blind versions are also available.

Yes. Send a drawing with OD, ID, PCD, hole count and size, thickness and material, and we will quote the price and lead time.

It depends on the drilling table or PN rating, thickness and material. Plate flanges are intended for low-pressure service; for higher pressure use forged flanges.

Yes, MS plate flanges can be hot-dip galvanized for water and outdoor lines.

Buyer Guides & Tools

Flange Size Chart & Pressure ClassesASME B16.5 OD, PCD, bolts, Class 150 to 2500ERW vs Seamless PipeWhich pipe to use with your flangesPipe & Tube Weight CalculatorMS / SS / GI round, square & rectangularSteel Pipe Buying Guide for IndiaChecklist before you request a quoteSS 304 vs SS 316Choosing the stainless grade
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Get a Flange Quote

Tell us the flange type, size, class or table, material and quantity. We reply on call, WhatsApp or email.

  • MS, carbon steel and stainless steel flanges on one quotation
  • Matching pipes, elbows, tees and reducers from the same order
  • Dispatch from Thane / Panvel to sites across India
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