Spectacle Flange Manufacturers
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ASME B16.5 Class 300 Spectacle Blind Flange at the best price, Stainless Steel 304/304H Spectacle Blind Flange, ASME 16.48 Spectacle Blind Dimensions, Stainless Steel 310 Spectacle Blind Flange exporters in India.
Detailed Information
What is a spectacle blind?
Spectacle Blinds are simple safety devices that are put between two pipe flanges. During normal use, the open end is set up as a spacer to keep the flow from being interrupted. The flow in the pipeline is stopped by moving the blind end between the flanges.
Prashaant Steel & Alloys is known as the pinnacle in the world of metal market for the best quality Spectacle Blind Flange production in India. We can produce Spectacle Blind Flange according to the standards for materials, pressure ratings, etc. Such standards include DIN, BS, and/or ISO standards, Japanese JIS. Spectacle Blind Flange is a flange placed over the end of the pipe that extends the flange face from the end of the pipe by a sufficient distance to remove a soiling Perle on the internal diameter. Also on the back of the flange, the outer diameter of the flange is soldered. Flanges are less costly than Spectacle Blind Flange and easy to fit. Often, if type B or type C ends are used, this can be used as Spectacle Blind Flange.
Prashaant Steel & Alloys is a leading Manufacturer & Supplier of all Ferrous & Non-Ferrous Metals. As a pioneer and leader in the manufacturing industry, Prashaant Steel & Alloys is at the forefront of technology and research. We are constantly innovating, listening to the rapidly changing market and giving the consumer the best value for his money. Prashaant Steel & Alloys is one of the eminent manufacturers and exporters of high Grade ASTM A182 Stainless Steel Slip on Flanges. Prashaant Steel & Alloys has been a professionally managed importer, stockist and supplier of ferrous and non-ferrous metals. We are capable of providing a vast range of materials, from stock, to suit your needs. Prashaant Steel & Alloys offers a commendable range of Carbon Steel Slip on Flanges, for the prestigious clients with competitive price. From highly specialized non-standard material to off the shelf items, from production to prototype, from low minimums to mill runs. Prashaant Steel & Alloys has the experience to solve your most difficult requirements
Spectacle Blind Flanges Specifications
| Stainless Steel Flanges Specifications | ASTM A182 / ASME SA182 |
| Size Chart of SS Spectacle Blind Flanges | 1/2″ (15 NB) to 48″ (1200 NB) |
| Standards Of ASTM A182 Stainless Steel Spectacle Blind Flanges | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Class / Pressure rating of SS WN flanges | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| American Standard of SS Flanges | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Connect Type/ Flange Face Type
|
Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Grade | ASTM A182 F304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 904L ETC. |
Chemical Composition of Spectacle Blind Flanges (Stainless Steel)
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.040 max | 0.030 max | 18 – 20 | – | 8 – 11 | |
| SS 316 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 16 – 18 | 2 – 3 | 10 – 14 | 0.1 max |
| SS 309 | 0.20 max | 2 max | 1 max | 0.045 max | 0.030 max | 23 max | 60 | “ | |
| SS 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 317 | 0.08 max | 2 max | 1.00 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 904l | 0.020 max | 2 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
Spectacle Blind Flanges Mechanical & Physical Properties (Stainless Steel)
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 304 | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| SS 310 | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| SS 316 | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| SS 317 | 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| SS 321 | 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| SS 347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| SS 904l | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
ASTM A182 Stainless Steel Spectacle Blind Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 316 | 1.4401 | S31600 | SUS 316 | 316S31 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 |
| SS 309 | 1.4828 | S30900 | |||||
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | ||
| SS 317 | 1.4449 | S31700 | SUS 317 | ||||
| SS 321 | 1.4541 | S32100 | SUS 321 | ||||
| SS 904l | 1.4539 | N08904 | SUS 904L | 904S13 |
Dimensional Tolerances of Spectacle Blind Flanges ASME B16.5/ ANSI B16.5 Spectacle Blind Flange Tolerances
| Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm |
Inside Diameter
not applicable |
| Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm |
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm |
| Diameter of Counterbore
not applicable |
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max. |
| Thickness
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0 |
Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm |
Spectacle Blind Dimensions
Stainless Steel Spectacle Blind Flanges Weight Chart
| Standard | Class | Diameter | Bolt Circle Diameter | Number of Bolts | Bolt Size | Diameter of Bolt Hole |
| AS4087 Flanges | PN14 Flanges | 95 | 67 | 4 | M12 | 14 |
| AS 2129 Flange | Table C Flanges | 95 | 67 | 4 | 13 | 14 |
| Table D Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table E Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table F Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table H Flanges | 114 | 83 | 4 | 16 | 17 | |
| Table J Flanges | 114 | 83 | 4 | 16 | 17 | |
| ANSI B16.5 Flanges | ANSI 150 Flanges | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) Flange | PN6 Flanges | 80 | 55 | 4 | M10 | 11 |
| PN10 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN16 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN20 Flanges | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN40 Flanges | 95 | 65 | 4 | M12 | 14 |
Other Type of Stainless Steel Spectacle Blind Flange Manufacturers
| spectacle blind flange raised face | spectacle blind flange pn16 |
| spectacle blind flange flat face | ASME B16.48 Spectacle Flange |
| Spacer blind flange | spectacle blind flange ASME B16.48 |
| Blind Spectacle Flange | Spectacle Blind Flange |
| spectacle blind flange 300 | ASME B16.5 Spectacle Blind Flanges |
| Piping Spectacle Blind Flange | Spectacle Blind Flange ASME B16.48 |
| Spectacle Blind Flange Class 150 | Spectacle Blind Flange Flat Face |
| Spectacle Blind Flange Figure 8 | Spectacle Blind Flange Raised Face |
| Spectacle Blind Flange Rf | Spectacle Blind Flange Rtj |
Available Grades of ANSI 16.5 Stainless Steel Spectacle Blind Flanges
- 304 Stainless Steel Spectacle Blind Flanges
- 304L Stainless Steel Spectacle Blind Flanges
- 304H Stainless Steel Spectacle Blind Flanges
- 310 Stainless Steel Spectacle Blind Flanges
- 310S Stainless Steel Spectacle Blind Flanges
- 310H Stainless Steel Spectacle Blind Flanges
- 316 Stainless Steel Spectacle Blind Flanges
- 316L Stainless Steel Spectacle Blind Flanges
- 316Ti Stainless Steel Spectacle Blind Flanges
- 317 Stainless Steel Spectacle Blind Flanges
- 317L Stainless Steel Spectacle Blind Flanges
- 347 Stainless Steel Spectacle Blind Flanges
- 347H Stainless Steel Spectacle Blind Flanges
- 410 Stainless Steel Spectacle Blind Flanges
- 430 Stainless Steel Spectacle Blind Flanges
- 446 Stainless Steel Spectacle Blind Flanges
- 904L Stainless Steel Spectacle Blind Flanges
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