- 0091-022-66362797 / +91-9821025398
- ngchouhan@gmail.com / ganpatmetal03@gmail.com
Ganpat Metal supplies carbon steel flanges in India for industrial piping, process plants, oil & gas, petrochemical, power generation and engineering projects. Our range covers different flange types, sizes, pressure classes, face configurations and applicable standards.
Carbon steel flanges can be specified according to material grade, flange type, NPS/DN size, pressure class, facing, drilling and dimensional standard. For grade-specific requirements, we supply options including ASTM A105 and ASTM A350 LF2 carbon steel flanges.
Carbon steel flanges are selected according to the piping standard, pressure class, flange configuration and material specification required for the project.
| Specification | Carbon Steel Flange Range / Reference |
|---|---|
| Material | Carbon Steel |
| Size | 1/2" (15 NB) to 48" (1200 NB) |
| Dimensions | ANSI/ASME B16.5, ASME B16.47 Series A & B, B16.48, BS 4504, BS 10, EN 1092, DIN and others |
| Standards | ANSI, ASME, BS, DIN, EN and applicable specifications |
| Pressure Classes | 150#, 300#, 600#, 900#, 1500#, 2500# |
| PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 and others as applicable |
| Face Types | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Flange Types | Welding Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint and other configurations |
| Dimensional Selection | NPS/DN, flange OD, thickness, bolt circle, bolt-hole diameter and number of bolts |
Carbon steel flanges are manufactured or supplied according to the dimensional, material and piping standards specified for the application.
| Standard | Application / Reference |
|---|---|
| ASME B16.5 | Flanges and flanged fittings for NPS 1/2 through NPS 24 |
| ASME B16.47 | Large diameter steel flanges, NPS 26 through NPS 60 |
| ASME B16.48 | Line blanks |
| ASME B16.1 | Cast iron pipe flanges and flanged fittings |
| ASME B16.11 | Forged fittings, socket-welding and threaded |
| ASME B16.25 | Buttwelding ends |
| ASME B16.36 | Orifice flanges |
| ASME B1.20.1 | Pipe threads |
| ASME B31.1 | Power piping |
| ASME B31.3 | Process piping |
| ASME B46.1 | Surface texture and roughness |
| BS 4504 | Circular flanges for pipes, valves and fittings |
| BS 10 | Flanges and bolting for pipes, valves and fittings |
| EN 1092 | Flanges and their jointing specifications |
| DIN | Applicable DIN flange dimensional specifications |
The applicable standard depends on the flange type, nominal size, pressure class, connection and project specification.
Carbon steel flanges are available in pressure classes including 150#, 300#, 600#, 900#, 1500# and 2500#, along with PN-rated configurations such as PN6, PN10, PN16, PN25, PN40 and PN64.
| Pressure Class | Typical Designation |
|---|---|
| Class 150 | 150# |
| Class 300 | 300# |
| Class 600 | 600# |
| Class 900 | 900# |
| Class 1500 | 1500# |
| Class 2500 | 2500# |
| PN Series | PN6, PN10, PN16, PN25, PN40, PN64 |
Ganpat Metal's referenced carbon steel flange range covers 1/2" (15 NB) to 48" (1200 NB), subject to the applicable standard and flange configuration. Flange dimensions are determined by the selected standard, nominal size, pressure class and type.
| Dimensional Parameter | Description |
|---|---|
| Nominal Pipe Size | NPS / DN of the connected piping |
| Outside Diameter | Overall flange outside diameter |
| Flange Thickness | Required thickness of the flange |
| Hub Diameter | Diameter of the flange hub where applicable |
| Hub Length | Axial hub dimension |
| Raised Face Diameter | Diameter of the raised sealing face |
| Bolt Circle Diameter | Diameter across the bolt-hole pattern |
| Bolt Hole Diameter | Diameter of individual bolt holes |
| Number of Bolts | Number specified by the applicable standard |
| Bolt Size | Applicable bolt diameter |
| Overall Weight | Approximate flange weight according to configuration |
The following values are a reference dimensional and weight table for the supplied flange configuration. Actual dimensions and weights vary with flange type, pressure class and applicable standard.
| Nominal Size | OD (mm) | Min. Thickness (mm) | Hub Dia. (mm) | Raised Face Dia. (mm) | Bolt Circle (mm) | Bolt Holes (mm) | Bolts | Bolt Size | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2" DN15 | 89.00 | 11.20 | 30.20 | 35.10 | 60.50 | 15.80 | 4 | 1/2" | 0.4 |
| 3/4" DN20 | 98.50 | 12.70 | 38.10 | 42.90 | 69.90 | 15.80 | 4 | 1/2" | 0.7 |
| 1" DN25 | 108.00 | 14.20 | 49.30 | 50.80 | 79.30 | 15.80 | 4 | 1/2" | 0.8 |
| 1-1/4" DN32 | 117.50 | 15.70 | 58.70 | 63.50 | 88.90 | 15.80 | 4 | 1/2" | 1.2 |
| 1-1/2" DN40 | 127.00 | 17.50 | 65.00 | 73.20 | 98.60 | 15.80 | 4 | 1/2" | 1.5 |
| 2" DN50 | 152.50 | 19.10 | 77.70 | 91.90 | 120.70 | 19.10 | 4 | 5/8" | 2.3 |
| 2-1/2" DN65 | 178.00 | 22.40 | 90.40 | 104.60 | 139.70 | 19.10 | 4 | 5/8" | 3.7 |
| 3" DN80 | 190.50 | 23.90 | 108.00 | 127.00 | 152.40 | 19.10 | 4 | 5/8" | 4.1 |
| 3-1/2" DN90 | 216.00 | 23.90 | 122.20 | 139.70 | 177.80 | 19.10 | 8 | 5/8" | 5.1 |
| 4" DN100 | 228.50 | 23.90 | 134.90 | 157.20 | 190.50 | 19.10 | 8 | 5/8" | 5.9 |
| 5" DN125 | 254.00 | 23.90 | 163.60 | 185.70 | 215.90 | 22.40 | 8 | 3/4" | 7.0 |
| 6" DN150 | 279.50 | 25.40 | 192.00 | 215.90 | 241.30 | 22.40 | 8 | 3/4" | 8.4 |
| 8" DN200 | 343.00 | 28.40 | 246.10 | 269.70 | 298.50 | 22.40 | 8 | 3/4" | 13.0 |
| 10" DN250 | 406.50 | 30.20 | 304.80 | 323.90 | 362.00 | 25.40 | 12 | 7/8" | 18.0 |
| 12" DN300 | 482.50 | 31.80 | 365.30 | 381.00 | 431.80 | 25.40 | 12 | 7/8" | 29.0 |
| 14" DN350 | 533.50 | 35.10 | 400.10 | 412.80 | 476.30 | 28.50 | 12 | 1" | 39.0 |
| 16" DN400 | 597.00 | 36.60 | 457.20 | 469.90 | 539.80 | 28.50 | 16 | 1" | 47.0 |
| 18" DN450 | 635.00 | 39.60 | 505.00 | 533.40 | 577.90 | 31.80 | 16 | 1-1/8" | 57.0 |
| 20" DN500 | 698.50 | 42.90 | 558.80 | 584.20 | 635.00 | 31.80 | 20 | 1-1/8" | 76.0 |
| 24" DN600 | 813.00 | 47.80 | 663.40 | 692.20 | 749.30 | 35.10 | 20 | 1-1/4" | 97.0 |
For larger sizes, special dimensions or project-specific configurations, the required standard, class and dimensional drawing should be confirmed before ordering.
For quotation accuracy, provide the grade, size, pressure class, flange type, face, standard and quantity. These details determine the applicable dimensional and manufacturing requirements.
Select Carbon Steel Flange parameters and click the "Calculate Weight" button to reveal exact weight.
Carbon steel flanges are available in configurations suited to different piping connections and installation requirements:
The required flange type depends on the pipe connection method, nominal size, pressure class, piping design and applicable standard.
Carbon steel flange material is selected according to the mechanical, temperature and service requirements of the piping system.
ASTM A105 Carbon Steel Flanges are commonly specified for forged carbon steel flange requirements. Ganpat Metal can supply A105 Carbon Steel Flanges according to the applicable dimensional, pressure and material specifications.
For low-temperature service requirements, ASTM A350 LF2 Flanges provide a specific material option used where the project specification calls for LF2-grade carbon steel.
The appropriate grade should be confirmed against the project specification, operating temperature, pressure, piping code and applicable material standard.
Carbon steel flanges are manufactured or supplied according to the dimensional, material and piping standards specified for the application.
The applicable standard depends on the flange type, nominal size, pressure class, connection and project specification.
Carbon steel flanges are available in pressure classes including 150#, 300#, 600#, 900#, 1500# and 2500#, along with PN-rated configurations such as PN6, PN10, PN16, PN25, PN40 and PN64.
Pressure-temperature capability is not determined by class alone. The applicable material specification, flange standard, temperature and design conditions must be considered when selecting the flange.
Pressure ratings should always be confirmed against the applicable material and dimensional standard before final selection.
The flange face determines how the flange interfaces with the gasket and mating flange.
Other facing configurations may be available depending on the required flange standard and application, including large/small tongue-and-groove and male/female configurations.
When requesting a quotation, specify the required face type along with flange type, size, class and material grade.
Ganpat Metal's referenced carbon steel flange range covers 1/2" (15 NB) to 48" (1200 NB), subject to the applicable standard and flange configuration.
Flange dimensions are determined by the selected standard, nominal size, pressure class and type.
Carbon steel flanges are used across piping systems where flanged connections are required for installation, maintenance, equipment connections or pipe isolation.
Common industries and applications include:
The flange type, material grade, pressure class and facing should be selected according to the operating conditions and applicable piping specification.
Inspection and documentation requirements depend on the purchase specification, material grade, applicable standard and project quality requirements.
Depending on the specified requirement, carbon steel flanges may be checked for:
Inspection requirements should be confirmed before order placement where third-party inspection or project-specific testing is required.
Available documentation can be specified according to the purchase order and applicable material standard.
Typical documentation may include:
Ganpat Metal supplies carbon steel flanges for industrial piping and engineering requirements across India. Flanges can be specified according to grade, type, size, pressure class, facing and applicable dimensional standard.
For procurement, provide the following details:
This information helps match the quotation with the required flange configuration and project specification.
India
Brazil
New Zealand
Australia
Bangladesh
Malaysia
UAE
Saudi Arabia
Oman
Egypt
Spain
Russia
Kazakhstan
For carbon steel flange procurement, the correct combination of material, dimensions, pressure class and flange configuration is essential.
Ganpat Metal can assist with enquiries covering:
Contact the sales team with your flange specification to check availability, pricing and supply options.
Send your carbon steel flange requirement with the following information:
