Table Flanges
What are Table Flanges?
Table Flanges are standard flanges defined by the British Standard BS 10, classified into tables such as Table D, Table E, Table F, and others. These flanges are designed for low to medium pressure piping systems, commonly used in water supply, gas pipelines, HVAC systems, and general engineering applications.
Asiad Steel Industries manufactures and supplies Table Flanges in carbon steel, stainless steel, alloy steel, and special alloys, ensuring durability, precise dimensions, and international quality compliance.
Key Features
Strong &
Reliable Connection
Durable
Construction
Easy Installation
& Removal
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Pipe Size (NPS) | ½” to 24” (DN15 – DN600) |
| Pressure Ratings | BS 10 Tables | Table D, E, F, H |
| Flange Face Types | Standard Faces | Raised Face (RF), Flat Face (FF) |
| Connection Types | Joining | Slip-On, Weld Neck, Blind, Threaded Flanges |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L |
| Carbon Steel | CS A105, CS IS2062 | |
| Alloy & Duplex | Inconel, Monel, Duplex 2205, Super Duplex 2507 | |
| Standards & Certifications | BS Standards | BS 10 (Tables D–H) |
| Quality | ISO 9001, NACE MR0175, PED 2014/68/EU |
Table D Flanges Dimensions (in mm)
| NPS (inches) | OD (mm) | Bolt Circle (mm) | No. of Bolts | Bolt Hole Dia. (mm) | Flange Thickness (mm) | Bore (mm) |
|---|---|---|---|---|---|---|
| ½” | 89 | 60.3 | 4 | 12 | 11.2 | 15 |
| ¾” | 98.6 | 69.9 | 4 | 12 | 12.7 | 20 |
| 1” | 108 | 79.4 | 4 | 12 | 12.7 | 25 |
| 1 ½” | 127 | 98.4 | 4 | 12 | 14.3 | 40 |
| 2” | 152 | 120.6 | 4 | 12 | 16 | 50 |
| 3” | 191 | 152.4 | 4 | 16 | 19 | 80 |
| 4” | 229 | 190.5 | 4 | 16 | 24 | 100 |
| 6” | 279 | 241.3 | 8 | 16 | 25.4 | 150 |
| 8” | 343 | 298.5 | 8 | 16 | 29.9 | 200 |
| 10” | 406 | 362 | 8 | 19 | 30.2 | 250 |
| 12” | 483 | 431.8 | 8 | 19 | 31.8 | 300 |
Table E Flanges Dimensions (in mm)
| NPS (inches) | OD (mm) | Bolt Circle (mm) | No. of Bolts | Bolt Hole Dia. (mm) | Flange Thickness (mm) | Bore (mm) |
|---|---|---|---|---|---|---|
| ½” | 89 | 60.3 | 4 | 16 | 11.2 | 15 |
| ¾” | 98.6 | 69.9 | 4 | 16 | 12.7 | 20 |
| 1” | 108 | 79.4 | 4 | 16 | 12.7 | 25 |
| 1 ½” | 127 | 98.4 | 4 | 16 | 14.3 | 40 |
| 2” | 152 | 120.6 | 4 | 19 | 16 | 50 |
| 3” | 191 | 152.4 | 4 | 19 | 19 | 80 |
| 4” | 229 | 190.5 | 8 | 19 | 24 | 100 |
| 6” | 279 | 241.3 | 8 | 22 | 25.4 | 150 |
| 8” | 343 | 298.5 | 8 | 22 | 29.9 | 200 |
| 10” | 406 | 362 | 12 | 25 | 30.2 | 250 |
| 12” | 483 | 431.8 | 12 | 25 | 31.8 | 300 |
Table F Flanges Dimensions (in mm)
| NPS (inches) | OD (mm) | Bolt Circle (mm) | No. of Bolts | Bolt Hole Dia. (mm) | Flange Thickness (mm) | Bore (mm) |
|---|---|---|---|---|---|---|
| ½” | 95 | 66.7 | 4 | 16 | 16 | 15 |
| ¾” | 117 | 82.6 | 4 | 16 | 17.5 | 20 |
| 1” | 124 | 88.9 | 4 | 16 | 18 | 25 |
| 1 ½” | 156 | 114.3 | 4 | 19 | 20.6 | 40 |
| 2” | 165 | 127 | 4 | 19 | 21 | 50 |
| 3” | 210 | 168.3 | 8 | 19 | 24 | 80 |
| 4” | 254 | 200 | 8 | 22 | 27 | 100 |
| 6” | 318 | 269.9 | 8 | 22 | 33 | 150 |
| 8” | 381 | 330.2 | 8 | 25 | 37 | 200 |
| 10” | 445 | 387.3 | 12 | 29 | 44 | 250 |
| 12” | 521 | 451.1 | 12 | 29 | 48 | 300 |
Table H Flanges Dimensions (in mm)
| NPS (inches) | OD (mm) | Bolt Circle (mm) | No. of Bolts | Bolt Hole Dia. (mm) | Flange Thickness (mm) | Bore (mm) |
|---|---|---|---|---|---|---|
| ½” | 95 | 66.7 | 4 | 16 | 20 | 15 |
| ¾” | 117 | 82.6 | 4 | 16 | 21 | 20 |
| 1” | 124 | 88.9 | 4 | 19 | 22 | 25 |
| 1 ½” | 156 | 114.3 | 4 | 19 | 24 | 40 |
| 2” | 165 | 127 | 4 | 19 | 25 | 50 |
| 3” | 210 | 168.3 | 8 | 22 | 29 | 80 |
| 4” | 254 | 200 | 8 | 22 | 32 | 100 |
| 6” | 318 | 269.9 | 12 | 25 | 38 | 150 |
| 8” | 381 | 330.2 | 12 | 29 | 44 | 200 |
| 10” | 445 | 387.3 | 16 | 29 | 50 | 250 |
| 12” | 521 | 451.1 | 16 | 32 | 56 | 300 |
Mechanical Properties
| Property | Table D Flanges | Table E Flanges | Table F/H Flanges | Unit / Standard |
|---|---|---|---|---|
| Tensile Strength | 410 – 485 | 485 – 550 | 550 – 620 | MPa |
| Yield Strength | 170 – 210 | 200 – 240 | 240 – 275 | MPa |
| Hardness | 110 – 140 | 120 – 160 | 130 – 170 | HB (Brinell) |
| Elongation | ≥ 25 – 30 | ≥ 22 – 28 | ≥ 20 – 25 | % |
| Density | 7.85 | 7.85 | 7.85 | g/cm³ |
| Impact Toughness | ≥ 27 | ≥ 27 – 50 | ≥ 27 – 60 | J (Charpy) |
| Modulus of Elasticity (E) | ~200 | ~200 | ~200 | GPa |
| Fatigue Strength | ~180 | ~200 | ~220 | MPa |
| Corrosion Resistance | Good (CS, coated) | Good to Excellent (CS/SS) | Excellent (SS, alloy) | – |
| Thermal Conductivity | 15 – 45 | 15 – 45 | 15 – 45 | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×10⁻⁶ | 11 – 17 ×10⁻⁶ | 11 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.35 – 0.45 | 0.40 – 0.50 | 0.40 – 0.55 | – |
| Poisson’s Ratio | 0.27 – 0.30 | 0.27 – 0.30 | 0.27 – 0.30 | – |
| Brinell Hardness Range | 110 – 140 | 120 – 160 | 130 – 170 | HB |
| Surface Finish | Machined / Serrated (per BS 10) | Machined / Serrated | Machined / Serrated | – |
| Operating Temperature Range | -29 to 400 | -29 to 450 | -29 to 600 | °C |
| Pressure Rating | Low Pressure (≤ 150 psi) | Medium Pressure (up to 300 psi) | Higher Pressure (up to 600 psi) | BS 10 Standard |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of Table Flanges
Construction &
Infrastructure
Power Generation &
Energy Sector
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the difference between Table D, E, and F flanges?
Are Table Flanges the same as ASA/ANSI flanges?
Where are Table Flanges most commonly used?
Can ASA flanges be customized?
