Alloy steel threaded flange also called as screw threaded flange is widely used for connection of welded pipes. Alloy steel threaded flange is convenient for installation without welding. Inner bore of flange is processed into pipe thread so that the flange can realize connection between pipes with screw thread. Compared with slip-on flange or welding neck flange, alloy steel threaded flange has the advantages of convenience for installation and maintenance. It can be used for the pipes which do not allow welding. Alloy steel threaded flange has enough strength. Alloy steel threaded flange cannot be used in case of leakage, if the temperature on pipes varies sharply or the temperature is higher than 20℃ or lower than -45℃.
Parameter
Design: API 605, API 600
Materials: alloy steel: ASTM A182, ASTM A182 F12, ASTM A182 F11
Nominal Pressure: ANSI Class 150Lb, 300Lb, 600Lb, 900Lb, 1500Lb, 2500Lb
Applicable range
Seal face
ANSI
150LB
300LB
600LB
900LB
1500LB
2500LB
Raised face (RF)
DN15-600
DN15-300
Male face (MF)
-
DN15-600
DN15-65
DN15-300
Tongue face (TG)
-
DN15-600
DN15-65
DN15-300
Full face (FF)
DN15-600
-
Ring joint face (RJ)
DN25-600
DN15-600
DN15-300
(1/2"-24")
(1/2"-12")
(1/2"-24")
(1/2"-2.1/2")
(1/2"-12")
(1/2"-24")
(1/2"-2.1/2")
(1/2"-12")
(1/2"-24")
(1/2"-24")
(1/2"-24")
(1/2"-12")
ASTM A182 Alloy Steel Threaded Flange, API 605, RF
DIN ASTM A182 Alloy Steel WN Flanges, RTJ, PN6-40
Stainless Steel Threaded Flange, ASTM A351, MF, FF
JIS Alloy Steel Slip-on Flange, RF, 10-40K, Black
ASTM A182 Blind Flange, ANSI B16.5, RF, 150-1500LB
Alloy Steel Orifice Flange, MF, API 600, 900LB
Carbon Steel Threaded Flange, ASTM A105, ASME B16.5
Stainless Steel Orifice Flange, RJ, ASTM A182, PN100
