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Pooja Steel India

Pooja Steel India

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Threaded Flange

Threaded/Screwed Flanges offer a weld-free connection to pipes, making them ideal for small pipes and low-pressure applications. They are particularly beneficial in industries where welding is hazardous, such as highly combustible environments. These flanges can be easily fitted to pipes with external threads and are cost-effective solutions for various industries.

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Description

Threaded/Screwed Flange Standard Specifications
SpecificationDescription
Dimension StandardANSI B16.5, MSS SP44, Custom Drawings
Size Range1/2″ (15 NB) to **3″ (80 NB)** (**Limited size range**)
Pressure Classes150, 300, 600 LBS (**Not recommended for higher classes**)
DIN StandardsDIN2527, DIN2642, DIN2635, DIN2638, DIN2673, etc.
BS StandardsBS4504, PN6, PN10, PN16, PN25, PN40, etc.
API StandardsPSI-2000/3000/5000/10000, etc.
JIS Standards2220-2004 5k/10k/16k, etc.
Flange Face TypesFF (Flat Face), RF (Raised Face), RTJ (Ring Type Joint)

Threaded/Screwed Flange Material & Grades

  • Stainless Steel: ASTM A 182, A 240 (See grades below – 304, 316, 321, 347, 904L)
  • Duplex & Super Duplex Steel: ASTM / ASME A/SA 182 F 44, F 51, F 53, F 55, F 60, F 61
  • Carbon Steel: ASTM / ASME A/SA 105, A 350, A 181 LF 2, A516 Gr.70, A694, etc.
  • Low Temp Carbon Steel: ASTM A350 LF2, LF3
  • Alloy Steel: ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F22, F91
  • Copper Alloy Steel: ASTM SB 61, SB62, SB151, SB152
  • Nickel Alloy: ASTM SB564, SB160, SB472, SB162, etc.