Carbon steel flanges are tight and reliable. It has two sealing surfaces, and the current ball valve sealing surface material uses a wide range of plastics, good sealing, can achieve a complete seal. Since the carbon steel flange has wiping properties during opening and closing, it can be used in media with suspended solid particles. Model Q41F--16C Q41F--25C American standard A105 about 0.9% (standard is 1.05Max with decreasing carbon content can reach 1.65%Max) As for national standard 16Mn content is about 1.3% (standard 1.2% ~ 1.6%) Japanese standard S25C If it is less than 0.6%.
The production process includes forging, casting, medium board rolling, and medium board cutting.
Among them, the highest forging price, the second for mid-plate products, and the lowest for casting products. In terms of quality, the best forging, the second for rolling, and the third for casting. However, the size of the forging is generally small.
Carbon steel flanges, that is, flanges or end flanges made of carbon steel. Which contains carbon steel flanges, called carbon steel flanges. Common materials are cast carbon steel grades WCB, forgings A105, or Q235B, A3, 10#, #20 steel, 16 Mn, 45 steel, Q345B, etc.
Usually to prevent the rusted flange surface plating layer (yellow zinc, white zinc, etc.), or brush anti-rust oil and spraying anti-rust paint treatment.