Aluminum bronze flanges are essential components in various industrial applications, known for their exceptional corrosion resistance, high strength, and excellent thermal and electrical conductivity. These flanges are made from aluminum bronze alloys, which typically consist of copper, aluminum, and other alloying elements.
Corrosion Resistance: One of the most prominent characteristics of aluminum bronze flanges is their exceptional resistance to corrosion. These flanges can withstand harsh environmental conditions, making them suitable for applications in marine environments, chemical processing, and offshore oil and gas platforms. The protective oxide layer that forms on the surface of aluminum bronze further enhances their resistance to corrosion.
Table of Content
High Strength: Aluminum bronze flanges offer high tensile and yield strengths, making them suitable for heavy-duty applications. They can endure extreme pressure and temperature conditions, making them a preferred choice for critical connections in pipelines and industrial machinery.
Thermal and Electrical Conductivity: Aluminum bronze alloys have excellent thermal and electrical conductivity. This property is crucial in applications where heat dissipation or electrical grounding is essential, such as in electrical connectors or heat exchangers. The high thermal conductivity of aluminum bronze helps prevent localized overheating, ensuring the longevity of the flanges.
Machinability: Aluminum bronze flanges are readily machinable, allowing for customization and precise fitting in various applications. Their machinability ensures that these flanges can be easily adapted to specific project requirements, simplifying the installation process.
Weldability: Aluminum bronze alloys exhibit good weldability, making them suitable for fabrication and repair work. Proper welding procedures are necessary to maintain the material’s integrity and avoid compromising its corrosion resistance.
Applications: Aluminum bronze flanges find use in a wide range of industries, including petrochemical, offshore, marine, and power generation. They are commonly employed in the construction of pipelines, heat exchangers, seawater cooling systems, and various heavy machinery components. These flanges provide longevity and reliability in demanding environments.
Size Range | 1/2″ to 48″ |
Chart of Pressure Rating | 300 LBS, 2500 LBS, 1500 LBS, 900 LBS, 150 LBS, 600 LBS |
JIS | 40 K, 16 K, 5K, 10 K, 30 K, 20 K, 63 K |
DIN Pressure Calculation | 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40 |
Manufacturer of Connect / Flange Face Type | LJF, RF, RTJ, FF, Small Tongue, Large Tongue & Groove |
Test< | Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Direct-reading Spectrograph, Hydrostatic testing machine |
Origin | Japan / West Europe / Indian / USA / Korean |
Manufacturer of | GOST, JIS, ANSI, DIN, UNI, BS, AWWA, AS2129, SABS, NFE, EN etc. |
UNI / EN | 16Bar 6Bar 40Bar 10Bar 25Bar |
Standards Provided By Manufacturer | ISO70051, MSS S44, BS1560-3.1, API7S-43, B16.48, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, API605, BS 10, EN-1092, DIN, API7S-15, EN1092 |
Common Types By Manufacturer | Threaded / Screwed / Forged / Plate |
Equipment | Pushing Machine, Press machine, Sand-blasting machine, Bending machine, electric bevelling machine etc |
Production technique Used By Manufacturer | Heat treated, Forged and machined |
Coating | Zinc Plated, Anti-rust Paint, Yellow Transparent, Oil Black Paint, Cold and Hot Dip Galvanized |
Flange NPS | H | Inside Diameter |
Flat Face Thickness (T2) |
Outside Diameter |
Raised Face (RF) |
Raised Face (R) |
H1 | Raised Face Thickness (T) |
T1 | Bolt Circle (BC) |
Bolt Hole (B) |
No. of Bolt Holes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2″ | 1.19″ | 0.62″ | 1.82″ | 3.50″ | .063″ | 1.38″ | 0.84″ | 1.88″ | .38″ | 2.38″ | .62″ | 4 |
1-1/4″ | 2.31″ | 1.38″ | 2.19″ | 4.62″ | .063″ | 2.50″ | 1.66″ | 2.25″ | .56″ | 3.50″ | .62″ | 4 |
3/4″ | 1.50″ | 0.82″ | 2.00″ | 3.88″ | .063″ | 1.69″ | 1.05″ | 2.06″ | .44″ | 2.75″ | .62″ | 4 |
1-1/2″ | 2.56″ | 1.61″ | 2.38″ | 5.00″ | .063″ | 2.88″ | 1.90″ | 2.44″ | .62″ | 3.88″ | .62″ | 4 |
1″ | 1.94″ | 1.05″ | 2.13″ | 4.25″ | .063″ | 2.00″ | 1.32″ | 2.19″ | .50″ | 3.12″ | .62″ | 4 |
2″ | 3.06″ | 2.07″ | 2.44″ | 6.00″ | .063″ | 3.62″ | 2.38″ | 2.50″ | .69″ | 4.75″ | .75″ | 4 |
2-1/2″ | 3.56″ | 2.47″ | 2.69″ | 7.00″ | .063″ | 4.12″ | 2.88″ | 2.75″ | .82″ | 5.50″ | .75″ | 4 |
3″ | 4.25″ | 3.07″ | 2.69″ | 7.50″ | .063″ | 5.00″ | 3.50″ | 2.75″ | .88″ | 6.00″ | .75″ | 4 |
4″ | 5.31″ | 4.03″ | 2.94″ | 9.00″ | .063″ | 6.19″ | 4.50″ | 3.00″ | .88″ | 7.50″ | .75″ | 8 |
5″ | 6.44″ | 5.05″ | 3.44″ | 10.00″ | .063″ | 7.31″ | 5.56″ | 3.50″ | .88″ | 8.50″ | .88″ | 8 |
3-1/2″ | 4.81″ | 3.55″ | 2.75″ | 8.50″ | .063″ | 5.50″ | 4.00″ | 2.81″ | .88″ | 7.00″ | .75″ | 8 |
6″ | 7.56″ | 6.07″ | 3.44″ | 11.00″ | .063″ | 8.50″ | 6.63″ | 3.50″ | .94″ | 9.50″ | .88″ | 8 |
8″ | 9.69″ | 7.98″ | 3.94″ | 13.50″ | .063″ | 10.62″ | 8.63″ | 4.00″ | 1.06″ | 11.75″ | .88″ | 8 |
22″ | 24.25″ | 21.25″ | 5.82″ | 29.50″ | .063″ | 25.25″ | 22.00″ | 5.88″ | 1.75″ | 27.25″ | 1.38″ | 20 |
10″ | 12.00″ | 10.02″ | 3.94″ | 16.00″ | .063″ | 12.75″ | 10.75″ | 4.00″ | 1.13″ | 14.25″ | 1.00″ | 12 |
12″ | 14.38″ | 12.00″ | 4.44″ | 19.00″ | .063″ | 15.00″ | 12.75″ | 4.50″ | 1.19″ | 17.00″ | 1.00″ | 12 |
16″ | 18.00″ | 15.25″ | 4.94″ | 23.50″ | .063″ | 18.50″ | 16.00″ | 5.00″ | 1.38″ | 21.25″ | 1.12″ | 16 |
18″ | 19.88″ | 17.25″ | 5.44″ | 25.00″ | .063″ | 21.00″ | 18.00″ | 5.50″ | 1.50″ | 22.75″ | 1.25″ | 16 |
14″ | 15.75″ | 13.25″ | 4.94″ | 21.00″ | .063″ | 16.25″ | 14.00″ | 5.00″ | 1.32″ | 18.75″ | 1.12″ | 12 |
20″ | 22.00″ | 19.25″ | 5.63″ | 27.50″ | .063″ | 23.00″ | 20.00″ | 5.69″ | 1.63″ | 25.00″ | 1.25″ | 20 |
24″ | 26.12″ | 23.25″ | 5.94″ | 32.00″ | .063″ | 27.25″ | 24.00″ | 6.00″ | 1.82″ | 29.50″ | 1.38″ | 20 |
Size in Inch | Size in mm | ISO Stud Size | RF Height | Outer Dia. | RF Dia. | Hole Size | PCD | No of Bolts | Bolt Size UNC | Flange Thickness | RF Stud Length | Weight in kg |
D | A | C | E | B | ||||||||
1/2 | 15 | M20 | 7 | 135 | 34.9 | 7/8 | 88.9 | 4 | 3/4 | 30.2 | 120 | 3.2 |
3/4 | 20 | M20 | 7 | 140 | 42.9 | 7/8 | 95.2 | 4 | 3/4 | 31.8 | 125 | 3.7 |
1 | 25 | M24 | 7 | 160 | 50.8 | 1 | 108 | 4 | 7/8 | 35 | 140 | 5 |
1 1/4 | 32 | M27 | 7 | 185 | 63.5 | 1 1/8 | 130.2 | 4 | 1 | 38.1 | 150 | 7.8 |
1 1/2 | 40 | M30 | 7 | 205 | 73 | 1 1/4 | 146 | 4 | 1 1/8 | 44.5 | 170 | 10.5 |
2 | 50 | M27 | 7 | 235 | 92.1 | 1 1/8 | 171.4 | 8 | 1 | 50.9 | 180 | 18 |
2 1/2 | 65 | M30 | 7 | 265 | 104.8 | 1 1/4 | 196.8 | 8 | 1 1/8 | 57.2 | 195 | 25.5 |
3 | 80 | M33 | 7 | 305 | 127 | 1 3/8 | 228.6 | 8 | 1 1/4 | 66.7 | 220 | 39 |
4 | 100 | M39 | 7 | 355 | 157.2 | 1 5/8 | 273 | 8 | 1 1/2 | 76.2 | 255 | 61.5 |
5 | 125 | M45 | 7 | 420 | 185.7 | 1 7/8 | 323.8 | 8 | 1 3/4 | 92.1 | 300 | 102 |
6 | 150 | M52 | 7 | 485 | 215.9 | 2 1/8 | 368.3 | 8 | 2 | 108 | 345 | 157 |
8 | 200 | M52 | 7 | 550 | 269.9 | 2 1/8 | 438.2 | 12 | 2 | 127 | 380 | 241 |
10 | 250 | M64 | 7 | 675 | 323.8 | 2 5/8 | 539.8 | 12 | 2 1/2 | 165.1 | 490 | 470 |
12 | 300 | M72 | 7 | 760 | 381 | 2 7/8 | 619.1 | 12 | 2 3/4 | 184.2 | 540 | 575 |
Size in Inch | Size in mm | No of Bolts | Outer Dia. | Hub OD | ISO Stud Size | Flange Length | RF Height | Flange Thick. | RF Dia. | PCD | Hole Size | Socket Bore | Weight in kg |
A | C | D | F | B | E | G | H | ||||||
1/2 | 15 | 4 | 90 | 30 | M14 | 14 | 2 | 9.6 | 34.9 | 60.3 | 5/8 | 22.2 | 0.8 |
1 | 25 | 4 | 110 | 49 | M14 | 16 | 2 | 12.7 | 50.8 | 79.4 | 5/8 | 34.5 | 0.9 |
3/4 | 20 | 4 | 100 | 38 | M14 | 14 | 2 | 11.2 | 42.9 | 69.9 | 5/8 | 27.7 | 0.9 |
1 1/4 | 32 | 4 | 115 | 59 | M14 | 19 | 2 | 14.3 | 63.5 | 88.9 | 5/8 | 43.2 | 1.4 |
2 | 50 | 4 | 150 | 78 | M16 | 24 | 2 | 17.5 | 92.1 | 120.7 | 3/4 | 61.9 | 2.3 |
1 1/2 | 40 | 4 | 125 | 65 | M14 | 21 | 2 | 15.9 | 73 | 98.4 | 5/8 | 49.5 | 1.4 |
2 1/2 | 65 | 4 | 180 | 90 | M16 | 27 | 2 | 20.7 | 104.8 | 139.7 | 3/4 | 74.6 | 3.2 |
3 | 80 | 4 | 190 | 108 | M16 | 29 | 2 | 22.3 | 127 | 152.4 | 3/4 | 90.7 | 3.7 |
4 | 100 | 8 | 230 | 135 | M16 | 32 | 2 | 22.3 | 157.2 | 190.5 | 3/4 | 116.1 | 5.9 |
3 1/2 | 90 | 8 | 215 | 122 | M16 | 30 | 2 | 22.3 | 139.7 | 177.8 | 3/4 | 103.4 | 5 |
5 | 125 | 8 | 255 | 164 | M20 | 35 | 2 | 22.3 | 185.7 | 215.9 | 7/8 | 143.8 | 6.8 |
8 | 200 | 8 | 345 | 246 | M20 | 43 | 2 | 27 | 269.9 | 298.5 | 7/8 | 221.5 | 13.7 |
10 | 250 | 12 | 405 | 305 | M24 | 48 | 2 | 28.6 | 323.8 | 362 | 1 | 276.2 | 19.5 |
6 | 150 | 8 | 280 | 192 | M20 | 38 | 2 | 23.9 | 215.9 | 241.3 | 7/8 | 170.7 | 8.6 |
12 | 300 | 12 | 485 | 365 | M24 | 54 | 2 | 30.2 | 381 | 431.8 | 1 | 327 | 29 |
24 | 600 | 20 | 815 | 663 | M33 | 81 | 2 | 46.1 | 692.2 | 749.3 | 1 3/8 | 616 | 100 |
16 | 400 | 16 | 595 | 457 | M27 | 62 | 2 | 35 | 469.9 | 539.8 | 1 1/8 | 410.5 | 54 |
18 | 450 | 16 | 635 | 505 | M30 | 67 | 2 | 38.1 | 533.4 | 577.9 | 1 1/4 | 461.8 | 59 |
14 | 350 | 12 | 535 | 400 | M27 | 56 | 2 | 33.4 | 412.8 | 476.3 | 1 1/8 | 359.2 | 41 |
20 | 500 | 20 | 700 | 559 | M30 | 71 | 2 | 41.3 | 584.2 | 635 | 1 1/4 | 513.1 | 75 |
NPS (Nominal Pipe Size) | Loose (Lap Joint) | NPT (Threaded) | SORF (Slip On) | BLRF (Blind) | SWRF (Socket Weld) | WRNR (Weld Neck) |
---|---|---|---|---|---|---|
½ | 1 | 1 | 1 | 2 | 2 | 2 |
1 | 2 | 2 | 2 | 2 | 2 | 3 |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 |
1½ | 3 | 3 | 3 | 4 | 3 | 4 |
2½ | 8 | 8 | 8 | 7 | 8 | 10 |
2 | 5 | 5 | 5 | 5 | 5 | 6 |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 |
4 | 13 | 13 | 13 | 17 | 13 | 16.5 |
3½ | 11 | 12 | 11 | 13 | 11 | 12 |
5 | 15 | 15 | 15 | 20 | 15 | 21 |
8 | 30 | 30 | 30 | 47 | 30 | 42 |
6 | 19 | 19 | 19 | 27 | 19 | 26 |
10 | 43 | 43 | 43 | 70 | 43 | 54 |
24 | 275 | 220 | 220 | 430 | 220 | 268 |
14 | 105 | 90 | 90 | 140 | 90 | 114 |
12 | 64 | 64 | 64 | 123 | 64 | 88 |
16 | 140 | 98 | 106 | 180 | 98 | 140 |
20 | 195 | 165 | 165 | 285 | 165 | 197 |
18 | 160 | 130 | 130 | 220 | 130 | 165 |
22 | 245 | 185 | 185 | 355 | 185 | 225 |
Service Temperature °C |
Pressure, bar | |||||
---|---|---|---|---|---|---|
Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 | Class 2500 | |
-29 to 38 | 16.3 | 42.6 | 85.2 | 127.7 | 212.9 | 354.9 |
65 | 15.5 | 40.5 | 81.1 | 121.6 | 202.6 | 337.7 |
100 | 15.2 | 39.7 | 79.4 | 119.1 | 198.5 | 330.9 |
125 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
150 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
175 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
200 | 13.8 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
225 | 13.0 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
250 | 12.1 | 34.5 | 69.3 | 103.9 | 173.1 | 288.6 |
275 | 11.2 | 29.3 | 58.6 | 87.8 | 146.4 | 244.0 |
300 | 8.9 | 23.2 | 46.5 | 69.7 | 116.2 | 193.7 |
325 | 7.0 | 19.1 | 36.3 | 54.4 | 90.7 | 151.1 |
Nominal Pipe Size (inch) |
Dia. of Flange (inch) |
No. of Bolts |
Dia. of Bolts (inch) |
Dia. of Bolt Holes (inch) |
Bolt Circle (inch) |
---|---|---|---|---|---|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
12 | 19 | 12 | 7/8 | 1 | 17 |
18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
Element | Content (%) |
---|---|
Copper, Cu | 82.7 |
Aluminium, Al | 12.5-13.5 |
Iron, Fe | 3.5-5.0 |
Manganese, Mn | ≤2.0 |
Other | ≤0.5 |
Properties | Metric | Imperial |
---|---|---|
Hardness, Rockwell C | 27 | 27 |
Tensile strength (M30 and O61 tempers) | 690 MPa | 100000 psi |
Yield strength (M30 and O61 tempers) | 380 MPa | 55100 psi |
Elongation at break (in 50 mm, 1% reduction in area) | 1.00% | 1.00% |
Elastic modulus | 117 GPa | 17000 ksi |
Compressive yield strength (at permanent set of 0.1%) | 450 MPa | 65300 psi |
Compressive yield strength (at permanent set of 1%) | 880 MPa | 128000 psi |
Poisson’s ratio | 0.34 | 0.34 |
Charpy impact (@ 18.0 – 100°C/ -0.400 – 212°F, keyhole) | 3.00 J | 2.21 ft-lb |
Izod impact (@ 18.0 – 100°C/ -0.400 – 212°F) | 3.00 J | 2.21 ft-lb |
Fatigue strength (@# of cycles 1.00e+8, M30 temper) | 460 MPa | 66700 psi |
Machinability (UNS C36000 (free-cutting brass) = 100) | 20 | 20 |
Shear modulus | 42.3 GPa | 6140 ksi |
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