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Zhejiang Yuhongwell Steel Co.,Ltd

Zhejiang Zhongwu Tube Manufacturing Co.,Ltd



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F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface

F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface

    • F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface
    • F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface
  • F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface

    Product Details:

    Place of Origin: CHINA
    Brand Name: YUHONG
    Certification: API , ABS, DNV, GL , LR, NK....
    Model Number: F321

    Payment & Shipping Terms:

    Minimum Order Quantity: 1PC
    Price: Discussion
    Packaging Details: according to client requirements/ wooden case packing....
    Delivery Time: 1 WEEK
    Payment Terms: T/T, L/C at sight
    Supply Ability: according to client reqirments
    Contact Now
    Detailed Product Description
    Material Grade: F321 Standard: ASME SA182
    Certificate: API , ABS, DNV, GL , LR, NK.... Third Party Inspection: BV,SGS,ASP
    Type: PLFF Surface: SMOOTH FINISH

    Steel Flanges, ASME SA182 F321, OD:615MM*ID:492MM*59MM, PLFF, PN10


    YUHONG Stainless distributes Stainless Steel Flanges including: Slip-Ons, Socket Weld, Blinds, Lap Joints, Threaded and Weld Necks.

    Steel Flanges

    Pipe Flanges are widely used as a popular category of pipe fittings. A flange is used to mechanically connect two pipes together. It can also be used to mechanically connect a pipe to a tee, valve, choke or any other piece of equipment. Flanges are available in round, square, and rectangular shapes. In some cases, flanges are usually in the shape of a ring or a plate to form a rim at the end of a pipe when fastened to the pipe. This is an example of closet flange. A flange can also be a plate for covering or closing the end of a pipe. This is a blind flange. Thus, flanges are considered to be projecting or internal components which are used to support mechanical parts. They are like rims which are used to strengthen the mechanical part or they are a means of attaching that part to another part or surface.
    Steel Flanges,BS / ISO1/2" NB TO 24" NB Long Weld Neck Flanges,SO RF Flanges,WN RF Flanges ,SW RF Flanges , BL RF


    We exports various forged and plate flanges in large diameter with different grades. We produce using high quality of steel to make them last for many years.

    We offer high quality and superior performance steel flanges for various requirements of our clients. Designed as per market standards and parameters. Our flanges are high in durability and can withstand extreme conditions. Our comprehensive range includes weld neck flanges, socket weld flanges, steel weld flanges, steel weld neck flanges and many more.

    Flanges Types:

    • Slip On - SORF Flanges
    • Weld Neck - WNRF Flanges
    • Socket Weld - SWRF Flanges
    • Blind - BLRF Flanges
    • Lapped Joint Flanges
    • Screwed Flanges
    • Long Weld Neck Flanges
    • Reducing Flanges
    • Spectacle Flanges
    • Ring Joint Flanges



    Product Range:

    WNRF Flanges Size : 1/8" NB TO 48"NB.

    WNRF Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.



    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.


    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.


    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.


    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.


    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.


    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.


    Grade   C Mn Si P S Cr Mo Ni N
    316L Min - - - - - 16.0 2.00 10.0 -
    Max 0.03 2.0 0.75 0.045 0.03 18.0 3.00 14.0 0.10
    304 Min - - - - - 18.0 - 8.0 -
    Max 0.08 2.0 0.75 0.045 0.030 20.0 - 10.5 0.10
    304L Min - - - - - 18.0 - 8.0 -
    Max 0.030 2.0 0.75 0.045 0.030 20.0 - 12.0 0.10



    F321 Material Grade Steel Flanges ASME SA182 PLFF Type Smooth Finish Surface

    Contact Details
    Yuhong Group Co.,Ltd

    Contact Person: Maggie

    Tel: +8613296819890

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