Super Duplex S32760 Spectacle BlindASTM A182 · ASME B16.48 · Manufacturer, stockist & exporter, India
UNS S32760 · W.Nr 1.4501 · SB
A Super Duplex S32760 spectacle blind is a figure-8 plate with one solid end and one open ring, fitted between two flanges, made from Super Duplex S32760 to ASTM A182 F55. A spectacle blind lets operators positively isolate a line: rotate the solid end into the line to block flow, or the ring end to allow it. Larger sizes use separate spacers and paddle blanks.
- ASTM A182
- ASME B16.48
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Super Duplex S32760 Spectacle Blind?
- What it is
- A figure-8 plate with one solid end and one open ring, fitted between two flanges
- Material
- ASTM A182 F55
- Dimensions
- ASME B16.48
- Grade
- Super Duplex S32760 · UNS S32760
- Best at
- Seawater firewater, injection and offshore piping
Super Duplex S32760 Spectacle Blind Specification
| Product | Super Duplex S32760 Spectacle Blind |
|---|---|
| Material standard | ASTM A182 F55 |
| Dimensional standard | ASME B16.48 |
| Sizes | ½" – 24" (ASME B16.5) · 26" – 60" (ASME B16.47) |
| Pressure class | Class 150, 300, 400, 600, 900, 1500, 2500 · PN 6 – PN 100 |
| Facing | RF · FF · RTJ · tongue & groove |
| Bore | To match pipe schedule (state on order) |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Spectacle Blind
A spectacle blind lets operators positively isolate a line: rotate the solid end into the line to block flow, or the ring end to allow it. Larger sizes use separate spacers and paddle blanks.
- Thickness set by class and size
- Paddle blank and spacer versions for large bores
- Handle or lifting lug to order
Super Duplex S32760 Spectacle Blind Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 24.0 – 26.0 |
| Nickel | 6.0 – 8.0 |
| Molybdenum | 3.0 – 4.0 |
| Nitrogen | 0.20 – 0.30 |
| Copper | 0.50 – 1.00 |
| Tungsten | 0.50 – 1.00 |
| Carbon | 0.030 max |
| Manganese | 1.00 max |
Super Duplex S32760 Spectacle Blind Mechanical Properties
| Solution-annealed plate | Value |
|---|---|
| Tensile strength | 750 MPa · 109 ksi |
| Yield strength 0.2% | 550 MPa · 80 ksi |
| Elongation | 25% |
| Hardness | 270 HB max |
Full chemistry, properties and equivalents are on the Super Duplex S32760 grade page.
Other Super Duplex S32760 flanges
Super Duplex S32760 Spectacle Blinds for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSuper Duplex S32760 Spectacle Blind — questions buyers ask
When should I use a spacer and paddle blank instead of a spectacle blind?
In large sizes a spectacle blind becomes too heavy and awkward, so ASME B16.48 provides separate paddle blanks and spacers.
Which standard covers Super Duplex S32760 spectacle blinds?
The material is ASTM A182 F55; dimensions follow ASME B16.48. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Super Duplex S32760 spectacle blind?
The alloy price, the size and pressure class, quantity, and the testing and documents required. Send your list and we quote the same working day.
Can you supply Super Duplex S32760 spectacle blinds to NACE MR0175?
Yes. Super Duplex S32760 is listed in NACE MR0175 / ISO 15156-3 within its limits; state NACE compliance on the order and it is confirmed on the certificate.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026