Executive standard of stainless steel flange

Steel Pipe Flanges (GB/T9112~GB/T9124-2010)

GB/T9123-2010 Steel Pipe Flange Cover

American Standard ASME B16.5-2017 Pipe Flanges and Flanged Fittings

Chemical HG/T20592-2009 Steel Pipe Flanges

Chemical HG/T20615-2009 Steel Pipe Flanges

Petrochemical SH/T3406-2013 Petrochemical Steel Pipe Flanges

Specification and model of stainless steel flange

PN2.5 (0.25MPa) DN10-DN2000 sealing surface: RF, FF

PN6 (0.6MPa) DN10-DN2000 sealing surface: RF, FF

PN10 (1.0MPa) DN10-DN1200 sealing surface: RF, FF, FM/M, T/G

PN16 (1.6MPa) DN10-DN1200 sealing surface: RF, FF, FM/M, T/G

PN25 (2.5MPa) DN10-DN600 sealing surface: RF, FM/M, T/G

PN40 (4.0MPa) DN10-DN600 sealing surface: RF, FM/M, T/G

PN63 (6.3MPa) DN10-DN400 sealing surface: RF, FM/M, T/G, RJ

PN100 (10.0MPa) DN10-DN400 sealing surface: RF, FM/M, T/G, RJ

PN160 (16.0MPa) DN10-DN300 sealing surface: RF, FM/M, T/G, RJ

Applicable steel pipe outer diameter series: Series A and B are consistent

Class150 (PN20) DN15 - DN600 sealing surface: RF, FF, RJ

Class300 (PN50) DN15 - DN600 sealing surface: RF, FM/M, T/G, RJ

Class600 (PN110) DN15 - DN600 sealing surface: RF, FM/M, T/G, RJ

Class900 (PN150) DN15 - DN600 sealing surface: RF, FM/M, T/G, RJ

Class1500 (PN260) DN15 - DN600 sealing surface: RF, FM/M, T/G, RJ

Class2500 (PN420) DN15-DN300 sealing surface: RF, FM/M, T/G, RJ

Common material of stainless steel flange

ASTM F304、S30408、06Cr19Ni10、0Cr18Ni9

ASTM F316、S31608、06Cr17Ni12Mo2、0Cr17Ni12Mo2

ASTM F304L、S30403、022Cr19Ni10、00Cr19Ni10

ASTM F316L、S31603、022Cr17Ni12Mo2、00Cr17Ni4Mo2

ASTM F321、S32168、06Cr18Ni11Ti、0Cr18Ni10Ti

Pressure rating of stainless steel flange

0.1MPa ≤ low pressure ＜ 1.6MPa ≤ medium pressure ＜ 10MPa ≤ high pressure ＜ 100MPa ≤ ultra-high pressure

Mpa：0.6Mpa ～32Mpa

PN：PN2.5~160

PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400

MPa：2.5~16MPa

Class：Class150~2500

Class150; Class300; Class600; Class900; Class1500; Class2500