Carbon Steel Flanges Q235B

Carbon metal flange, that is, the flange or provide up flange connector made of carbon steel. It consists of a flange made of carbon steel, which is mentioned as a carbon steel flange. Common materials are strong carbon metal grade WCB, forging A105, or Q235B, A3, 10#, #20钢, sixteen manganese, forty 5 steel, Q345B, etc.

Usually to cease rust, there is an electroplating layer (yellow zinc, white zinc, etc.) on the floor of the flange, or brush anti-rust oil and spray anti-rust paint.

The strain marks excellent in this famous are divided into PN marks and Class marks.

The PN is marked with 12 stress classes

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

Class is marked with 6 stress classes

They are: Class 150; Class 300; Class 600; Class 900; Class 1500; Class 2500

Another which potential of carbon metal flange is: the flange produced in accordance with the dimension and tolerance vary required through way of the country wide standard, which is precise from the flange that is now no longer produced in accordance to the based size, in addition diagnosed as the 2nd appreciated flange (some human beings become aware of the non-standard flange is incorrect), regularly some unscrupulous stores will reduce the thickness of the flange, The outer diameter of two sizes to accumulate the reason of saving materials, as nicely as the use of scrap metal or scrap metal processing flange, in many instances this metal is a chemical composition and mechanical homes of the substandard waste, even greater with the black metal mill non-public steelmaking manufacturing flange, the non-public steelmaking science used in this non-public steelmaking can no longer assurance the mechanical residences and welding performance, the use of metal might also moreover now now no longer be in a characteristic to weld with the steel pipe, or the metal itself has cracks, pores, etc. Therefore, when buying for flanges, attempt to select out carbon metal flanges.

Features and parameters

Carbon metal flanges are tight and reliable. It has two sealing surfaces, and the sealing floor material of the ball valve is drastically used in a vary of plastics, which has right sealing standard usual overall performance and can accumulate whole sealing. Since carbon steel flanges are wipeable in the course of opening and closing, they can be used in media with suspended constant particles. Model: Q41F--16C Q41F--25C American favored A105 is about 0.9% (the based is 1.05Max, which can restrict with the carbon content material fabric fabric to 1.65% Max), and the content material cloth fabric of the u . s . a . vast normal 16Mn is about 1.3% (standard 1.2%~1.6%), and the Japanese well-known S25C is as a replacement low, under 0.6%.

Commonly used processes

The manufacturing method consists of forging, casting, medium plate rolling, medium plate cutting, etc.

Among them, the forging fee is the highest, the medium plate product is the second, and the casting product is the lowest. In phrases of quality, cast is the best, rolled is the second, and forged is the third. But the diameter of the forging is frequently smaller.