AS 2129 Table E Flanges Manufacturer
We specialize in producing the high-quality of AS 2129 E flanges for pipeline applications across various industries.
AS2129 flanges originates from BS10 and has been metricated. In some cases slightly larger bolt holes provide better clearance as metric bolts are specified in lieu of UNC bolts used by BS10. AS4087 is an update of AS2129, however AS2129 is still widely used so it has not been deleted as a standard, however, it now only covers AS 2129 table D to H.
AS 2129 Table E Flanges are widely used in pipeline applications across petrochemical, water treatment, desalination, food processing, and industrial sectors.
Flanges made from SS 316 or 316L (AISI 316/316L) provide enhanced resistance to corrosion, pitting, and stress corrosion cracking — especially in chloride and aggressive environments.
Standard: AS 2129 – Flanges for pipes, valves, and fittings
⬇️ Download AS2129 standard PDF
This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee ME/1, Pressure Equipment Standard to supersede AS 2129—1994.
This Standard is the result of a consensus among representatives on the Joint Committee to produce it as an Australian Standard. Consensus means general agreement by all interested parties. Consensus includes an attempt to remove all objections and implies much more than the concept of a simple majority, but not necessarily unanimity. It is consistent with this meaning that a member may be included in the Committee list and yet not be in full agreement with all clauses of this Standard.
This Standard is derived from the British inch series flange Standard BS 10:1962, Flanges and bolting for pipes, valves and fittings. BS 10 was made obsolescent in 1970, however, it is still called up in British pressure equipment Standards. A 1992 survey of Australian industry showed that flanges in accordance with AS 2129 were still in great demand. As a result it was determined that AS 2129 should be revised and updated rather than being made obsolescent.
Specification of AS 2129 Table E Flanges
Flange Types
AS 2129 covers a range of flange types, including:
✅ Plate Flanges (Table D, E, F, H)
✅ Blind Flanges (Table D, E, F, H)
✅ Threaded Flanges (Table D, E, F)
✅ Bossed Flanges
✅ Weld Neck Flanges (with raised face or flat face)
✅ Slip-On Flanges (with raised face or flat face)
Flange Size Range
- Size (Nominal Bore): DN15 (1/2″) — DN1200 (48″) or larger upon request
- Flange Thickness: varies by pressure class and size
- Flange Facing: flat face or raised face as per AS 2129 standard
- Pressure Rating: Table D, E, F, and H (depending on application)
AS 2129 Table E Flange Material
AS 2129 flanges can be manufactured from a range of materials, including:
✅ Carbon Steel (ST37.S235JR.A105)
✅ Stainless Steel (304, 304L, 316, 316L) Super Duplex S31803,S32750
✅ Other materials upon request (Nickel Alloys, Copper Alloys, Super Duplex)
General Dimensions (AS 2129)
AS 2129 specifies:
- Flange Thickness (T)
- Flange Outer Diameter (D)
- Bolt Circle Diameter (G)
- Number of Bolt Holes (Z) and Bolt Size (Thread)
- Bolt Hole Size (H)
- Flange Facing Type (Raised or Flat)
AS 2129 Table E Backing ring flange Dimensions.
| Nominal Pipe OD | Flange Size | OD | ID | Minimum Thickness | PCD | Bolt Hole No. x Dia. | Bolt Size |
| 20 | 15 | 95 | 28 | 6 | 67 | 4X14 | M12 |
| 25 | 20 | 100 | 34 | 6 | 73 | 4X14 | M12 |
| 32 | 25 | 115 | 42 | 7 | 83 | 4X14 | M12 |
| 40 | 32 | 120 | 51 | 8 | 87 | 4X14 | M12 |
| 50 | 40 | 135 | 62 | 9 | 98 | 4X14 | M12 |
| 63 | 50 | 150 | 78 | 10 | 114 | 4X18 | M16 |
| 75 | 65 | 165 | 92 | 10 | 127 | 4X18 | M16 |
| 90 | 80 | 185 | 108 | 11 | 146 | 4X18 | M16 |
| 110 | 100 | 215 | 128 | 13 | 180 | 8X18 | M16 |
| 125 | 100 | 215 | 135 | 13 | 210 | 8X18 | M16 |
| 125 | 125 | 255 | 140 | 14 | 210 | 8X18 | M16 |
| 140 | 125 | 255 | 158 | 14 | 210 | 8X18 | M16 |
| 160 | 150 | 280 | 178 | 17 | 235 | 8X22 | M20 |
| 180 | 150 | 280 | 188 | 17 | 235 | 8X22 | M20 |
| 200 | 200 | 335 | 235 | 19 | 292 | 8X22 | M20 |
| 225 | 200 | 335 | 238 | 19 | 292 | 8X22 | M20 |
| 250 | 250 | 405 | 288 | 22 | 356 | 12X22 | M20 |
| 280 | 250 | 405 | 294 | 22 | 356 | 12X22 | M20 |
| 315 | 300 | 455 | 338 | 25 | 406 | 12X26 | M24 |
| 355 | 350 | 525 | 376 | 29 | 470 | 12X26 | M24 |
| 400 | 400 | 580 | 430 | 32 | 521 | 12X26 | M24 |
| 450 | 450 | 640 | 470 | 35 | 584 | 16X26 | M24 |
| 500 | 500 | 705 | 533 | 38 | 641 | 16X26 | M24 |
| 560 | 550 | 760 | 618 | 44 | 699 | 16X30 | M27 |
| 630 | 600 | 825 | 645 | 48 | 756 | 16X33 | M30 |
| 710 | 700 | 910 | 740 | 51 | 845 | 20X33 | M30 |
| 800 | 800 | 1060 | 843 | 54 | 984 | 20X36 | M33 |
| 900 | 900 | 1175 | 947 | 64 | 1092 | 24X36 | M33 |
| 1000 | 1000 | 1255 | 1050 | 67 | 1175 | 24X39 | M36 |
Order AS 2129 Table E flanges with full traceability, mill test certificates, and material options tailored to your project. Contact us for pricing, datasheets, and bulk order support.
