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Carbon Steel Flanges
In choosing flanges, forged carbon steel flange is by far the most popular option. There are different types of Carbon Steel Flanges like weld neck flange, lap joint flange, blind flange, and many others. These products are widely used in various industries and widely appreciated by clients for owning unmatchable characteristics.
1. Carbon Steel Pipe Flange Standards
ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
PRESSURE CLASS | PN 2.5 TO PN 40 |
BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
TABLE | D, E, F, H |
DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
PRESSURE CLASS | PN 6 TO PN 100 |
2. Carbon Steel Flange Types
Carbon Steel Flanges are corrosion resistant and have a wide variety of uses. We carry a variety of flanges types and of course, we can custom build Carbon Steel Flanges to your specifications. Here are some commonly used carbon steel flange types according to ASME B16.5.
3. Carbon Steel Flange Dimensions
Dimensions of Class 150 Flanges as per ANSI B16.5. Dimensions of Class 150 Flanges as per ANSI B16.5 for reference.
4. Carbon Steel Flange Material
The most common material used today is A105 forged carbon steel, with sizes ranging from 1/2”–24” in ASME B16.5, 26”–60” in ASME B16.47. The wide temperature and pressure range makes carbon steel flanges an attractive solution for industrial applications, and have proven to be one of the least expensive pricing options.
ASTM A105 Carbon Steel Pipe Flanges
Carbon Steel A105 Flanges are operated under temperatures 500 Degree to 550 Degree. It is used in Hydro-carbon, Marine engineering processing. Heat exchangers, pumps manufacturing, petrochemical plants, valves manufacturing, oil & gas equipment, nuclear power projects, and so on.
ASTM A350 LF2 - Low Temperature Carbon Steel Pipe Flange
If your application calls for low temperature service, consider A350 LF2 forged carbon flanges (with Charpy V-Notch Impact Tests at -50°F) or the superior LF3 (CVNs at -150°F). These are very similar to A105 in most ways, but are rated for colder ambient utilization.
ASTM A694 - A Rigorous Carbon Steel Pipe Flange Material
carbon steel A694 flanges material, It is stringent to high-pressure fluid transmission of oil and gas piping. And because of this property of the steel grade, manufacturers have to develop even stronger steel to withstand both cryogenic and high temperatures.
Chemical Composition of ASTM A694
| Grade | C | Mn | P | S | Si |
| ASTM A694 F42 | 0.26-0.265 | 1.60-1.64 | 0.025-0.030 | 0.025-0.030 | 0.15-0.35 |
| ASTM A694 F52 | 0.26-0.265 | 1.60-1.64 | 0.025-0.030 | 0.025-0.030 | 0.15-0.35 |
| ASTM A694 F60 | 0.26-0.265 | 1.60-1.64 | 0.025-0.030 | 0.025-0.030 | 0.15-0.35 |
| ASTM A694 F65 | 0.26-0.265 | 1.60-1.64 | 0.025-0.030 | 0.025-0.030 | 0.15-0.35 |
Tensile Requirements of ASTM A694
| Grade | Yield Strength (0.2 % Offset), min, ksi [MPa] | Tensile Strength min, ksi [MPa] | Elongation in 2 in. or 50 mm, min % |
| F42 | 42 [290] | 60 [415] | 20 |
| F46 | 46 [315] | 60 [415] | 20 |
| F48 | 48 [330] | 62 [425] | 20 |
| F50 | 50 [345] | 64 [440] | 20 |
| F52 | 52 [360] | 66 [455] | 20 |
| F56 | 56 [385] | 68 [470] | 20 |
| F60 | 60 [415] | 75 [515] | 20 |
| F65 | 65 [450] | 77 [530] | 20 |
| F70 | 70 [485] | 82 [565] | 18 |
5. Weight of Carbon Steel Flanges
Class 150 carbon steel flange weight chart
6. Carbon Steel Flange Price List
Carbon Steel Flanges Price List is available from us for any type of flanges. The ASME B 16.5 Carbon Steel Flanges Price List lists the flanges of ½ NPS through 24 NPS flanges. These flanges are used in oil and gas, petroleum, water supply, and other lines of pipes.
Carbon Steel Weld Neck Flange Price Per Piece in China | Carbon Steel Weld Neck Flange Price in USD |
FLANGES- WELD NECK, CARBON STEEL PER ASTM A350 GRADE LF2 | USD $ 456.62 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 2.30 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 2.67 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 1.90 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 2.71 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 5.13 |
WELD NECK CARBON STEEL FLANGE LF2 B1 | USD $ 2.21 |
FLANGES CARBON STEEL GR :A105 FLG WN 300#RF STL STD BORE WELD NECK RATING -ASME CLASS 300 FAACING -RAISED FACE | USD $ 2.32 |
WELD NECK CARBON STEEL FLANGE LF2 | USD $ 6.49 |
At Estan pipe fittings, we offer all types of flanges for various systems. Manufacturer of standard and custom flanges made from carbon steel. Types include socket weld flange, blind flange, weld neck flange, NPTF, BSPP, and BSPT threaded flanges, etc. Most items are available in stock.
If you’re in need of carbon steel flanges for your next project, give us a call, we will be your trusted flange manufacturer and supplier.
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