SO flange

Name

Size

Standard And 
Steel Grade 

Steel Grade

Face Type

Type

Applications

D

RATING

Flange

1/2"～60"      
(DN15～DN1500)

150#,300#,

600#,900#,

1500#,

2500#-150LB,
300LB,600LB,
900LB,1500LB,

2500LB

ASME/ANSI B16.5, ASME B16.47 A&B,

CARBON STEEL :

ASTM/ASME SA/A105/105N 
LOW TEMPERATURE CARBON STEEL :

ASTM/ASME SA/A350 LF1/LF2/LF3
HIGH YIELD CARBON STEEL :

ASTM/ASME SA/A694 F52/60/65/70
STAINLESS STEEL:

ASTM/ASME SA/A182 F304/304L /316/316L/321/321H 
ALLOY STEEL:

ASTM/ASME  SA/A182 F1/F5/F9/F11/F22/F91

Flat Face   Flange (FF)
Raised Face  Flange (RF);
Groove  Flange (GF)
 Male Flange (M)
Ring type
Joints Face (RTJ)

Slip-On flange
Weld Neck Flange
Blind Flanges ;
Lap Joint Flanges;
Socket Welding Flanges (SW);
Threaded Flanges;
 Welding Neck Flange

Widely used in petroleum, power generation, natural gas, chemicals, shipbuilding, paper making and metallurgy, and so on.