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ASTM B151 C71500 ANSI B16.5/B16.47 Copper Nickel Blind (BL) Flanges
Product Information
| Product Name | ASTM B151 C71500 ANSI B16.5/B16.47 Copper Nickel Blind (BL) Flanges |
| Size Range | 1/2’ to 48” |
| Pressure Class | 150, 300, 400, 600, 900, 1500, 2500, |
| Thickness | Sch10S to Sch160 |
| Standards | ASME/ANSI B16.5/B16.47, JIS B2220 |
| Type | Blind (BL) |
| Dimensions | ASME/ANSI B16.5/B16.47, Custom Drawings |
| Origin | China |
Standards & Materials: ASTM B151
Chemical Composition of ASTM B151 (%)
| UNS | C | Ni | Pb | Fe | Mn | Zn | P | S | C |
| C70600 | Remainder | 9.0-11.0 | 0.05 | 1.0-1.8 | 1.0 | 1.0 | |||
| C71500 | Remainder | 29.0-33.0 | 0.05 | 0.40-1.0 | 1.0 | 1.0 |
Mechanical Properties of ASTM B151 C71500
| Temper Code | Dia. or Distance Between Parallel Surfaces (mm) | Tensile Strength, min (MPa) | Yield Strength at 0.5%Extension Under Load, min (MPa) | Elongation in 4xDia or Thickness of Specimen, min (%) | |
| O60, M30 | Round, Hex and Octagonal rods and square bars | Up to 12, incl | 360 | 125 | 30 |
| Over 12 to 25, incl | 330 | 125 | 30 | ||
| Over 25 | 310 | 125 | 30 | ||
| H01 | Round, Hex and Octagonal rods and square bars | Up to 12, incl | 450 | 345 | 10 |
| Over 12 to 25, incl | 415 | 310 | 15 | ||
| Over 25 to 80, incl | 380 | 240 | 20 | ||
| Over 80 to 125, incl | 310 | 125 | 20 | ||
| H04 | Up to 12, incl | 550 | 415 | 8 | |
| Over 12 to 25, incl | 515 | 400 | 10 | ||
| Over 25 to 50, incl | 485 | 380 | 10 | ||
| O60 | Rectangular bars and shapes | All sizes | 310 | 105 | 30 |
| H04 | Rectangular bars | Up to 12, incl | 515 | 380 | 7 |
| Over 12 to 25, incl | 485 | 345 | 10 | ||
| H04 | Shapes | All sizes | (As agreed upon between the manufacturer or supplier and the purchaser) | ||
Blind Flange
Blind flanges manufactured in accordance with ASME B16.5 can be provided in Class 150 through Class 2500. It is basically a circular disc that does not have a hub or bored center. Bolts holes are drilled and aligned symmetrically along the circumferential edge of the solid disc. Generally the blind flange may be furnished with raised face (RF), ring join face (RJ), or flat face (FF). The blind flange serves a function similar to that of a plug or cap and is used to blank off the end of piping, valves and pressure vessel openings. It may be fabricated from cast, forgings, specific plates, or flat bars.
