+91-9619103479
or
vishal@solitaire-overseas.com
Alloy steel anchor flanges are heavy forged rings with a weld neck hub on each side. They are welded into the pipeline and set in a concrete anchor block, so the pipe cannot move at that point. They have no bolt holes. With installation in a concrete support structure, the flange assists in transmitting axial load, pressure force, and thermal expansion load on the foundation. These forged pipe fittings are available in various grades of alloy steel, such as ASTM A182 F5, F9, F11, F22, and F91. Solitaire Overseas forges anchor flanges to your drawing and ships them with dimensional inspection reports, EN 10204 3.1 certificates and heat number traceability.
| Parameter | Detail |
|---|---|
|
Product |
Alloy steel anchor flange (one-piece forged ring with double weld neck hubs) |
|
Material Grades |
ASTM A182 F5, F9, F11 Cl.2/Cl.3, F22 Cl.3, F91 (F1 and F12 available on request) |
|
Design Basis |
Custom engineered to purchaser design calculations, drawings, and pipeline code (e.g., ASME B31.1, B31.3, B31.4, B31.8) |
|
Size & Pressure Class |
Manufactured to drawing. (Anchor flanges are engineered items, not standard ASME B16.5 catalog dimensions) |
|
Weld Ends |
Beveled to ASME B16.25 and custom matched to line pipe wall thickness / schedule |
|
Heat Treatment |
Annealed, or normalised and tempered, per the ASTM A182 grade. Confirm whether quenched and tempered is allowed for each grade before stating it |
|
Testing |
Chemical composition, mechanical tensile/yield/impact, hardness, PMI, Ultrasonic (UT), Magnetic Particle (MPI) |
|
Documentation |
EN 10204 3.1 Mill Test Certificate (MTC), EN 10204 3.2 TPI available |
|
Marking |
Stamped on ring rim: Grade, Heat Number, Nominal Size, Wall Thickness, and Manufacturer Logo |
| Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) max | Sulfur (S) max | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) | Other Elements |
|---|---|---|---|---|---|---|---|---|
|
A182 F5 |
0.15 max |
0.30 to 0.60 |
0.030 |
0.030 |
0.50 max |
4.00 to 6.00 |
0.44 to 0.65 |
Not specified |
|
A182 F9 |
0.15 max |
0.30 to 0.60 |
0.030 |
0.030 |
0.50 to 1.00 |
8.00 to 10.00 |
0.90 to 1.10 |
Not specified |
|
A182 F11 Cl.2 |
0.10 to 0.20 |
0.30 to 0.80 |
0.040 |
0.040 |
0.50 to 1.00 |
1.00 to 1.50 |
0.44 to 0.65 |
Not specified |
|
A182 F22 Cl.3 |
0.05 to 0.15 |
0.30 to 0.60 |
0.040 |
0.040 |
0.50 max |
2.00 to 2.50 |
0.87 to 1.13 |
Not specified |
|
A182 F91 |
0.08 to 0.12 |
0.30 to 0.60 |
0.020 |
0.010 |
0.20 to 0.50 |
8.00 to 9.50 |
0.85 to 1.05 |
V: 0.18 to 0.25, Nb: 0.06 to 0.10, N: 0.03 to 0.07 |
| Grade | Tensile Strength min, MPa (ksi) | Yield Strength min, MPa (ksi) | Elongation min, % | Reduction of Area min, % | Hardness, HBW |
|---|---|---|---|---|---|
|
A182 F5 |
485 (70) |
275 (40) |
20 |
35 |
217 max |
|
A182 F9 |
585 (85) |
380 (55) |
20 |
40 |
179 to 217 |
|
A182 F11 Cl.2 |
485 (70) |
275 (40) |
20 |
30 |
143 to 207 |
|
A182 F11 Cl.3 |
515 (75) |
310 (45) |
20 |
30 |
156 to 207 |
|
A182 F22 Cl.3 |
515 (75) |
310 (45) |
20 |
30 |
156 to 207 |
|
A182 F91 |
585 (85) |
415 (60) |
20 |
40 |
190 to 248 |
Alloy steel anchor flanges are forged piping components designed to secure pipelines at fixed points and resist movement under operating loads.
Their main purpose is to restrain pipeline movement and transfer axial thrust and thermal loads to a supporting foundation.
It is welded into the pipeline and embedded in a concrete anchor block to prevent axial movement and provide structural support.
An anchor flange has a central collar set in concrete to carry load, with no bolt holes. A weld neck flange has one hub and bolts to a mating flange.
No. It has no bolt holes. It is welded to the pipe on both sides and its ring bears on a concrete anchor block.
Choose alloy when the pipe is alloy and the line runs hot, so the flange matches the pipe grade and thermal behaviour. Otherwise carbon steel is usually enough.
A puddle flange is a plate ring that seals a wall or slab penetration against water. An anchor flange holds the pipe against load.
Send the design code, grade, pipe size and schedule, design pressure and temperature, axial load, concrete bearing stress and a drawing.