SS 321 Flanges

product name:321 ss flange

Material:

CS (carbon steel): 20#,20G,Q235B

AS (alloy steel):Q345(16Mn),12CrMoV,15CrMo,09MnNiD

SS (stainless steel):304,304L,316,316L,312,202,317

SA105M,SA234-WPB

Wall Thickness: 

Sch10 , Sch20 , Sch30 , Sch STD , Sch40 , Sch60 , Sch XS , Sch80, Sch100, Sch120, Sch140 Sch160 , Sch XXS,

Pressure Reating:Class 150, 300, 600, 900, 1500, 2000, 3000, 6000, 9000 LBS

Standards:

Domestic Standard:

HG20592-20614/HG20615

JB4703/JB4721

SH3406

Foreign Standard:

ASME B16.5 /ASME B16.47/ASME B16.36/ASME B16.48/DIN/BS/JIS/KS

Surface treatment:

Black painting, anti-rust varnish, anti-rust oil, hot-galvanized, etc.

Applications:

Petroleum,gas,chemical,metallurgy,electric station,shipbuilding,construction,etc.