Carbon Steel Flange
Carbon steel flange is a flange made of carbon steel material, its main components are iron and carbon. They are an essential component in piping systems, helping to connect and disconnect pipes, valves, and other equipment. Carbon steel flanges have excellent mechanical properties. They can be made of different carbon steel components.
- Low carbon steel: C content at 0.005% to 0.3%.
- Medium carbon steel: 0.3 to 0.8% of Carbon.
- High carbon steel: 0.8-2.0% of carbon.
- Ultra high carbon steel: 1.25% to 2.0% of C.
Gnee offers carbon steel flanges in a variety of sizes, dimensions, and pressure ratings, allowing them to meet different piping system requirements. Our sales and technical support staff are trained to provide you with everything you need. Contact us now.
Types of Carbon Steel Flanges
Slip-on Flanges
Slip-on flanges are flat or raised face flanges with a 1/16″ lip. These flanges are good for pipe systems with low pressures and moderate temperatures. They can be easily welded into place and offer good corrosion resistance. Slip On (SO) is the most basic and easiest flange type.
Socket Weld Flanges
A carbon steel socket weld flange is a type of flange that is specifically designed for socket welding connection. It is commonly used in small-diameter piping systems where high-pressure and high-temperature applications are involved. Carbon steel socket weld flanges have a socket-shaped bore and a counter-bore that allows for the insertion of the pipe end. They have a smaller diameter and thickness compared to other types of flanges, making them suitable for compact piping systems.
Threaded Flanges
These flanges have threads on the inside of the flange, allowing them to be screwed onto the pipe. They are typically used in low-pressure applications and are easy to install and remove. A well-chosen flange is an invaluable asset if handled with care.
Lap Joint Flanges
The lap joint flange is a two-component design commonly used for larger-diameter piping configurations. It can be made from carbon steel. It is often used to help simplify the assembly and dismantling of large-diameter and stiff piping systems.
Blind Flange
Weld Neck Flange
Standards And Specifications Of Carbon Steel Flanges
| Specifications | ASTM A105 & ASME SA105, A105N |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2″ to 48″ |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| ASME/ANSI B 16.5 | Threaded Flange, Ring Type Joint Flange, Blind Flange, Welding Neck Flange, Slip on Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B], Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Slip on Flange, Welding Neck Flange, Threaded Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| 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 |
| 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 |
| BS 4504[PART 1] | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Blind Flange, Screwed Boss Flange, Lapped FlangeWelding Neck Flange, Socket Welding Flange, Slip-On Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Blind Flange, Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange |
| TABLE | D, E, F, H |
What Are The Features Of Flange Fittings?
The Excellent Features of Carbon Steel Flanges
Gnee is an exporter of carbon steel flanges with over 15 years of experience. We have our own factory and you can buy from us at an absolute price advantage. We use high-quality raw materials and product quality is guaranteed. Full range of specifications here, wide range of sizes here.
Strength and Durability
Carbon steel flanges offer exceptional strength and durability. They can withstand heavy loads and provide structural stability, ensuring long-term performance and reliability.
Corrosion Resistance
Carbon steel flanges are highly resistant to corrosion, especially when compared to materials like cast iron. They can withstand exposure to aggressive fluids, chemicals, and humid environments.
Compatibility
Carbon steel flanges can be easily matched with pipes and fittings of the same material. They offer good compatibility with diverse systems in various industries.
Cost-effectiveness
Carbon steel flanges are relatively more cost-effective compared to materials like stainless steel or exotic alloys. This affordability factor is particularly important for industries operating on tight budgets.
Considerations On Choosing Flange
Material Grade & Composition
When selecting carbon steel flanges, knowing the material grade and composition is crucial. Carbon steel flanges generally fall into two broad categories: low-carbon steel and high-carbon steel. The choice of carbon steel grade depends on the project’s specific requirements.
Pressure Ratings
Choosing flanges with pressure ratings suitable for your project system is essential. Pressure ratings are usually available in the flange’s description or specification, expressed in either pounds per square inch (PSI) or kilopascal (KPA).
Type of Flange
Each flange type has its specific advantages and scope of application. Common flange types include welding neck flange, blind flange, sliding flange, etc. Select the appropriate flange type based on application needs.
Size and Dimensions
Carbon steel flanges come in various sizes and dimensions, measured in inches or millimeters. Choosing flanges that align with your pipeline’s size and dimensions is crucial. The most common flange size is two to forty-eight inches.
Applications
Frequently Asked Questions
Gnee offers a large inventory of high-quality flange fittings in a variety of specifications. Get a free quote.
Why Choose Gnee Carbon Steel Flange Fittings?
In addition, our high-quality flange fitting has been successfully exported to more than 60 countries such as Vietnam, Malaysia, Indonesia, Pakistan, UAE, and South Korea, etc. Many regular customers visit our company and factory and make multiple orders.
What Services Does Gnee Provide?
Gnee can provide the following measurement services:
1. Dimensional measurement: Measure the dimensional parameters such as length, width, and thickness by measuring instruments to ensure the product is qualified and meets the design requirements.
2. Surface measurement: Measure parameters such as flatness, unevenness, and surface roughness of the product surface to help ensure that the quality and surface state meet the requirements.
3. Thickness measurement: Use a thickness measuring instrument to accurately measure the thickness to ensure that it meets the design requirements.
4. Material measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the product to ensure that the quality and performance meet the requirements.
5. Bending and Deformation Measurements: The degree of bending and deformation is measured and monitored by using tools such as bending measuring instruments and displacement sensors to ensure that it is within the allowable range.
Gnee can customize the size and shape for your project according to specific project needs. The custom design of the product is carried out by a professional engineer and design team. Based on the requirements and constraints of the project, they will use calculation and simulation tools, combined with experience and technical knowledge, to optimize the steel pipe design to meet the specific needs of your engineering.
● According to the strength requirements of structural design, adjust the thickness, width, and length.
● The shape can be designed according to the characteristics of the project.
● If you consider the convenience of installation and maintenance, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.
Purchasing Gnee’s steel product can provide the following deep processing services. We can customize according to the specific needs of customers to meet the requirements.
Cutting service: Product can be custom cut to obtain the desired shape and size according to the needs of customers. For example, flame cutting, plasma cutting, laser cutting, etc., can cut steel pipes into required blocks, special-shaped parts.
Bending and forming: Products are bent and formed by stress application and appropriate processes to obtain the desired shape.
Welding service: Product can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Turning and machining of holes: Turning and machining of holes in product by using machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface treatment: In order to improve the corrosion resistance and aesthetics of the steel product, surface treatment can be carried out. This includes methods such as spraying, hot-dip galvanizing, electroplating, etc. to add a protective layer and provide corrosion resistance.
Gnee can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that products comply with relevant standards and regulations.
Material chemical composition analysis: Through chemical composition analysis, determine whether the composition meets the standard requirements.
Mechanical performance test: Mechanical performance test includes tensile test, impact test, bending test, etc., which are used to determine whether the mechanical properties such as strength, toughness and ductility of products meet the specified requirements.
Metallographic testing: Through metallographic testing, check the structure, grain size, non-metallic inclusions, etc. of pipes to evaluate their quality and performance.
Corrosion performance test: Through the corrosion performance test, evaluate the corrosion resistance of products, including salt spray corrosion resistance, chemical corrosion resistance, etc.
Hardness test: Hardness test is used to measure the hardness of the products, and its strength and wear resistance can be evaluated according to the hardness value.
Ultrasonic flaw detection: Ultrasonic flaw detection is used to detect internal defects of products, such as cracks, pores, inclusions, etc.
