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Highly reliable carbon steel blind flange manufacturer in India


Stainless Steel Blind Flanges



Stainless steel blind flanges specification

Size Face Type Schedule
  • DN15 - DN1200
  • 1/2" to 48"
  • PN 2.5 - PN 400
  • Raised Face Blind Flanges
  • Flat Face Blind Flanges
  • RTJ Blind Flanges
  • Male Female face (M&F)
  • Tongue and Groove (T&G)
  • Schedule 10
  • Schedule 20
  • Schedule 40
  • Schedule 60
  • Schedule 80
  • Schedule 100
  • Schedule 120
  • Schedule 160
  • Schedule 180
  • SCH XXS
Dimensional Inspection DIN Standard Bolts Hole
  • Body outer diameter
  • Bolt hole & bolt circle diameter
  • Straightness
  • Bolt hole alignment
  • Wall thickness
  • DIN 2527 blind flange (PN6 To PN40)
  • DIN 2633 blind flange
4 To 24
Markings On SS Blind Flange Coating Of ASTM A105 Blind Flange Machining Process Of Blind Pipe Flange
  • Size
  • Grade
  • Heat Number
  • Manufacturer logo
  • ASTM material
  • Pressure rating
  • Face type
  • Schedule
  • Country origin
  • Hot dip galvanized
  • Yellow paint
  • Anti-rust oil
  • Oil black paint
  • Zinc plated
  • Heat treatment
  • Forming
  • Material selection
  • Quality control
  • Forging
  • Machining
  • Surface finish
  • Material cutting
  • Shaping
  • Inspection
Certification Value Added Services Inspection Methods
EN 10204 3.1
  • Beveling end
  • Cutting
  • Coating
  • Marking tagging
  • MTR certification
  • Polishing
  • Impact test
  • Hardness test
  • Tensile test
  • Material inspection
  • PMI test
  • Visual inspection
Manufacturing Process Of Stainless Blind Flange Others Name Of BLRF flanges Sealing Surface
  • Plate
  • Cast
  • Forged
  • Dummy flanges
  • Double sided blind flange
  • Tapped blind flange
  • Blank flange
  • End flange
  • Flat surfaces
  • Convex surfaces
  • Concave and convex surfaces
  • Grooved surface
  • Ring joint surface
Equipment Production Process Manufacturing Standards
  • Press machine
  • Bending machine
  • Sand-blasting machine
  • Pushing machine
  • Electric bevelling machine
  • Raw Material
  • Inspection
  • Cutting
  • Forging
  • Heat Treatment
  • Forging Rolling
  • Final Inspection
  • Rust Prevention
  • Marking
  • Heat Number
  • Packaging
  • ASME B16.5
  • ASME B16.47
Types of Stainless Steel Blind Flange Pressure Rating Manufacturing Standards and Origin
  • Raised face blind flange
  • Flat face blind flange
  • Bossed blind flange
  • Blind tapped flange
  • Double blind flange
  • Weld neck blind flange
  • ASME B16.47 series A blind flange
  • ASME B16.47 series B blind flange
  • 150# up to 24"
  • 300# up to 20"
  • 600# up to 20"
  • 900# up to 16"
  • 1500# up to 10"
  • 2500# up to 8"
  • BS 10- Australia and UK
  • BS EN 1092-1 - Europe
  • Ghost - Russia
  • MSS SP44 - USA
  • AWWA - USA
  • ANSI B16.5 - USA
  • DIN- Germany
  • JIS - Japan
  • API-605 - USA
  • ASME B16.5- USA
  • PN 10 to PN400- Europe
  • UNI 2276/ 6091 - Italy
Surface Application Buying Tips
  • Stock finish
  • Spiral serrated
  • Concentric serrated
  • Mirror finish
  • Smooth finish
  • Cold water finish
  • Serrated finish
  • Refinery industry
  • Gas & Oil applications
  • Industrial piping connection
  • Aerospace constructions
  • Petrochemical plants
  • Nuclear power
  • Size
  • Type
  • End Type
  • Style
  • Length
  • O.D.
  • Pressure Rating
  • Thickness
  • Mass
  • Materials
  • Tested

NDT test done for high hub blind flange and tapped blind flange to ensure leak-free connection.



Available testing for BLRF flange

  • Hardness test
  • Tensile test
  • Impact test
  • PMI test
  • Visual inspection
  • Material inspection
Carbon steel blind flange price list

Find complete information about how to choose the right blank flange and SS dummy flanges for your oil refinery project.

Carbon steel blind flange price list

(Grade : A105, SCH 40) Price per piece in US Dollar

  • 1/2 inch, Class 150, RF
  • 1 inch, Class 150, RF
  • 1 1/2 inch, Class 150, RF
  • 2 inch, RF, Class 150
  • 2 1/4 inch, RTJ, Class 150
  • 2 1/2 inch, RTJ, Class 150
  • 3 inch, Class 150, RTJ
  • 3 1/2 inch, Class 150, RTJ
  • 4 inch, Class 150, RTJ
  • US $0.96
  • US $1.62
  • US $2.11
  • US $2.52
  • US $3.46
  • US $3.89
  • US $4.81
  • US $5.50
  • US $6.43

Selection criteria for SS dummy flange

Selection criteria for SS dummy flange

Supplier of raised face blind flange and flat face blind flange stockist in Mumbai, we accept BLRF flange small/ large orders


Types of ASME B16.5 blind flange

Carbon steel blind flange

Carbon steel blind flange

BLRF flange

BLRF flange

High hub blind flange

High hub blind flange

Tapped blind flange

Tapped blind flange

Blank flange

Blank flange

SS dummy flanges

SS dummy flanges

Raised face blind flange

Raised face blind flange

Flat face blind flange

Flat face blind flange

CS blind flange

CS blind flange

Blind flange with threaded hole

Blind flange with threaded hole

Double blind flange

Double blind flange

Weld neck blind flange

Weld neck blind flange

Sae blind flange

Sae blind flange

Blind flange with 2 tap

Blind flange with 2 tap

End blind flange

End blind flange

Threaded blind flange

Threaded blind flange

Double sided blind flange

Double sided blind flange

Reducing blind flange

Reducing blind flange




Questions to ask about ASME B16.5 blind flange

Questions to Ask About ASME B16.5 Blind Flange

High hub blind flange material table

Inconel Blind Flanges Incoloy Blind Flanges Hastelloy Blind Flanges
  • Inconel 600 : ASTM B564 UNS N06600 BLRF flange
  • Inconel 625 : ASTM B564 UNS N06625 BL flange
  • Inconel 601 : ASTM B564 UNS N06601 raised face dummy flange
  • Inconel 617 : ASTM B564 UNS N06617 flat face blind flange
  • Inconel 686 : ASTM B564 UNS N06686 RTJ dummy flange
  • Inconel 690 : ASTM B564 UNS N06690 Series A blind flange
  • Inconel 725 : ASTM B564 UNS N07725 BLRF flange
  • 693, MA754, 751, 706, 718, 601GC, MA758, 783, X-750, 602CA, 603XL, 718SPF
  • Incoloy 800 : ASTM B407 UNS N08800 blind flange with threaded hole
  • Incoloy 800H : ASTM B407 UNS N08810 blind tapped flange
  • Incoloy 800HT : ASTM B407 UNS N08811 double dummy flange
  • Incoloy 825 : ASTM B407 UNS N08825 weld neck blind flange
  • 903, 907, 945, 925, 926, 832, 330, 25-6HN, DS, 028, 020,909, 945X, MA956, 908, A-286, 27-7MO, 864, 890
  • Hastelloy C22 : ASTM B366 UNS N06022 flange pipe blind
  • Hastelloy C276 : ASTM B366 UNS N10276 sae dummy flange
  • Hastelloy C2000 : ASTM B366 UNS N06200 dummy flange with NPT thread
  • B-2, B, B-3, C, C-4, G-35, G-30, N, G-3, S, W, X
Monel Blind Flanges Nickel Alloy Blind Flanges Copper Nickel Blind Flanges
  • Monel 400 : ASTM B564 UNS N04400 blind flange with 2 tap
  • Monel 401 : ASTM B564 UNS N04401 BLRF flange PN16
  • Monel K500 : ASTM B564 UNS N05500 blind pipe flange
  • Nickel Alloy 200 : ASTM B564 UNS N02200 end blind flange
  • Nickel Alloy 201 : ASTM B564 UNS N02201 threaded blind flange
  • Copper Nickel 90/10 : ASTM B151 UNS C70600 BLRF plate flange
  • Copper Nickel 70/30 : ASTM B151 UNS C71500 dummy flanges
Stainless Steel Blind Flanges Carbon Steel Blind Flanges Alloy Steel Blind Flanges
  • ASTM A105 blind flange ANSI 150
  • ASME SA350 LF2 BRLF tapped flange
  • LTCS double BRLF flange
  • ASTM A694 F46 weld neck blind flange
  • A694 Grade F42 flange pipe blind
  • Carbon steel F56 sae blank flange
  • SA 694 F52 BLRF flange with NPT thread
  • A694 Gr F60 BLRF flange with 2 tap
  • High Yield F65 blank flange PN16
  • A694 F70 blind pipe flange
  • SA182 F1 end blind flange
  • A182 Grade F11 threaded blind flange
  • Alloy Steel blind plate flange
  • ASTM A182 F5 dummy flanges
  • ASME A182 Grade F22 double sided blind flange
  • Alloy Steel F91 blank flange
Super Duplex Blind Flanges Duplex Blind Flanges Titanium Blind Flanges
  • ASTM A182 F53 BLRF flange
  • A182 F55 reducing blind flange
  • ASME SA182 F60 dummy flange JIS 10k
  • A182 F61 super duplex dummy flange
  • ASTM A182 F51 iron blank flange
  • ASME SA182 F44 blind RF flange
  • Titanium Grade 2 : ASTM B381 UNS R50400 blank FF flange
  • Titanium Grade 5 : ASTM B381 USN R56400 blind flange welding


SS blind flange prices
Check ASME B16.5 blind flanges dimensions, weight & pressure rating, Buy Super duplex blind pipe flange material in our inventory including Titanium, Inconel, Hastelloy, and Monel.

SS blind flange prices

(Grade : F304, SCH 80) Price per piece in US Dollar

  • 1/2 inch, 300 LBS, RF
  • 1 inch, 300 LBS, RF
  • 1 1/2 inch, 300 LBS, RF
  • 2 inch, RF, 300 LBS
  • 2 1/4 inch, RTJ, 300 LBS
  • 2 1/2 inch, RTJ, 300 LBS
  • 3 inch, 300 LBS, RTJ
  • 3 1/2 inch, 300 LBS, RTJ
  • 4 inch, 300 LBS, RTJ
  • US $1.92
  • US $2.23
  • US $3.41
  • US $4.52
  • US $5.66
  • US $6.79
  • US $7.81
  • US $8.20
  • US $9.13

Stainless steel blind flanges dimensions

Stainless steel blind flanges dimensions
NPS Outer Diameter
(“A”) (MM)
Wall Thickness
(“B”) (MM)
RF Diameter
(“C”)
Bolt Circle Diameter
(“D”)
Number Of Bolt
Holes

Bolt Holes Diameter
 1/2 76.2 11.11 1-3/8 2-3/8 4 5/8
 3/4 76.5 12.7 1-11/16 2-3/4 4 5/8
 1 101.6 14.28 2 3-1/8 4 5/8
 1-1/4 101.8 15.87 2-1/2 3-1/2 4 5/8
 1-1/2 127 17.46 2-7/8 3-7/8 4 5/8
 2 152.4 19.05 3-5/8 4-3/4 4 3/4
 2-1/2 177.8 22.22 4-1/8 5-1/2 4 3/4
 3 177.9 23.81 5 6 4 3/4
 3-1/2 177.9 23.81 5-1/2 7 8 3/4
 4 228.6 23.81 6-3/16 7-1/2 8 3/4
 5 254 23.81 7-5/16 8-1/2 8 7/8
 6 279.4 25.4 8-1/2 9-1/2 8 7/8
 8 330.2 25.6 10-5/8 11-3/4 8 7/8
 10 406.4 26.5 12-3/4 14-1/4 12 1
 12 482.6 26.7 15 17 12 1
 14 533.4 26.8 16-1/4 18-3/4 12 1-1/8
 16 584.2 26.9 18-1/2 21-1/4 16 1-1/8
 18 635 30 21 22-3/4 16 1-1/4
 20 685.8 30.3 23 25 20 1-1/4
 24 812.8 30.5 27-1/4 29-1/2 20 1-3/8

Class 300 blind flange dimensions

NPS Bolt Holes Diameter Outer Diameter (“A”) Number Of Bolt Holes Wall Thickness (“B”) RF Diameter(“C”) (MM) Bolt Circle Diameter(“D”) (MM)
 1/2 5/8 3-3/4 4 9/16 25.4 50.8
 3/4 3/4 4-5/8 4 5/8 30.5 76.2
 1 3/4 4-7/8 4 11/16 50.8 86.5
 1-1/4 3/4 5-1/4 4 3/4 50.8 96.8
 1-1/2 7/8 6-1/8 4 13/16 60.3 101.6
 2 3/4 6-1/2 8 7/8 76.2 127
 2-1/2 7/8 7-1/2 8 1 101.6 130
 3 7/8 8-1/4 8 1-1/8 127 152.4
 3-1/2 7/8 9 8 1-3/16 130 177.8
 4 7/8 10 8 1-1/4 152.4 190.
 5 7/8 11 8 1-3/8 177.8 228.6
 6 7/8 12-1/2 12 1-7/16 203.2 254
 8 1 15 12 1-5/8 254 330.2
 10 1-1/8 17-1/2 16 1-7/8 304.8 381
 12 1-1/4 20-1/2 16 2 381 431.8
 14 1-1/4 23 20 2-1/8 406.4 508
 16 1-3/8 25-1/2 20 2-1/4 457.2 558.8
 18 1-3/8 28 24 2-3/8 533.4 609.6
 20 1-3/8 30-1/2 24 2-1/2 584.2 685.8
 24 1-5/8 36 24 2-3/4 685.8 812.8


Stainless steel blind flange weight in KG

Normal Pipe Size Class 150 Blind Class 300 Blind Class 600 Blind Class 900 Blind Class 1500 Blind
1/2 0.9 0.9 1.4 1.8 1.8
3/4 0.9 1.4 1.8 2.7 2.7
1 0.9 1.8 1.8 4.1 4.1
1.4 2.7 2.7 4.5 4.5
1.8 3.2 3.6 6.3 6.3
2 2.3 3.6 4.5 11.3 11.3
3.2 5.4 6.8 14.4 15.8
3 4.1 7.2 9 15.8 21.6
5.9 9.5 13 - -
4 7.7 12.6 18.5 22 32.9
5 9 16.7 30.6 36.5 63
6 12.2 22.5 38.7 47.3 72
8 21.2 36.5 63 85.5 135.9
10 31.5 55.8 103 124.7 229.5
12 55.4 83.3 132.8 166 348.8
14 63 112.5 170.1 186.8 438.8
16 81 141.8 237.2 219.6 585
18 99 186.3 299.3 301.5 787.5
20 128.3 231.8 384.8 390.6 1001
22 159.8 288 450 - 159.8
24 193.5 360 562.5 944.6 1631


Flat face blind flange pressure rating

Temperature °F (Fahrenheit) CL 900 CL1500 CL 2500 CL 150 CL 300 CL 600
-20 to 100 2160 3600 6000 275 720 1440
200 1800 3000 5000 230 600 1200
300 1620 2700 4500 205 540 1080
400 1490 2485 4140 190 495 995
500 1395 2330 3880 170 465 930
600 1310 2185 3640 140 435 875
700 1275 2125 3540 110 425 850
800 1210 2015 3360 80 405 805
900 1165 1945 3240 50 390 780
1000 965 1605 2675 20 320 640
1050 925 1545 2570 20 310 615
1100 770 1285 2145 20 255 515
1150 595 995 1655 20 200 400
1200 465 770 1285 20 155 310
1250 340 565 945 20 115 225
1300 255 430 715 20 85 170
1350 185 310 515 20 60 125
1400 145 240 400 20 50 95
1450 105 170 285 15 35 70
1500 80 135 230 10 25 55

CS blind flange bolt chart

CS blind flange bolt chart
NPS Pressure Class 300
Flange Diameter Bolt Holes Diameter (MM) Bolt Circle Bolts Number Bolts Diameter (MM)
1/4 15.74 2-1/4 3 3/8 4 12.7
1/2 15.74 2-5/8 3 3/4 4 12.7
3/4 19.05 3-1/4 4 5/8 4 15.87
1 19.05 3-1/2 4 7/8 4 15.87
1-1/4 19.05 3-7/8 5 1/4 4 15.87
1-1/2 22.35 4-1/2 6 1/8 4 19.05
2 19.05 5 6 1/2 8 15.87
2-1/2 22.35 5-7/8 7 1/2 8 19.05
3 22.35 6-5/8 8 1/4 8 19.05
3-1/2 22.35 7-1/4 9 8 19.05
4 22.35 7-7/8 10 8 19.05
5 22.35 9-1/4 11 8 19.05
6 22.35 10-5/8 12 1/2 12 19.05
8 25.4 13 15 12 22.22
10 28.44 15-1/4 17 1/2 16 25.4
12 31.75 17-3/4 20 1/2 16 25.4
14 31.75 20-1/4 23 20 25.5
16 35.05 22-1/2 25 1/2 20 25.4
18 35.05 24-3/4 28 24 25.4
20 35.05 27 30 1/2 24 25.4
24 41.14 32 36 24 25.4


Raised face blind flange thickness chart

Size
in Inch
Wall
Thickness
Weight
In Kilogram
1/2 9.6 0.9
3/4 11.2 0.9
1 12.7 0.9
1 1/4 14.3 1.4
1 1/2 15.9 1.8
2 17.5 2.3
2 1/2 20.7 3.2
3 22.3 4.1
3 1/2 22.3 5.9
4 22.3 7.7
5 22.3 9.1
6 23.9 11.8
8 27 20.5
10 28.6 32
12 30.2 50
14 33.4 64
16 35 82
18 38.1 100
20 41.3 130
24 46.1 196

Tapped blind flange dimensions

Tapped blind flange dimensions
NPS (K) (T) (D) (G)
1/2 60.3 9.6 90 34.9
1 79.4 12.7 110 50.8
2 120.7 17.5 150 92.1
3 152.4 22.3 190 127.0
4 190.5 22.3 230 157.2
6 241.3 23.9 280 215.9
8 298.5 27.0 345 269.9
10 362.0 28.6 405 323.8
12 431.8 30.2 485 381.0
16 539.8 35.0 595 469.9
18 577.9 38.1 635 533.4
20 635.0 41.3 700 584.2
22 692.2 44.5 750 641.4
24 749.3 46.1 815 692.2

AWWA blind flange dimensions

Style Of Stainless Steel Blind Flanges Size Range
B, D, E 4” To 72 inch
F, SF 4” To 48 inch
SA 2” To 8 inch
SB, SD, SE 2” To 72 inch


ASME blind flange dimensions

Specification Pressure Class Size Range
ASME B16.5 150 0.5” To 24 inches
ASME B16.5 300 0.5” To 24 inches
ASME B16.47 150 26” To 60 inches
ASME B16.47 300 26” To 60 inches