CS flange GOST 12820-80:
Carbon steel : A105, A36, Rst37.2, St37.2, C22.8, SA350 LF2/LF1, Q235, Q345, SS400,ASTM A105,20#, A234, 16Mn、ASTM A350 LF1,LF2 CL1/CL2,LF3 CL1/CL2、ASTM A694 F42,F46,F48,F50,F52,F56,F60,F65,F70
Application: petroleum, chemical, food industry, marine, etc.
Pressure grade: PN0.6Mpa, PN1.0Mpa,PN1.6Mpa, PN02.5Mpa
DN: 15-1200MM
Material:
Carbon steel : A105, A36, Rst37.2, St37.2, C22.8, SA350 LF2/LF1, Q235, Q345, SS400,ASTM A105,20#, A234, 16Mn、ASTM A350 LF1,LF2 CL1/CL2,LF3 CL1/CL2、ASTM A694 F42,F46,F48,F50,F52,F56,F60,F65,F70
Stainless steel: 304,304L,316,316L,F321,F347,F310，F44 F51,A276 S31803, A182, F43, A276 S32750,A705 631,632,A961, A484,
Alloy steel: ASTM A182 F1、 F5a、 F9、 F11、 F12、 F22、 F91、A182F12、A182F11、16MnR、Cr5Mo、12Cr1MoV、15CrMo、12Cr2Mo1、A335P22、St45.8/Ⅲ、35CrMoV、 45CrMo
Surface treatment:
Antirust oil, yellow, epoxy coating, nylon surface,hot galvanized,electrical galvanized
Making type: Forging