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Stainless Steel Thread and Forged Steel Flange

Forging & Casting  Stainless Steel Flanges
A flange nut is a nut that has a wide flange at one end that acts as an integrated, non-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.

There are many different flange standards to be found worldwide. To allow easy functionality and interchangeability, these are designed to have standardised dimensions. Common world standards include ASME (USA), DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean).

Pipe flanges that are made to standards called out by ASME B16.5 or ASME B16.47, and MSS SP-44. They are typically made from forged materials and have machined surfaces. ASME B16.5 refers to nominal pipe sizes (NPS) from ½" to 24". B16.47 covers NPSs from 26" to 60". Each specification further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5, and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900. However these classes do not correspond to maximum pressures in psi. Instead, the maximum pressure depends on the material of the flange and the temperature. For example, the maximum pressure for a Class 150 flange is 285 psi, and for a Class 300 Flange it is 740 psi (both are for ASTM A105 Carbon Steel and temperatures below 100F).

Flange dimensions are determined by the pipe size and the pressure class required for the application. Flanges are standardized according publications from organizations like ASME, MSS, API and others.

Bangdong is one of the leading manufacturers and exporters of Steel Flanges. Our proficient and skilled team is specialized in manufacturing durable range of Steel Flanges which are available at reasonable rates. Steel Flanges manufactured at our unit using superior quality steel. The Steel Flanges are popular for their rust resistance and robustness. Steel Flanges for the clientele are made available in regular and custom-made specification. Hence we are one of the highly sought after Steel Flanges manufacturer in China.

1. Flange Type:
PL:Plate flange 
WN:Weld Neck Flange, 
LJ:Lap Joint Flange, 
TH:Thread Flange, 
SO:Slip On Flange, 
SW:Socket Welding Flange, 
BL:Blind Flange, 
Orifice Flange, Wind Power Flange, Spectacle Blind Flange and so on...

2. Our company's Material (grade):
Stainless Steel: 304 F304 SUS304 316 316L 304L 321 F321 SUS321 316Ti 304H 
              S30408 S30403 S30400 S31803 S31603 1.4301 1.4306 1.4845 1.4401 
              1.4571 1.4404 1.4438 1.4541 
Duplex :  317 317L 2205 2520 2507 F347 904L F51 F53 310S 1.4550 1.4438 1.4462

3. Size: 1/2" to 72" NB =DN10~DN5000 standard one and non-standard one
4. Pressure Ratings: Class 150, 300, 600, 900, 1500 and 2500
   Pressure Ratings: JIS 5K, 10K, 16K and 20K 30k 
  Pressure Ratings: PN6 PN10 PN16 PN25 PN40 PN63 PN100 PN160 PN250 

5. Standard: ASME B16.5, ASME B16.47, ASME B16.48, JIS B2220, DIN2633 DN2527 
           DIN2576 DIN86030, AWWA, SABS1123, EN1092-1, BS4504 BS10 ,KS 
           GOST12820 12821, DIN2543, UNI2278 2277. API6A.

6. Flange Facing: TG, RF, FM, M, FF, RTJ