A105 Weld Neck Flange
The A105 Weld Neck Flange features high strength, excellent sealing performance, and high-temperature resistance, making it suitable for high-pressure and high-temperature environments.
High Quality A105 Weld Neck Flange
SSM provides the A105 Weld Neck Flange, a forged steel flange used for connecting high-pressure and high-temperature pipelines. It possesses high strength, good sealing performance, and high-temperature resistance, finding widespread application in the oil, natural gas, chemical, power, and shipbuilding industries.
- Size: 1/2″ -48″
- Pressure rating: 150#, 300#, 600#, 900#, 1500#, 2500#
- Flange face: Typically flat face (FF), raised face (RF), or ring joint face (RTJ).
- Standard: ASTM A105, ASME B16.5, ASTM B16.47 A & B
ASTM A105 Weld Neck Flange Element Composition
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Sulfur (S) | Phosphorus (P) | Copper (Cu) | Nickel (Ni) | Molybdenum (Mo) | Vanadium (V) | Chromium (Cr) |
| Content Range (%) | ≤ 0.35 | ≤ 0.35 | 0.60 – 1.05 | ≤ 0.050 | ≤ 0.040 | ≤ 0.4 | ≤ 0.4 | ≤ 0.12 | ≤ 0.08 | ≤ 0.3 |
Features of A105 Weld Neck Flange
High strength: suitable for high-pressure environments.
Good sealing performance: welded connections ensure sealing.
High-temperature resistance: suitable for high-temperature environments.
Easy to install: long neck design facilitates butt welding.
Application of A105 Weld Neck Flange
Oil and gas: used for high-pressure pipelines.
Chemical industry: used for pipelines carrying corrosive media.
Electric power: used for high-temperature and high-pressure steam pipelines.
Shipbuilding: used for ship pipeline systems.
One-Stop A105 Weld Neck Flange Provider for All Your Needs
SSM has significant product advantages in manufacturing A105 Weld Neck Flange. Whether it’s quality or price, we will meet your needs.
More Information about A105 Weld Neck Flange
What is an A105 Weld Neck Flange?
The A105 Weld Neck Flange is a forged steel flange used for pipe connections, made to meet the ASTM A105 standard. It is designed for use in high-temperature and high-pressure environments. Characterized by its long neck structure, it facilitates butt welding with pipes.
What are the structural features of a Weld Neck Flange?
Long neck design: The neck extends into the pipeline to facilitate butt welding.
Flange face: Common types include flat face (FF), raised face (RF), and ring joint face (RTJ).
Bolt holes: Used for connecting with other flanges or equipment.
What are the installation considerations for A105 weld neck flanges?
When installing an A105 weld neck flange, attention should be paid to preparation work, welding preparation, welding process, post-weld treatment, bolt tightening, and post-installation inspections. Ensure that the flange’s size, pressure rating, and material meet the design requirements. Utilize suitable welding materials and techniques, perform appropriate preheating and post-weld heat treatment, evenly tighten bolts, and conduct leakage tests.
What is the manufacturing process of an A105 Weld Neck Flange?
Typically, our production process includes:
- Forging: Manufactured through forging processes to ensure material density and strength.
- Heat treatment: Typically undergoes normalizing treatment to improve mechanical properties.
- Machining: Processed into the final dimensions through turning, drilling, and other processes.
What are the differences between an A105 Weld Neck Flange and other types of flanges?
Weld Neck Flange VS Slip-On Flange: The Weld Neck Flange is connected by welding, offering higher strength and suitability for high-pressure environments; the Slip-On Flange is installed by sliding and is suitable for low-pressure environments.
Weld Neck Flange VS Blind Flange: A Blind Flange is used to seal the end of a pipeline, while a Weld Neck Flange is used to connect pipes.
How is the corrosion resistance of an A105 Weld Neck Flange?
A105 is a carbon steel material with average corrosion resistance, making it suitable for non-corrosive media. In corrosive environments, it is advisable to use stainless steel or other corrosion-resistant materials.
What are the price factors for an A105 Weld Neck Flange?
- Size: Larger sizes command higher prices.
- Pressure rating: Higher pressure ratings result in higher prices.
- Quantity: Bulk purchases usually come with discounts.
- Market supply and demand: Fluctuations in raw material prices can affect the final price.
What are the alternative materials for an A105 Weld Neck Flange?
The price advantage of the A105 Flange over other materials is very obvious.
When higher corrosion resistance or special performance is required, the following alternative materials can be chosen:
- Stainless steel: such as ASTM A182 F304/F316.
- Alloy steel: such as ASTM A182 F11/F22.
- Duplex steel: such as ASTM A182 F51/F53.
For more material and size options, please contact SSM.
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