Tesco Steel & Engineering manufactures plate flanges — flat, circular steel plates (without a hub) drilled with bolt holes and welded to the end of a pipe to form a bolted connection. Effectively a flat slip-on flange, the plate flange is widely used in low-to-moderate pressure piping for water, utility, chemical and process service, and is the standard flange form in European (EN 1092-1), DIN and JIS piping. Made in carbon steel, SS 304/316/321, duplex, alloy steel and exotic alloys to ASME B16.5, EN 1092-1, DIN and JIS. NPS 1/2″ to 56″, Class 150 to 9000, PN1 to PN400. ISO 9001:2015 certified. Made in India.
Carbon Steel Plate Flange
Stainless Steel Plate Flange
Tesco Steel & Engineering manufactures plate flanges in the full range of materials and standards. Explore related flange types such as slip-on flanges, blind flanges, weld neck flanges, and the flange dimension charts.
| Plate Flanges are available in the following specifications: | |
|---|---|
| Size | 1/2″ NB to 56″ NB (DN 15 to DN 1400) |
| Class / Rating | 150#, 300#, 3000#, 6000#, 9000# |
| Pressure Ratings | PN 1 – PN 400 |
| Stainless Steel Plate Flanges | ASTM A182 F304 / 304H / 304L / 316 / 316H / 316L / 316Ti, 309, 310, 317L, 321, 347, 904L |
| Duplex Steel Plate Flanges | ASTM A182 F51, F53, F55 |
| Alloy Steel Plate Flanges | ASTM A182 F5, F9, F11, F21, F22 & F91 |
| Carbon Steel Plate Flanges | ASTM A105 |
| Low Temp. Carbon Steel (LTCS) Plate Flanges | A350 LF2 |
| Copper Nickel (Cu-Ni) Plate Flanges | C70600 (90/10), C71500 (70/30), C71640 |
| Nickel Plate Flanges | UNS N02200, UNS N02201 |
| Monel Plate Flanges | UNS N04400, UNS N05500, Alloy 20 |
| Inconel Plate Flanges | UNS N06600, UNS N06601, UNS N06625, UNS N08800, UNS N08810, UNS N08825 |
| Hastelloy Plate Flanges | UNS N10276, UNS N06022, UNS N10665, UNS N06455 |
| Titanium Plate Flanges | Gr. 1, Gr. 2, Gr. 3, DTH 3.7035, DTH 3.7055 |
| Other Services | Hot Dip Galvanizing (GI) · Sand Blasting · Shot Peening · Epoxy Coating · FBE Coating |
A plate flange is a flat, circular disc welded or screwed onto the end of a pipe or fitting to create a tight, bolted seal. They are commonly used in oil & gas, petrochemical and water-treatment systems where moderate pressure and temperature are present. Plate flanges are available in different diameters and thicknesses to suit a range of pipe sizes and pressure ratings, and are typically made from carbon steel, stainless steel or alloy steel.
The most common — affordable, durable and easy to work with. Used in low-pressure applications where corrosion resistance is not a primary concern (A105).
Highly corrosion-resistant for food & beverage, pharma and water treatment; withstands high temperature and pressure (304/316/321). Costlier than carbon steel.
For high-pressure, high-temperature and harsh environments — superior durability and strength (F11/F22/F91). More expensive than carbon steel.
Select a pressure rating below for its detailed plate-flange dimension table — outside diameter, bolt-circle diameter, number and size of bolt holes, and plate thickness:
| JIS 5K Plate Flange → | JIS 10K Plate Flange → |
| JIS 16K Plate Flange → | JIS 20K Plate Flange → |
| JIS 30K Plate Flange → | JIS 40K Plate Flange → |
| JIS 63K Plate Flange → |
EN 1092-1 (PN2.5–PN100), DIN 2573/2576/2501/2502/2503/2543, JIS B2220 (5K–63K) and ASME B16.5 / B16.47 dimensions.
Carbon steel, SS 304/316/321, Duplex, alloy steel, Monel, Inconel, Hastelloy, Titanium and Copper Nickel.
EN 10204 3.1 mill test reports, heat/lot traceability, PMI and third-party inspection on request.
Standard items held in stock for fast delivery and exported worldwide with full documentation.
| Industry | Typical Application |
|---|---|
| Oil & Gas | Pipeline and utility piping connections |
| Chemical Processing | Process & secondary lines, equipment connections |
| Water & Wastewater | Potable water mains, treatment plant piping |
| Food & Beverage | Process lines and hygienic equipment connections (stainless) |
| Pharmaceutical | Manufacturing process piping connections |
| Power & General | Pumps, valves, heat exchangers & flanged equipment |
Plate-flange prices depend on standard/rating, size, material, plate thickness and quantity. Tesco Steel & Engineering offers competitive factory-direct pricing backed by ISO-certified quality and keeps ready stock of standard items for fast delivery and export. Click Ask for Quote or message us on WhatsApp at +91 92233 66922 for an updated price list with stock availability against your requirement.
Q1. What is a plate flange?
A plate flange is a flat, circular steel plate (without a hub) drilled with bolt holes and welded to the end of a pipe to create a bolted connection. It is essentially a flat slip-on flange, widely used in low-to-moderate pressure piping for water, utility, chemical and process service, and is common in European (EN 1092-1), DIN and JIS standards.
Q2. What is the difference between a plate flange and a slip-on flange?
A plate flange is a flat plate with no raised hub, while a slip-on flange (ASME B16.5) has a short hub for added strength. Plate flanges are simpler and lower cost, used mainly in EN/DIN/JIS low-pressure piping; hubbed slip-on flanges carry higher pressure ratings. Both are slid over the pipe and fillet-welded.
Q3. What materials are plate flanges made from?
Plate flanges are made from carbon steel (A105), stainless steel (ASTM A182 F304/316/321/347/904L), duplex (F51/F53/F55), alloy steel (F5/F9/F11/F22/F91), LTCS (A350 LF2), Monel, Inconel, Hastelloy, Titanium and Copper Nickel. Carbon steel suits low-pressure utility; stainless and alloys are used for corrosive and higher-temperature service.
Q4. What standards cover plate flanges?
Plate flanges are made to EN 1092-1 (Type 01, PN2.5 to PN100), DIN 2573/2576/2501/2502/2503/2543, JIS B2220 (5K to 63K), and ASME B16.5 / B16.47 dimensional standards. Tesco supplies full dimension tables for each pressure rating.
Q5. What pressure ratings are available for plate flanges?
Plate flanges are available in EN/DIN ratings PN2.5, PN6, PN10, PN16, PN25, PN40, PN63/PN64 and PN100, JIS ratings 5K to 63K, and ASME classes 150 through 9000 — covering PN1 to PN400 overall.
Q6. Where are plate flanges used?
Plate flanges are used in oil & gas, chemical processing, water and wastewater treatment, food & beverage and pharmaceutical piping — connecting pipes, valves, pumps, heat exchangers and other equipment in low-to-moderate pressure systems.
Q7. How is a plate flange attached to the pipe?
A plate flange is slipped over the pipe end and secured with fillet welds — typically one external and one internal fillet weld — so the flat plate seats square to the pipe axis and the bolt holes straddle the centreline. The flat face mates against a gasket and the bolted flange of the adjoining equipment.
Q8. Are plate flanges supplied with material test certificates?
Yes. Every plate flange is supplied with EN 10204 3.1 (or 3.2) mill test certificates with heat/lot traceability, dimensional inspection, and PMI and third-party inspection on request.
Countries We Export Plate Flanges To: Kuwait, UAE, Germany, Saudi Arabia, West Africa, Dubai, Iraq, Congo, Mexico, Bahrain, Canada, Philippines, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Nigeria, Muscat, Russia, Vietnam, Angola, Indonesia, UK, Yemen, Italy, United States, Venezuela, Kazakhstan, Algeria, Jordan, Colombia, Libya, China, Peru, Iran, South Africa, Afghanistan, Israel, Zambia, Tanzania, Somalia, Pakistan.
Domestic Supply — Plate Flanges in India: Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Thane, Bhopal, Pimpri-Chinchwad, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Agra, Andhra Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Odisha, Punjab, Rajasthan, Tamil Nadu, Telangana, Uttar Pradesh, Uttarakhand, West Bengal.