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ASTM A694 F48 Flanges Manufacturer and Supplier in India
ASTM A694 F48 Flanges are forged steel flanges produced for transmission pipes that are expected to have reliable mechanical properties under high operating pressure. These flanges are manufactured according to the ASTM A694/A694M specification and can be used in pipeline, petrochemical plant and oil and gas transport applications. The minimum yield strength of Grade F48 is 48ksi (330 MPa); the minimum tensile strength is 62ksi (425 MPa) with a minimum elongation of 20%. The mechanical properties of this grade enable the use of the material in particular pipeline applications where strength and ductility are crucial. Various configurations, dimensions and pressure ratings are available depending on project requirements and applicable dimensional standards. Solitaire overseas is a manufacturer and supplier of ASTM A694 F48 Flanges in India for industrial buyers and pipeline projects abroad.
Technical Data
Specifications of ASTM A694 F48 Flanges
| Property / Parameter | Specification / Standard |
|---|---|
| Standard Specification | ASTM A694 / ASME SA694 |
| Grade Designation | Grade F48 |
| Dimensional Standards | ASME B16.5, ASME B16.47 Series A & B, MSS SP-44 |
| Size Range | 1/2" to 24" (ASME B16.5), 26" to 48" and larger (ASME B16.47) |
| Equivalent Grades | Close in strength to ASTM A105 (standard) and below A694 F52 |
| Pressure Classes | Class 150, 300, 400, 600, 900, 1500, 2500 |
| Heat Treatment | Normalizing, Quenching and Tempering |
| Available Sizes | 1/2" to 48" NB per ASME B16.5 / B16.47 |
| Facings | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Temperature Range | -29°C to +427°C (-20°F to +800°F) typical |
Chemical Compositions of ASTM A694 F48 Flanges
| Element | Composition Limit (%) |
|---|---|
| Carbon (C) | ≤ 0.30 |
| Manganese (Mn) | ≤ 1.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | 0.15 – 0.35 |
ASTM A694 F48 Flanges Mechanical Properties
| Property | Minimum Requirement |
|---|---|
| Yield Strength (0.2% offset) | 330 MPa / 48 ksi |
| Tensile Strength | 425 MPa / 62 ksi |
| Elongation (in 2 inches / 50 mm) | 20% |
Physical Properties of ASTM A694 F48 Flanges
| Property | Typical Value |
|---|---|
| Density | 7.85 g/cm³ |
| Elastic Modulus | 190 – 210 GPa |
| Thermal Conductivity | ~45 W/m·K |
| Melting Range | 1425 – 1540 °C |
Pressure Rating Chart of ASTM A694 F48 Flanges
| Temperature (°F) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
|---|---|---|---|---|---|---|---|
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
Different Types of ASTM A694 F48 Flanges
ASTM A694 F48 Weld Neck Flanges
ASTM A694 F48 Blind Flanges
ASTM A694 F48 Slip-On Flanges
ASTM A694 F48 Socket Weld Flanges
ASTM A694 F48 Threaded Flanges
Applications and Industrial Uses of ASTM A694 F48 Flanges
- Cross-country crude oil and natural gas transmission pipelines
- Offshore and subsea piping systems
- LNG terminals and gas processing facilities
- Petrochemical and refinery processing units
- High-pressure headers and manifold systems
Frequently Asked Questions
A694 F48 has a minimum yield strength of 330 MPa (48 ksi), minimum tensile strength of 425 MPa (62 ksi), and minimum elongation of 20% in 2 inches.
ASTM A694 covers material requirements only. Flange dimensions, facing, and pressure class follow ASME B16.5 up to NPS 24, or ASME B16.47 for larger sizes.
F48 carries a 330 MPa minimum yield strength versus 385 MPa for F56, so F48 suits moderately high-pressure service while F56 suits higher-pressure transmission piping.
Weld neck, slip-on, blind, lap joint, socket weld, and threaded flanges are manufactured in A694 F48 to the required pressure class and facing.
Cross-country crude oil and gas pipelines, offshore and subsea systems, LNG terminals, and petrochemical and refinery projects requiring elevated yield strength.