ASME B16.47 Series A Class 600 Flanges | Welding Neck

We are a manufacturer, supplier and exporter of ASME B16.47 Series A Class 600 Welding Neck Flanges. Designed for large diameter piping systems, ASME B16.47 Series A flanges are capable of withstanding Class 600 pressure ratings and are suitable for large diameter pipes from NPS 26 to NPS 60. The design of the Welding Neck flange provides superior strength and stability, enabling it to withstand heavier pipe loads, making it ideal for use in more demanding industrial applications.

YANHAO ASME B16.47 Series A Class 600 Welding Neck Flanges are manufactured from premium materials such as stainless steel, carbon steel and alloy steel. The standard flanges we offer meet the needs of most industrial applications; we also provide custom services to meet customer needs for special types and apertures of flanges. If you have specific technical specifications or design requirements, please feel free to contact our professional team and we will provide you with a personalized solution.

Class 600 dimensions | ASME B16.47 Series A Flange

  • All dimensions are in inches.
  • These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
Nominal Pipe SizeOutside Diameter (O)Bolt Circle (W)Raised Face Diameter (R)Number of HolesDiameter of HolesBore (B)Top of Hub (A)Hub Diameter (X)Minimum Fillet Radius (r)Minimum Thickness (T)Length Thru Hub (Y)Approximate Weight (lbs)
2640.0036.0029.50282.00Specified by purchaser26.0029.440.504.258.75940
2842.2538.0031.50282.12Specified by purchaser28.0031.620.504.389.251060
3044.5040.2533.75282.12Specified by purchaser30.0033.940.504.509.751210
3247.0042.5036.00282.38Specified by purchaser32.0036.120.504.6210.251375
3449.0044.5038.00282.38Specified by purchaser34.0038.310.564.7510.621540
3651.7547.0040.25282.62Specified by purchaser36.0040.620.564.8811.121705
3850.0045.7541.50282.38Specified by purchaser38.0040.250.566.0010.001470
4052.0047.7543.75322.38Specified by purchaser40.0042.250.566.2510.381630
4255.2550.5046.00282.62Specified by purchaser42.0044.380.566.6211.002030
4457.2552.5048.25322.62Specified by purchaser44.0046.500.566.8111.382160
4659.5054.7550.25322.62Specified by purchaser46.0048.620.567.0611.812410
4862.7557.5052.50322.88Specified by purchaser48.0050.750.567.4412.442855
5065.7560.0054.50283.12Specified by purchaser50.0052.880.567.7512.943330
5267.7562.0056.50323.12Specified by purchaser52.0054.880.568.0013.253560
5470.0064.2558.75323.12Specified by purchaser54.0057.000.568.2513.753920
5673.0066.7560.75323.38Specified by purchaser56.0059.120.628.5614.254280
5875.0068.7563.00323.38Specified by purchaser58.0061.120.628.7514.564640
6078.5071.7565.25283.62Specified by purchaser60.0063.380.699.1915.315000

Weld Neck Flange

Weld Neck Flange is a type of industrial pipe connection, especially used in pressure pipeline systems. Thanks to the high structural strength, sealing performance, corrosion resistance, and the characteristics of withstanding high temperature and pressure of the welding neck flange, it can be used for oil transportation pipelines, ship pipeline systems, and the transportation of raw materials in chemical plants, etc.

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FAQ

Any butt-weld fitting or weld-neck flange can be directly welded to any other butt-weld fitting or weld-neck flange without the need for any extra piece of pipe (Pup piece) between them.

The Weld Neck Flange offers increased strength under higher pressures, subzero or elevated temperatures that cause line expansion or retraction, or other variable forces. The Slip On Flange is connected to the pipe by two welds, one on the back side of the Flange and one on the inside of the Flange.

Weld Neck Flanges, It gives the highest level of joint integrity as it is butt-welded with a pipe. These types of flanges are used in high-pressure and temperature application.

Any butt-weld fitting or weld-neck flange can be directly welded to any other butt-weld fitting or weld-neck flange without the need for any extra piece of pipe (Pup piece) between them.

The Weld Neck Flange offers increased strength under higher pressures, subzero or elevated temperatures that cause line expansion or retraction, or other variable forces. The Slip On Flange is connected to the pipe by two welds, one on the back side of the Flange and one on the inside of the Flange.

Weld Neck Flanges, It gives the highest level of joint integrity as it is butt-welded with a pipe. These types of flanges are used in high-pressure and temperature application.