Gost Steel Flange (GOST12820, GOST12821)

GOST flange, GOST steel flange, GOST cast flange, GOST Casting flange
ANSI/ASME B 16.5 Standard: GOST
Face: Raised Face (RF), Flat Face(FF), Ring Joint (RTJ)
Pressure Rating:
PN 6, PN 10, PN16, PN25, PN40, PN64;
Surface:
Rust-preventative Oil: Colorless oil with liquid state on surface
Rust-preventative Paint: Black Coating, Varnish Coating, Yellow Coating
Galvanized: Hot DIP Galvanized.

Main Material:
Carbon Steel:
ASTM A105, Q235, Q345
RST37.2, C22.8, S235JRG2, P245GH, P250GH, P265GH, P280GH
A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2,
ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
ST 37.2, C22.8
Stainless Steel:
ASTM A182 F304/304L, F316/316L, F316H, F316Ti, F321,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571
F44(UNS S31254).

Alloy Steel:
ASTM A182 F1, F5/a, F9, F11, F12, F22, F91
16Mo3, 13CrMo44, 10CrMo9
Duplex & Super Duplex Steel: ASTM A182 F51/UNS S31803, F53/UNS S32750 F55/UNS S3260
Special Alloy Steel: Monel400, Inconel 600, Inconel 62, Inconel 800, Inconel 825, Monel, Hastelloy, Titanium.