ASME B16.47 Series B · ASTM A105 · stock and made to order
58″ Class 150 Blind Flange — ASME B16.47 Series B
58″ Class 150 blind flange to ASME B16.47 Series B, machined from ASTM A105. Outside diameter 1675 mm, thickness 91.9 mm, 48 bolt holes on a 1611.3 mm circle, approximate weight 1615 kg. Available with raised face, flat face or the facing specified on your drawing.
Size
58″ / DN1450
Standard
ASME B16.47 Series B (ASME B16.47-2025, Series B)
Pressure rating
Class 150
Outside diameter
1675 mm (65.94″)
Thickness
91.9 mm (3.62″)
Bolt circle
1611.3 mm (63.44″)
Approx. weight
1615 kg
Full dimensions — 58″ Class 150
| Size | DN | OD | Thickness | RF Ø | Bolt circle | Bolts | Weight | |
|---|---|---|---|---|---|---|---|---|
| 26″ | 650 | 786 mm (30.94″) | 42.9 mm (1.69″) | 711 mm (27.99″) | 744.5 mm (29.31″) | 36 × Ø22.2 mm (0.87″) | 170 kg | Details → |
| 28″ | 700 | 837 mm (32.95″) | 46.2 mm (1.82″) | 762 mm (30″) | 795.3 mm (31.31″) | 40 × Ø22.2 mm (0.87″) | 206 kg | Details → |
| 30″ | 750 | 887 mm (34.92″) | 49.2 mm (1.94″) | 813 mm (32.01″) | 846.1 mm (33.31″) | 44 × Ø22.2 mm (0.87″) | 247 kg | Details → |
| 32″ | 800 | 941 mm (37.05″) | 52.6 mm (2.07″) | 864 mm (34.02″) | 900.1 mm (35.44″) | 48 × Ø22.2 mm (0.87″) | 294 kg | Details → |
| 34″ | 850 | 1005 mm (39.57″) | 55.6 mm (2.19″) | 921 mm (36.26″) | 957.3 mm (37.69″) | 40 × Ø25.4 mm (1″) | 355 kg | Details → |
| 36″ | 900 | 1057 mm (41.61″) | 57.2 mm (2.25″) | 972 mm (38.27″) | 1009.6 mm (39.75″) | 44 × Ø25.4 mm (1″) | 404 kg | Details → |
| 38″ | 950 | 1124 mm (44.25″) | 61.9 mm (2.44″) | 1022 mm (40.24″) | 1069.8 mm (42.12″) | 40 × Ø28.6 mm (1.13″) | 494 kg | Details → |
| 40″ | 1000 | 1175 mm (46.26″) | 65.3 mm (2.57″) | 1080 mm (42.52″) | 1120.6 mm (44.12″) | 44 × Ø28.6 mm (1.13″) | 566 kg | Details → |
| 42″ | 1050 | 1226 mm (48.27″) | 66.7 mm (2.63″) | 1130 mm (44.49″) | 1171.4 mm (46.12″) | 48 × Ø28.6 mm (1.13″) | 632 kg | Details → |
| 44″ | 1100 | 1276 mm (50.24″) | 69.9 mm (2.75″) | 1181 mm (46.5″) | 1222.2 mm (48.12″) | 52 × Ø28.6 mm (1.13″) | 716 kg | Details → |
| 46″ | 1150 | 1341 mm (52.8″) | 73.2 mm (2.88″) | 1235 mm (48.62″) | 1284.3 mm (50.56″) | 40 × Ø31.8 mm (1.25″) | 828 kg | Details → |
| 48″ | 1200 | 1392 mm (54.8″) | 76.2 mm (3″) | 1289 mm (50.75″) | 1335.1 mm (52.56″) | 44 × Ø31.8 mm (1.25″) | 928 kg | Details → |
| 50″ | 1250 | 1443 mm (56.81″) | 79.4 mm (3.13″) | 1340 mm (52.76″) | 1385.9 mm (54.56″) | 48 × Ø31.8 mm (1.25″) | 1036 kg | Details → |
| 52″ | 1300 | 1494 mm (58.82″) | 82.6 mm (3.25″) | 1391 mm (54.76″) | 1436.7 mm (56.56″) | 52 × Ø31.8 mm (1.25″) | 1155 kg | Details → |
| 54″ | 1350 | 1549 mm (60.98″) | 85.9 mm (3.38″) | 1441 mm (56.73″) | 1492.2 mm (58.75″) | 56 × Ø31.8 mm (1.25″) | 1292 kg | Details → |
| 56″ | 1400 | 1600 mm (62.99″) | 88.9 mm (3.5″) | 1492 mm (58.74″) | 1543 mm (60.75″) | 60 × Ø31.8 mm (1.25″) | 1427 kg | Details → |
| 58″ (this size) | 1450 | 1675 mm (65.94″) | 91.9 mm (3.62″) | 1543 mm (60.75″) | 1611.3 mm (63.44″) | 48 × Ø34.9 mm (1.37″) | 1615 kg | Details → |
| 60″ | 1500 | 1726 mm (67.95″) | 95.3 mm (3.75″) | 1600 mm (62.99″) | 1662.1 mm (65.44″) | 52 × Ø34.9 mm (1.37″) | 1775 kg | Details → |
Published ASME B16.47 Series B dimensions for every Class 150 size in this product family.
Dimensions in millimetres; the inch equivalent is shown in brackets. Bolt hole diameter applies to through-holes. For stud length, gasket and bolting selection, match the gasket and bolts to B16.47 B.
What Class 150 means in service
Series B follows the former API 605 dimensions, with a smaller outside diameter and a different bolt pattern from Series A. Ratings are ASME classes 150, 300, 400, 600 and 900, with allowable pressure from the B16.47 tables.
Series B follows the former API 605 dimensions, with a smaller outside diameter and a different bolt pattern from Series A. Ratings are ASME classes 150, 300, 400, 600 and 900, with allowable pressure from the B16.47 tables.
Facing and materials
Raised face (RF) is standard: 1.5 mm high for Classes 75, 150 and 300; 6.4 mm for Classes 400, 600 and 900. FF and RTJ faces are available to drawing.
- ASTM A105 / A105N
- ASTM A350 LF2
- ASTM A182 F304/F316L
- ASTM A694 F52/F60/F65
- ASTM A182 F51/F53
Other grades, impact-tested heats and NACE MR0175 requirements are quoted on request. Material certificates to EN 10204 3.1 are issued against the same heat number as the dimensional report.
Inspection and delivery
- Dimensional inspection against the B16.47 B table for 58″ Class 150
- Heat number stamped on the rim; EN 10204 3.1 certificate issued
- PMI on stainless and alloy heats; UT/RT on request
- Anti-rust oil, plywood case or pallet, with packing list and MTC
- Typical lead time 7–15 days for carbon steel stock sizes, 20–30 days for alloys
Other sizes in Class 150
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58″ Class 150 Blind Flange
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