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")
Stainless Steel Threaded Flange, ASTM A351, MF, FF
Carbon Steel Threaded Flange, ASTM A105, ASME B16.5
ANSI B16.5 Threaded Flange, Raised Face, DN15-600
ASTM A182 Alloy Steel Threaded Flange, API 605, RF
ASME B16.5 Blind Flange, CS, AS, SS, DN10-2000
ANSI B16.9 Socket Weld Flange, CS, AS, SS, 150-2500LB
DIN ASTM A182 Alloy Steel WN Flanges, RTJ, PN6-40
DIN Alloy Steel Blind Flange, RTJ, PN6-40
JIS Alloy Steel Slip-on Flange, RF, 10-40K, Black
Alloy Steel Orifice Flange, MF, API 600, 900LB
ASME/ANSI B16.5 Slip-on Flanges, CS, AS, SS, 150-2500LB
