Inconel 625 Cladding Flange ASTM A694 F52 Carbon Steel Weld Neck Flange

B16.5 ASTM A694 / ASME SA694 F52 with Inconel 625 Cladding Flanges

Both Cladding and Weld Overlay provides protection against corrosion and wear for process and pipeline equipment. Weld overlay can be applied to extend the service life of new parts, or refurbish parts that have corroded orworn surfaces. 

Weld overlay, also known as weld cladding, is indeed a useful surfacing process where a relatively thick layer of weld metal is deposited onto the base metal surface. This process is used to enhance wear-resistance or corrosion resistance properties, depending on the specific requirements.

When the deposition imparts wear-resistance properties, it is termed as hardfacing, while if it provides corrosion resistance, it is called corrosion resistance alloy (CRA) weld overlay.

The advantages of weld overlay include the ability to impart properties to the substrate's surface that are not present in the base metal alone. Furthermore, it allows the conservation of expensive or hard-to-find materials by using a relatively thin layer of specialized material on a more affordable or widely available base material.

ASTM A694 Grade F52 Carbon Steel Flange Chemical Composition

ASTM A694 Grade F52 Carbon Steel Flange Mechanical Properties

ASTM A694 Grade F52 Carbon Steel Flange Physical Properties

Various Kinds of Flanges we can supply as below:

1. Slip-on Flanges.

Slip-on Flanges have a lower initial cost than welding neck flanges because they require less accuracy in cutting pipe to length, and they provide a greater ease of alignment in assembly. However, their calculated strength under internal pressure is approximately 2/3's the strength of welding neck flanges, and their life under fatigue is 1/3 shorter. Slip-on Flanges are limited to 1/2" to 2½" sizes in 1500lbs standard.

2. Threaded Flanges

Threaded Flanges are used for special applications. They can be assembled without welding and can be used in extremely high pressure services--at or near atmospheric pressure--where alloy steel is essential for strength. Threaded flanges are not suited for conditions involving temperature or bending stresses, or under cyclic conditions where leakage through the threads may occur.

3. Weld Neck Flanges

Weld Neck Flanges have a long tapered hub and gradual transition of thickness in the region of the butt weld joining them to the pipe. The tapered hub provides important reinforcement to the flange and resistance to dishing. This type of flange is preferred for severe service conditions resulting from high pressure, sub-zero or high temperatures.

4. Blind Flanges

Blind Flanges are used to blank off the ends of piping, valves and pressure vessel openings. Blind Flanges can handle high stress from internal pressure and bolt loading since the maximum stresses in the blind flange are bending stresses at the center.

5. Socket Weld Flanges

Socket Weld Flanges were developed for use on small size high pressure piping. With an internal weld, socket weld flanges are stronger and have greater fatigue strength than double welding a slip-on flange. Smooth bore conditions can be easily attained by grinding the internal weld. This flange is commonly used in chemical process piping.

6. Lap Joint Flanges

Lap Joint Flanges are used with lap joint stubs. Lap joint flanges are commonly used in carbon or low alloy steel piping systems that need to be frequently dismantled for inspection and cleaning. They should not be used at any points where severe bending stresses occur.

Applications

Cladding flanges are commonly used in various industrial applications where corrosion resistance, wear resistance, or other specialized properties are required. Some applications of cladding flanges include:

1. Oil and Gas Industry: Cladding flanges are used in oil and gas pipelines, offshore platforms, and refineries where they provide corrosion resistance against harsh environments and corrosive substances.

2. Chemical Industry: In chemical processing plants, cladding flanges are utilized to resist corrosion from acidic or caustic chemicals, ensuring the longevity and ety of the equipment.

3. Power Generation: Cladding flanges find applications in power plants, especially in areas where high temperatures, pressure, or abrasive conditions exist. The cladding helps in enhancing the longevity of critical components.

4. Mining and Ore Processing: In mining operations where equipment is exposed to abrasive materials, cladding flanges help to increase wear resistance and protect against abrasion.

5. Water Treatment: Cladding flanges are used in water treatment facilities to prevent corrosion caused by chemicals or saltwater exposure, thus extending the service life of the equipment.

6. Pulp and Paper Industry: Cladding flanges are employed in pulp and paper mills to eguard against corrosion from acidic and alkaline solutions used in the production process.

7. Aerospace and Defense: Aerospace and defense industries use cladding flanges for components that require high strength, wear resistance, or corrosion protection, ensuring optimal performance in challenging conditions.

8. Food and Beverage Industry: In food processing plants, cladding flanges are used to maintain hygiene standards and prevent corrosion from food-based solutions or cleaning agents.