Carbon Steel Flange

Carbon steel flange,i.e.flange plate or end flange connector made of carbon steel.Including

Flanges made of carbon steel are called carbon steel flanges.Common materials are cast carbon steel grades WCB,forged

A105,or Q235B,A3,10×10×20,16 manganese,45 steel,Q345B,etc.

Generally,there are electroplated layers(yellow zinc,white zinc,etc.)on the surface of the flange to prevent rusting,or brush anti rust oil and spray anti rust paint

Rust paint treatment.

Carbon steel flange standard

The nominal diameter DN is 20,the outer diameter D is 100,the diameter D1 of the center circle in the bolt air is 75,the diameter D2 of the connecting projection is 58,the inner diameter D3 is 19,the flange

The thickness t*is 14/18,the protruding height F of the connecting part is 1,the number and diameter of bolt holes are 4-15,and the bolt diameter m is 12.

The nominal diameter DN is 25,the outer diameter D is 125,the diameter D1 of the center circle in the bolt air is 90,the diameter D2 of the connecting projection is 70,the inner diameter D3 is 25,the flange

The thickness t*is 14/18,the protruding height F of the connecting part is 1,the number and diameter of bolt holes are 4-159,and the bolt diameter m is 16.

The nominal diameter DN is 40,the outer diameter D is 140,the diameter D1 of the center circle in the bolt air is 105,the diameter D2 of the connecting projection is 85,the inner diameter D3 is 38,the flange

The thickness t*is 16/20,the protruding height F of the connecting part is 2,the number and diameter of bolt holes are 4-19,and the bolt diameter m is 16.