ASTM A182 310 Spectacle Blind Flanges are safety devices used to isolate a piece of equipment or a section of line when the equipment or line needs to be inspected or removed from service. The A182 310 Spectacle Blind flange is formed by joining together two metal discs with a section of metal. 1.4841 Spectacle blinds are also known as figure8 flanges. The thickness of the A182 310 spectacle blind is specified based on the line pressure and pipe size. Tesco Steel & Engineering manufacture a wide range of high quality Spectacle Blind Flanges in India. We offer these flanges in ASME/ANSI/DIN standards.
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| SS 310 | 0.25 max | 2.00 max | 1.50 max | 0.045 max | 0.030 max | 24.00-26.00 | 19.00-21.00 |
| SS 310S | 0.080 max | 2.00 max | 1.50 max | 0.045 max | 0.030 max | 24.00-26.00 | 19.00-22.00 |
| Grade | Tensile Strength, MPa | Yield Strength, Min, Mpa | Elongation % min. | Hardness Rockwell HRB | Hardness Brinell HB |
|---|---|---|---|---|---|
| SS 310 | 515 | 205 | 40 | 92 max | 217 max |
| SS 310S | 515 | 205 | 40 | 95 max | 217 max |
| Standard | Werkstoff Nr. | UNS | JIS | BS | GOST | EN |
|---|---|---|---|---|---|---|
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | X15CrNi25-20 |
| SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | X8CrNi25-21 |
| ASTM A182 F310 Spectacle Blind Flanges are available in the following specifications: | |
|---|---|
| Size | 1/2"NB to 56"NB |
| Class | 150#, 300#, 3000#, 6000#, 9000# |
| Sch (Schedule) | XS, XXS, STD & Schedule 20, 40, 80, 160 |
| Pressure Ratings | PN 1 - PN 400 |
| Other Services | Hot Dip Galvanized (GI) ASTM A182 F310 Spectacle Blind Flanges Sand Blasting on ASTM A182 F310 Spectacle Blind Flanges Shot Peening on ASTM A182 F310 Spectacle Blind Flanges Epoxy Coating on ASTM A182 F310 Spectacle Blind Flanges FBE Coating on ASTM A182 F310 Spectacle Blind Flanges |
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