DIN Flanges

Highly acclaimed Manufacturer & Supplier Of DIN Flanges in India & Asia

Devdeep Steel Alloys is one of leading and experienced DIN Flanges Manufacturer in India. The DIN Pipe Flange are of German standard which stands for Deutsches Institut. We also make other american standard flanges which are ANSI B 16.5, ANSI B 16.47 series A, Series B, ANSI 16.36 etc. This standard system include Slip On Flange, Threaded Flange, Weld Neck Flange, Blind Flange, lapped joint flange (loose flange). The sizes available are from DN 10 to DN 2000 in pressure ratings PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160. The face type of DIN flange is commonly raised face (RF), but also in flat face (FF) and ring type joint (RTJ). Our inventory include flanges in various material stainless steel, carbon steel, alloy steel & nickel alloys.

Flange Standards: ANSI B16.5 Flanges, ANSI B16.47 Series A & B, DIN Flange, JIS B2220 flange, MSS SP44 Flange, EN1092-1 FLANGES, ASA, API 605, AWWA C207 Flange.

At the present time our expertise staff members are able to provide a extensive range of DIN Flanges. Devdeep Steel  exclusively design and develop flanges as per international quality standards by applying most appropriate accessible technologies. We supply the best quality DIN Flanges which have high tensile strength, durability and robustness. We also make custom sized flanges having different specifications. Customer satisfaction is our topmost priority and hence we use supreme quality raw material to manufacture steel flanges.

Carbon Steel / Stainless Steel DIN Forged Flanges PN6 – PN40 Production Range.

Size: DN10-DN2000

ASTM A105 Carbon Steel Flanges : A350 LF1, LF2, LF3 CL1/CL2.

A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70. Steel RST37.2, C22.8

ASTM A182 Stainless Steel Flanges: F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L

ASTM B564 Nickel Alloy Flanges: Alloy C22, C276, A400, A600, A625, A800 & A825 / ASTM B462 Alloy 20.

ASTM A182 Alloy Steel Flanges: F1, F5, F9, F11, F22, F91.

Flange Face Type: Flat Face Flanges (FF), Raised Face Flange (RF), Groove and Tongue Flange, Ring type joint flange (RTJ)

Coating/Surface Treatment: Oil Black Paint, Anti-rust Paint, Yellow Transparent, Cold and Hot Dip Galvanised, Zinc Plated.

Value Added Services: Customised Flanges & CNC Machining.


DIN Plate Flanges (Slip On Flanges)
DIN Weld Neck Flanges
DIN Blind Flanges
DIN Threaded Flanges
DIN Lap Joint Flanges


Flange Diameter Pressure Rating (PN)
NPS PN6 PN10 PN16 PN25 PN40
DN 10 75 90 90 90 90
3/8″ 50 60 60 60 60
4 x 11 4 x 14 4 x 14 4 x 14 4 x 14
DN 15 80 95 95 95 95
1/2″ 55 65 65 65 65
4 x 11 4 x 14 4 x 14 4 x 14 4 x 14
DN 20 90 105 105 105 105
3/4″ 65 75 75 75 75
4 x 11 4 x 14 4 x 14 4 x 14 4 x 14
DN 25 100 115 115 115 115
1″ 75 85 85 85 85
4 x 11 4 x 14 4 x 14 4 x 14 4 x 14
DN 32 120 140 140 140 140
1 1/4″ 90 100 100 100 100
4 x 14 4 x 18 4 x 18 4 x 18 4 x 18
DN 40 130 150 150 150 150
1 1/2″ 100 110 110 110 110
4 x 14 4 x 18 4 x 18 4 x 18 4 x 18
DN 50 140 165 165 165 165
2″ 110 125 125 125 125
4 x 14 4 x 18 4 x 18 4 x 18 4 x 18
DN 65 160 185 185 185 185
2 1/2″ 130 145 145 145 145
4 x 14 4 x 18 4 x 18 8 x 18 8 x 18
DN 80 190 200 200 200 200
3″ 150 160 160 160 160
4 x 18 8 x 18 8 x 18 8 x 18 8 x 18
DN 100 210 220 220 235 235
4″ 170 180 180 190 190
4 x 18 8 x 18 8 x 18 8 x 22 8 x 22
DN 125 240 250 250 270 270
5″ 200 210 210 220 220
8 x 18 8 x 18 8 x 18 8 x 26 8 x 26
DN 150 265 285 285 300 300
6″ 225 240 240 250 250
8 x 18 8 x 22 8 x 22 8 x 26 8 x 26

Purpose, Significance and Considerations

The DIN Standard Flanges are useful to join a chain of pipes, tubes or flanges together. Some flanges need to undergo high pressure. For example in oil and gas sector, flanges are required to bear high amount of physical force. Hence at Devdeep Steel Alloys the flanges are tested before they are offered for sale to a specific sector. If the pressure demand is low the flange is welded. While where the pressure required is high the flange is either bolted or threaded. The DIN standards define the pressure PSI (pounds per second per inch) according to dimension and size of pipe flange.

The Steel flange is made from material such as stainless steel, carbon steel, nickel alloys or the kind of threaded matter used for fittings. Every flange is classified to a particular class. From these class ratings, various necessity such as bolt and nut dimensions, pressure-temperature rating, material coating and various other factors. Hence make up the flange standard corresponding to the feature.

Marking & Packaging
Steel Flange Marking & Packaging

We deliver DIN Flanges PN6 – PN40 from our warehouse to your workplace with complete protection in the meantime. The unforeseen accidents can damage the product during delivery, therefore we pack them in wooden pallet. In case of exports, we use wooden cases for standard export packaging. We take great care of product during transportation and operation. To clarify details, we clearly label the products regarding quality, quantity and product I.D outside the package. To prevent damage during transportation, Devdeep cover the product in plastic bags and close them in cartoon boxes. Furthermore we also provide seaworthy wooden cases plywood boxes according to the requirement of customer.

The DIN Flange contains marking such as Lot no, Steel Grade, outside diameter, Size & dimension, Wall thickness including Devdeep Steel Alloys Brand Mark. For customised marking you can contact us. We guarantee the fastest delivery for products in country, because of well equipped storage and warehouse facilities.

Quality Assurance & Test Certificates:

We undertake strict inspection at each stage in the process of production of DIN Flanges. At Devdeep Steel Alloys from purchasing of material to dispatch the product contains no defect. Our team member frequently examine the flange to confirm the international quality, codes and standards. ASTM, ASME (American), MSS, DIN German), EN (European), JIS (Japanese). To confirm the quality of products, to witness the dimension & material reports. We can call a certified Third Party Inspection agencies upon request. At Devdeep Steel Alloys, the clients can nominate Third Party Inspection for offered products. We can also arrange the TPI by World reputed Agencies like LLOYDS, DNV, ICB, Bureau Veritas and many other.

We use high quality raw material for manufacturing DIN Flange PN6 – PN40 tested from approved NABL Lab. Other testing reports such as Non Destructive or destructive and Hydro Testing Reports can be provided upon request of customer,

Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1B will be provided along with the DIN Pipe Flanges. In addition 100% Radiography Test Report, Raw Materials Certificate & Third Party Inspection Report available on demand.

Leading manufacturer of DIN Steel Flanges

Devdeep is the alone Indian business firm which got approval & acknowledgement for supplying DIN Flanges to topmost corporation worldwide. Our product are accepted as satisfactory by Saudi Aramco, ORPIC, KNPC, BPCL, KPCL, HPCL, BARC, Indian Navy and furthermore. Our list of certification include ISO 14001, ISO 9001:2008, OHSAS 18001 & approved PED manufacturer since 2014. We also maintain ready stock of DIN Flanges and other standard flanges. We manufacture and supply the following brands seen below.

Leading pipe flange manufacturer

  • Erne Fittings, Austria
  • Metalfar, Italy
  • Lame S.r.l., Italy
  • BKL- Thai Benkan, Thailand
  • Raccortubi S.P.A., Italy
  • BENKAN Corporation, Japan
  • Tecno Forge, Italy
  • Ulma, Spain
  • Mega, Italy
  • Interfit, France
  • Melesi, Italy
We are the largest Manufacturer, supplier & exporter of DIN Pipe flange of above mentioned brands. Our sales representative are always present to provide you absolute and proper details of these type of product. Information regarding product such as grades, sizes, quality and dimension is accessible.

Worldwide Availability

Flanges Ready Stock worldwide

Devdeep Steel Alloys make available DIN Steel Flanges by shipping worldwide, because of our specialist export sales manager. We manufacture wide range Flanges & Pipe Fitting in material Stainless steel, alloy Steel & carbon Steel since 1998. We are supplying & exporting SS Pipe Flange & fittings in seamless as well as welded both forms to more than 60 countries for over 2 decades. The expansion and growth of business led us to provide material across the globe. We are able to fulfil the increasing demand of diverse industries, because of ready stock facility. In case of rare specification flanges having different configuration and sizes, we have latest manufacturing technology to cater the needs.

In the following counties our dealers and distributors stock pipe flanges. Africa: Congo, Egypt, Ethiopia, Ghana, Libya, Kenya, Mauritius, Mozambique, Nigeria, Uganda, Zimbabwe. Middle East : Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Kazakhstan, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen. East and West Asia : Afghanistan, India, Pakistan, Moldova, Russia, South Korea, Mongolia, South & South East Asia: Bangladesh, Bhutan, Indonesia, Malaysia, Maldives, Myanmar, Nepal, Philippines, Sri Lanka, Vietnam. Europe : Austria, Belgium, Czech Republic, Germany, Italy, Poland, Romania, Serbia, United Kingdom. North & Central America : Cuba, Dominica, Canada, Chile, Peru, Uruguay.