ANSI B16.5 Flanges

Highly acclaimed Manufacturer & Supplier Of ASME / ANSI B16.5 Flanges in India & Asia

Devdeep Steel Alloys is one of leading and experienced ASME / ANSI B16.5 Flanges Manufacturer in India. ANSI flange (American National Standards Institute) include ANSI B 16.5, ANSI B 16.47 series A & Series B, ANSI 16.36 etc. This standard system include slip on flange, welded neck flange, socket welded flange, threaded flange, blind flange, lapped joint flange (loose flange), Orifice Flanges, long weld neck flange and special flange. The sizes available are from 1/2 inch to 60 inch in class 150, class 300, class 600, class 900, class 1500, class 2500. The face type of Ansi B16,5 Flange is commonly raised face (RF), but also available 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 ANSI B16.5 Flanges. Devdeep Steel  exclusively design and develop flanges as per international quality standards by applying most appropriate accessible technologies. We supply the best quality ANSI B16,5 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.asme / ansi b16.5 flanges

What’s the difference between ANSI B16.5 and ASME B16.5 standards?

In 1973, the standard B16.5 was issued by ANSI. Before that it was an ASA standard.  The standard changed to ASME B16.5, in 1996. Before 10 years to the change, the standard ANSI & ASME consolidated and werw listed as ANSI/ASME B16.5.

So the answer is that, there is no difference between ANSI B16.5 and ASME B16.5. The ASA, ANSI and ASME are all in the same have continually filtered the B16.5 standard. We are sure that anybody is working on future improvement right now. The accurate and ongoing standard is ASME B16.5. While ANSI B16.5 is common industry language and is still referred by suppliers, manufacturers, architects and engineers. Although the ANSI B16.5 standard does not technically exist, it its understood as another way to say ASME B16.5.

The B16.5 Standard defines the following:

  1. Dimensions
  2. Tolerances
  3. Materials
  4. Markings
  5. Pressure/Temperature Ratings
  6. Pressure Testing

Devdeep distributes industrial and commercial flanges in all the materials listed below.  We work with manufacturers in the US and globally to insure the highest quality products and the fastest delivery times.


The Standards, Codes and Guidelines for flanges are overseen by the American National Standard Institute, ANSI. In various industrial market such as steam and air, oil and gas process systems, use ANSI approved flanges manufactured by individual sectors.

Carbon Steel / Stainless Steel ANSI B16.5 Forged Flanges Production Range.

Size: 1/2″ (15 NB) to 48″ (1200 NB)

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, 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.

Purpose, Significance and Considerations

The ANSI B16.5 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 ANSI 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 ANSI B16.5 Flanges 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 ANSI B16.5 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 ANSI B16.5 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 ANSI B16.5 Steel Flange 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 ANSI B16.5 Pipe Flanges. In addition 100% Radiography Test Report, Raw Materials Certificate & Third Party Inspection Report available on demand.

Leading manufacturer of ANSI B16.5 Steel Flanges

Devdeep is the alone Indian business firm which got approval & acknowledgement for supplying ANSI B16.5 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 ANSI B16.5 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 ANSI B16.5 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 worldwideDevdeep Steel Alloys make available ANSI B16.5 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.

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