- Flanges
Lap Joint Flanges
Thickness SCH10,STD,SCH40,SCH60,XS, SCH80,SCH120,SCH160,XXS
Materials:
ASTM A105 – Forged Carbon Steel
ASTM A181 – Forged Carbon Steel for General Purpose
ASTM A182 – Forged Alloy Steel and Stainless Steel
ASTM A350 – Forged Alloy Steel for low temperature services
Specification of Lap Joint Flanges
LJ Forged Flange: DN15-DN600
Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
Lap Joint Flange Pressure Grade
PN0.25MPa,PN0.6MPa,PN1.0MPa,PN1.6MPa,PN2.5MPa,PN4.0MPa;
Lap Joint Flange Standards
ANSI B16.5
Male Face Steel Butt Weld Ring Lap Joint Pipe Flange with Neck: GB/T 9118.1-2000;
Ring Lap Steel Joint Pipe Flange with Neck: GB/T 9118.2-2000;
Butt Welding Lap Joint Pipe Flange: HG 20599-1997;
Flat Welding Lap Joint Pipe Flange: HG 20600-1997;
Sealing Surface Types For Lap Joint Pipe Flanges
RF (Raised Face);
FF (Flat Face);
M&F (Male-and-Female Face);
RTJ (Ring-Type Joint)
F (Female Face);
M (Male Face);
T&G (Tongue and Groove Face);
Lap Joint Flange Materials
Carbon Steel Flange: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65 ,F70;
Stainless Steel Flange: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;
Alloy Steel Flange: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ
