Asme B16.47 Ser,B Welding Neck Flanges
Your Professional Asme B16.47 Ser,B Welding Neck Flanges Supplier
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Mainly produce flanges and forgings of various specifications. Application in piping installation, pressure vessel, equipment accessories.
Why Choose Us
Our Service
With strong technical force, advanced production technology, perfect quality inspection, and reliable after-sales service, it provides a basis for supervision and cooperation for many customers at home and abroad.
Our Certificate
The company Excellent Supplier of 2019 Safety production standardization certificate Quality management system certification.
Production Market
The products are mainly exported. It is exported to Europe, America and other countries and regions. The product quality is good, and the service is attentive. It is deeply appreciated and trusted by customers and users at home and abroad, and has won a high reputation. They have become one of the largest flange and forging suppliers in China.
Our Factory
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment.
Features of Asme B16.47 Ser,B Welding Neck Flanges
Butt welding connection:
The large diameter butt welding flange has a welding neck, which can be directly welded with the pipe to provide a stable connection.
High strength:
Due to the use in high-pressure and high-temperature environments, these flanges are usually made of high-temperature-resistant, high-strength materials to ensure their performance and safety.

Suitable for high pressure and high temperature:
Due to its design and material characteristics, this flange is very suitable for high pressure and high temperature applications.
Excellent sealing performance:
Flange connections usually need to have good sealing performance to prevent leakage, so the large-diameter butt welding flange is designed with a sealing surface to ensure a good sealing effect.
Asme B16.47 Ser,B Welding Neck Flanges Dimensions
|
Pipe Normal Diam. |
O.D. |
Thick |
Length |
Diam. of |
Hub |
Raised |
Diam. of |
No. of |
Diam. of |
Diam. of |
Fillet |
|
Inch |
O |
C |
Y |
X |
A |
R |
BD |
BN |
BH |
DB |
R1 |
|
26" |
762 |
33.3 |
58.7 |
676.1 |
661.9 |
704.9 |
723.9 |
36 |
19.1 |
5/8" |
7.9 |
|
28" |
812.8 |
33.3 |
62 |
726.9 |
712.7 |
755.7 |
774.7 |
40 |
19.1 |
5/8" |
7.9 |
|
30" |
863.6 |
33.3 |
65 |
777.7 |
763.5 |
806.5 |
825.5 |
44 |
19.1 |
5/8" |
7.9 |
|
32" |
914.4 |
35.1 |
69.9 |
828.5 |
814.3 |
857.3 |
876.3 |
48 |
19.1 |
5/8" |
7.9 |
|
34" |
965.2 |
35.1 |
73.2 |
879.3 |
865.1 |
908.1 |
927.1 |
52 |
19.1 |
5/8" |
7.9 |
|
36" |
1033.5 |
36.6 |
85.8 |
935 |
915.9 |
965.2 |
992.1 |
40 |
22.4 |
3/4" |
9.7 |
|
38" |
1084.3 |
38.1 |
88.9 |
985.8 |
966.7 |
1016 |
1042.9 |
40 |
22.4 |
3/4" |
9.7 |
|
40" |
1135.1 |
38.1 |
91.9 |
1036.6 |
1017.5 |
1066.8 |
1093.7 |
44 |
22.4 |
3/4" |
9.7 |
|
42" |
1185.9 |
39.6 |
95.3 |
1087.4 |
1068.3 |
1117.6 |
1144.5 |
48 |
22.4 |
3/4" |
9.7 |
|
44" |
1251 |
42.9 |
104.6 |
1140 |
1119.1 |
1174.8 |
1203.5 |
36 |
25.4 |
7/8" |
9.7 |
|
46" |
1301.8 |
44.5 |
108 |
1190.8 |
1169.9 |
1225.6 |
1254.3 |
40 |
25.4 |
7/8" |
9.7 |
|
48" |
1352.6 |
46 |
111.3 |
1241.6 |
1220.7 |
1276.4 |
1305.1 |
44 |
25.4 |
7/8" |
9.7 |
|
50" |
1403.4 |
47.8 |
115.8 |
1293.9 |
1271.5 |
1327.2 |
1355.9 |
44 |
25.4 |
7/8" |
9.7 |
|
52" |
1457.5 |
47.8 |
120.7 |
1344.7 |
1322.3 |
1378 |
1409.7 |
48 |
25.4 |
7/8" |
9.7 |
|
54" |
1508.3 |
49.3 |
125.5 |
1397 |
1373.1 |
1428.8 |
1460.5 |
48 |
25.4 |
7/8" |
9.7 |
|
56" |
1574.8 |
50.8 |
134.9 |
1450.8 |
1423.9 |
1485.9 |
1521 |
40 |
28.4 |
1" |
11.2 |
|
58" |
1625.6 |
52.3 |
138.2 |
1501.6 |
1474.7 |
1536.7 |
1571.8 |
44 |
28.4 |
1" |
11.2 |
|
60" |
1676.4 |
55.6 |
144.5 |
1552.4 |
1525.5 |
1587.5 |
1622.6 |
44 |
28.4 |
1" |
11.2 |

Carbon Steel: ASTM A105/SA105, A350 LF2.
Alloys: Various high yield carbon steels (ASTM A694).
Stainless Steels: Duplex (S31803/F51), Super Duplex (S32750/F53).
Nickel Alloys: Nickel 200, 201.
Asme B16.47 Ser,B Welding Neck Flanges Weight
|
Nominal Size |
Weight of Weld Neck Flange |
|
48 |
4980 |
|
46 |
4640 |
|
44 |
4300 |
|
42 |
3960 |
|
40 |
3620 |
|
38 |
3385 |
|
36 |
2520 |
|
34 |
2450 |
|
32 |
2065 |
|
30 |
1820 |
|
28 |
1520 |
|
26 |
1050 |
Process of Asme B16.47 Ser,B Welding Neck Flanges
Preparation and Inspection
First, make sure the pipe and joint are whole. Look for cracks, damage, or dirt in the weld that could weaken it. Make sure you have the right tools for the job.
Alignment
For the join to work, the pieces must be perfectly lined up. Make sure the pipe and joint are lined up right with tuning tools. It is very important to do this step so that stress doesn't build up and forces are spread out properly across the joint.
Tack Welding
Once everything is in place, do tack welds around the edge of the joint several times. The small welds hold the plate and pipe in place while the big welds are being made. For most jobs, four tack welds spread at 90-degree intervals are enough.
Preheating
You might need to heat the welding neck flanges up first to keep them from breaking when they cool down too fast. How thick the cloth is and what kind it is make the difference. Pay close attention to how to really heat up the things that are going to be combined.
Full Welding
These are the first welds that are made. If the job needs it, you can use TIG, MIG, or SMAW to weld. Hold the piece together and join it with welding.
Post-weld Heat Treatment
It may be necessary to heat treat some layers and materials after the weld is done to make the joint stronger and less stressed.
Inspection and Testing
Test the weld in both safe and risky ways once it's done to make sure it meets all quality and safety standards.
If welders carefully follow these steps, they can make a strong link between the pipe and the weld neck lip. This keeps the whole set of pipes together.
FAQ
We're well-known as one of the leading asme b16.47 ser,b welding neck flanges manufacturers and suppliers in China. If you're going to wholesale high quality asme b16.47 ser,b welding neck flanges with competitive price, welcome to get more information from our factory. Also, customized service is available.
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