Blind Flanges Manufacturer in India

Blind Flanges Manufacturers, Supplier and Exporter in India

Metalica Forging Inc. is a leading Blind Flanges manufacturers in Mumbai, India. Our qualitative range of Blind Flanges is exclusively designed for several piping applications of various industries Such as steel factories, chemical industries, petrochemical industry, fire protection systems, etc. We have types of Blind Flanges that include Monel Blind Flanges, Inconel Blind Flanges, Carbon Steel Blind Flanges, Copper Nickel Blind Flanges, Stainless Steel Blind Flanges, and more. Blind Flanges are designed and developed in accordance with the IQS (International Quality Standards). We also offer customized Blind Flanges as per the customer’s requirement.

Blind Flanges Manufacturers, Spectacle Blind flange, Tapped Blind Flange, Blind Pipe Flanges, Flat Face Blind Flange, and Blind Flanges Stockists in India

Metalica Forging Inc is the world leader in Blind Flanges Manufacturers. We cater to the huge global demand of our clients who are spread across 5 continents and around 80 countries. Our Blind Flanges are reputed and well known across the globe for their reliability and quality. We treat our clients as our partners by providing them with our products and services. Metalica Forging Inc manufactures Blind Flanges of different shapes and sizes and with different specifications as per the customers’ requirements.

Blind Flanges Specification, Grades, and Material

Blind FlangesSpecifications
StandardsANSI, JIS, DIN, EN1092-1, UNI, BS4504, SABS1123, AS2129, GOST-12820
DimensionANSI B 16.5 Blind Flange, BS 1560. BS 10 Blind Flange, IS 6392 Blind Flange, B-2.1 NPT Blind Flange, API Blind Flange, DIN Blind Flange, JIS. MSS SP 44 Blind Flange
MaterialASTM A105 Blind Flange, ASME A105 Blind Flange
ASTM A266 GR.1 Blind Flange, GR.2 Blind Flange, GR.3 Blind Flange, GR.4 Blind Flange
ASTM A350 LF1 Blind Flange, LF2 CL1/CL2 Blind Flange, LF3 CL1/CL2 Blind Flange
ASTM A694 F42 Blind Flange, F46 Blind Flange, F48 Blind Flange, F50 Blind Flange, F52 Blind Flange, F56 Blind Flange, F60 Blind Flange, F65 Blind Flange, F70 Blind Flange
ClassBlind Flange 150#, Blind Flange 300#, Blind Flange 600#, Blind Flange 900#, Blind Flange 1500# & Blind Flange 2500#
Size1/2” NB TO 24” NB.


Stainless SteelASTM / ASME 201, 202, 301, 304, 304L, 310, 310S, 316L, 316TI, 317, 317L, 321, 347, 409, 409M, 409L, 410, 410S, 420, 430, 431, 441, 444, 446, 17.4PH, 904L
Super Duplex SteelS32750
Duplex SteelASTM / ASME SA 790 UNS NO S 31803 , S 32205 , S 32550 , S 32750 , S 32760.
Carbon SteelASTM / ASME A 335 GRP 1 , P 5 , P 9 , P 11 , P 12 , P 22 , P 23 , P 91
Alloys SteelASTM / ASME A 691 GRP1 CR , 1 1/4 CR , 2 1/4 CR , 5 CR , 9CR , 91.
Nickel AlloysNickel Alloys 200, Nickel Alloys 201
TitaniumGrade 1, Grade 4, Grade 5(Ti 6Al-4V), Grade 6(Ti 5Al-2.5Sn), Grade 7, Grade 11, Grade 12, 8Ai-1Mo-1V, Grade 9(3Al-2.5V), 6Al-6V-25n, 6Al-2Sn-4Zr-2Mo, 6Al-7Nb, Grade 23(Ti 6AL-4V ELI), Grade 5 ELI
InconelInconel 600, Inconel 601, Inconel 625, Inconel 625LCF, Inconel 686, Inconel 718, Inconel 800, Inconel 825, Inconel X-750 , Inconel 690, Inconel 602, Inconel 617, Inconel 925, Inconel A-289, Inconel AL-6XN, AL-904L
HastelloyHastelloy C-22, Hastelloy C-276, Hastelloy C-2000, Hastelloy C-4, Hastelloy X, Hastelloy B, Hastelloy N, Hastelloy G
MolybdenumASTM / ASME A 182 GR F 5, F 9 , F 11 , F 12 , F 22 , F 91, ASTM B387, Ferro Molybdenum
CobaltCobalt HS-6, Cobalt HS-4, Cobalt HS-25, Sterlite Grade 1, Sterlite Grade 6, Sterlite Grade 12, Sterlite Grade 21
NiobiumASTM B394, R04200 R04210
NimonicNimonic75, Nimonic80, Nimonic85, Nimonic90, Nimonic263, etc
TungstenW1 WAl1, W61, etc, Carbonide Tungsten, Copper Tungsten, Nickel Tungsten
NichromeNichrome90, Nichrome80, Nichrome80A, Nichrome RW80, Nichrome75, etc
MagnesiumMagnesium AL017100, AL017140, AL017150, AL017160, AL017200, AL017210, AL017250, etc.
TantalumTantalum – Grade 1.
MonelMonel 400, Monel k500
ZirconiumZirconium 702, Zirconium 705,Zirconium 705, Zirconium-2, Zirconium-4
Beryllium CopperAlloy 25 UNSC17200
Aluminium1050,1100, 2017, 7150, 7178, 7575, 2050, 7085, 2011 A92011, 2014A A92014, 2024 A92024, 2219, 5052 A95052, 5083 A95083, 5754, 6061 A96061 A86061, 6063, 6082 A96082, 7071 7020, 7050 A97050, 7075 A97075 A87075, 7175
Copper AlloysC 11000, C 10200, C 12200, C 51100, C 51000, C 51900, C 52000, C 52100, C 74500, C 75700, C 75400, C 76400, C 77000, C 21000, C 22000, C 23000, C 24000, C 26000, C 26800, C 27000, C 27200, C 28000

About Blind Flanges

A blind flange is also called a blind disk or flanged pipe plug. in Blind flange, there are no holes in the center, to seal the pipe opening. So its operation is the same as the pipe cap or the pipe plug. The difference from other flange is detachable equipment, easy to replace or do maintenance.

Major Function – Where to use

The major function of blind flanges is totally to separate the production medium. Which prevents the shut-off valve from closing not fast, then affecting production, and even causing accidents.

The location where it needs isolation should place the blind flange, such as at the equipment nozzle. Between the two flanges or between the front and rear of the shut-off valve, it is often suggested to use a figure 8 blind flange (figure-8 blank); For single-use parts such as pressing and purging usually use a common round blind flange.

Sealing Surface

There are different types of sealing surfaces, such as flat, grooved surface, concave, convex, and ring joint surfaces.

Material Types and Standards

Materials of Blind Flange usually required in stainless steel, carbon steel, aluminum, alloy steel, copper, and etc.

  • Carbon steel blind flange: ASTM A105
  • Alloy steel: ASTM A182 F5, F9, F11, F22, F91
  • Stainless steel blind flange: ASTM A182 F304/L, F316/L

Manufacturing Standards

  • ASME B16.5
  • BS 3293
  • DIN 86029


  • General use OD range: 1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, to 24”.
  • Special made OD: Up to 60”.
  • Class range: Class 150, Class 300, 400, 600, 900, 1500, 2500
  • Flange face type: RF (Raised Face), RTJ (Ring Type Joint)

Manufacturing Types and Costs

Generally has four types: casting and forging, medium plate cutting, Forging, casting, the price of forging products is the highest, the middle plate is the second, casting and forging is the lowest and casting is the worst method when compared with others.

The best quality is forging and medium plate, casting, and the forging could be a bit worse.

Casting Blind Flange

The shape of the casting flange blank is accurate, has a small processing capacity, the cost is low, but there are casting defects (air hole crack inclusions); And the streamline of the internal casting part is bad (if it is a cutting part, the streamline is worse).

Forging Blind Flange

Forged blind flanges typically have lower carbon content than cast flanges and are not easy to rust. Forgings have denser structure, better-streamlined shape, and better mechanical properties than the cast flanges;

If the forging method is improper, the grain can be big or uneven, and the hardening crack will occur. The casting flange cost is lower than the forging.

Precautions When Use

Under the premise of meeting the method requirements, use as few blind plates as possible.

The blind plate set must be marked as usually open or usually closed.

The location of the blind plate is determined by the safety, cutting effect, and process requirements.

Blind Flanges Applications and Uses:

  • Blind Flanges used in Homes and buildings
  • Blind Flanges used in Transporting materials
  • Blind Flanges used in the Automotive industry
  • Blind Flanges used in Sewerage systems, industrial water lines, and water mains.
  • Blind Flanges used in heating, ventilating, and air-conditioning equipment.
  • Blind Flanges used in Plumbing
  • Blind Flanges used in Food Processing Industry
  • Blind Flanges used in Paper & Pulp Industry

Metalic Forging INC is a Leading Supplier of Blind Flanges in India

Metalic Forging INC is India’s most trusted Blind Flanges Suppliers in India. Our High-quality Blind Flanges, sensible customer service, and in-house Blind Flanges processing capabilities have made us one of the emerging and leading suppliers for Blind Flanges in India. Metalic Forging INC is an ISO 9001:2009 certified company that has been in existence since 2004. Product dependability and performance have created Metalic Forging INC leading businessperson, manufacturers, and suppliers of Blind Flanges in India.

Class 150 Blind Flanges Dimension

in Inch
in mm
PCDNo of
Bolt Size
Machine Bolt
RF Stud
Hole SizeISO Stud
in kg
1 1/43211514.363.5288.941/255705/8M141.4
1 1/24012515.973298.441/265705/8M141.8
2 1/26518020.7104.82139.745/875903/4M163.2
3 1/29021522.3139.72177.885/875903/4M165.9
1435053533.4412.82476.31211151351 1/8M2764
1640059535469.92539.81611151351 1/8M2782
1845063538.1533.42577.9161 1/81251451 1/4M30100
2050070041.3584.22635201 1/81401601 1/4M30130
2460081546.1692.22749.3201 1/41501701 3/8M33196

Class 300 Blind Flanges Dimension

in Inch
in mm
PCDNo of
Bolt Size
Machine Bolt
RF Stud
ISO Stud
in kg
1 1/43213517.563.5298.445/870853/4M161.8
1 1/24015519.1732114.343/475907/8M202.7
2 1/26519023.9104.82149.283/4851007/8M205.5
3 1/29023028.6139.72184.283/4951107/8M209.6
1025044546.1323.82387.41611401601 1/8M2757
1230052049.33812450.8161 1/81451701 1/4M3084
1435058552.4412.82514.4201 1/81601801 1/4M30113
1640065055.6469.92571.5201 1/41651901 3/8M33134
1845071058.8533.42628.6241 1/41701951 3/8M33181
2050077562584.22685.8241 1/41852051 3/8M33230
2460091568.3692.22812.8241 1/22052301 5/8M39359

Class 900 Blind Flanges Dimension

Size in InchSize in mmOuter Dia.Flange Thick.RF Dia.RF HeightPCDNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud SizeWeight in kg
1 1/43216028.663.57111.147/81251M244.1
1 1/24018031.8737123.8411401 1/8M275.9
2 1/26524541.3104.87190.5811601 1/8M2716
410029044.5157.2723581 1/81701 1/4M3024.5
512535050.8185.77279.481 1/41901 3/8M3339.5
615038055.6215.97317.5121 1/81901 1/4M3053
820047063.5269.97393.7121 3/82201 1/2M3691
1025054569.9323.87469.9161 3/82351 1/2M36132
1230061079.43817533.4201 3/82551 1/2M36189
1435064085.8412.87558.8201 1/22751 5/8M39237
1640070588.9469.97616201 5/82851 3/4M42273
18450785101.6533.47685.8201 7/83252M48367
20500855108584.27749.32023502 1/8M52463
246001040139.7692.27901.7202 1/24402 5/8M64875

Client Projects for Blind Flange Supplier in India:-

Metalica Forging Inc. is one of the top-rated Blind Flanges Dealer in India. Each month we tend to Supply Blind Flanges products to around sixty countries and also to completely different customers. Over the last twenty years, we have delivered 3500+ containers of Blind Flanges all over the world. Our company is a name that people trust in, our brand name implies fast delivery, affordable prices, and superior quality of Blind Flanges. We have supplied Blind Flanges in many cities in India.

Product suppliedCity
Blind Flanges for Automobile IndustryDelhi, New Delhi
Blind Flanges supplyHyderabad, Telangana
Blind Flanges supply for Water Supply SystemBanglore, Karnataka
Blind Flanges for the Chemical industrySurat, Gujarat
Blind Flanges Supplier in India – Metalica Forging Inc

Blind Flange’s dependability and performance have created Metalica Forging INC leading suppliers, dealers, manufactures, and exporters Blind Flanges in India. Each month we tend to supply/export Blind Flanges to Indian port around fifty-seven containers to completely different customers.

Due to giving a high quality of Blind Flanges at lower prices with the simple services, we’ve our sales representatives at most of the vital cities of India that are:

City we supply Blind Flanges:
New DelhiAhmedabadJaipurSuratSalemGandhinagar
BhubaneswarVijaywadaFirozabadBokaro Steel CityRajkotBharuch
ThaneBhopalSri CityBareillyHosdurgPithampur
Blind Flanges Exporter– Metalica Forging Inc

Metalica Forging Inc exports Blind Flanges in more than 50 countries. we have shipments going out monthly to different countries for our newly acquired customers. Our ready stock of Blind Flanges helps us ship the Blind Flange and meet the requirement and demands of our customers as fast as possible.

We additionally offer Blind Flanges to alternative country

Countries we supply and export Blind Flanges worldwide:
Saudi ArabiaOmanKuwaitNetherlandsIran
NigeriaMexicoCanadaVenezuelaUnited Kingdom
United StatesSouth AfricaMalaysiaBangladeshTurkey
SingaporeSri LankaAustraliaBrazilGermany
FranceItalySouth KoreaPolandBelgium

Blind Flanges Packaging & Delivery Details:-

  1. Pay Mode Terms: L/C (Letter of Credit), T/T (Bank Transfer), Other
  2. Port of Dispatch: Mumbai OR KALAMBOLI India
  3. Packaging Details: Blind Flanges are packaged with caution and safety so they reach our client’s as good as he would expect. Packaging Charges Extra.
  4. Tax: 18% GST