Carbon steel flanges of different thicknesses must have different bolts to fasten

Flanges are disc-shaped parts that are common in plumbing and are used in pairs and with the matching flanges on the valve. In plumbing, flanges are primarily used for pipe connections. In the pipelines that need to be connected, a variety of flanges are installed. The low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A gasket is placed between the two flanges and then bolted. Different pressure flanges have different thicknesses and use different bolts.

Stainless steel flanges are stainless steel flanges. Because stainless steel has good corrosion resistance, it can keep the structural integrity of the structural components. Stainless steel flanges do not cause corrosion, pitting, rust or wear. The chrome-containing stainless steel flange also combines mechanical strength and high elongation, making it easy to manufacture parts and components, satisfying the needs of architects and structural designers. All metals react with oxygen in the atmosphere to form an oxide film on the surface. If a hole is formed, it can be plated with paint or an oxidation resistant metal to ensure the carbon steel surface, but as is known, this protection is only a film.

In plumbing, stainless steel flange flanges are primarily used for connecting pipes. Pipes to be connected, various installed flanges, low pressure pipes may use wires connected to the flanges, use over 4 kg of pressure welded flanges, seal the two flanges between the points, and then tighten with bolts. Different pressure flanges, with different thicknesses and using different bolt pumps and valves and pipe connections, these parts of the device also do the corresponding flange shape.

Comparing the physical properties of stainless steel and carbon steel, the density of carbon steel is slightly higher than that of ferrite and martensitic stainless steel, and slightly lower than that of austenitic stainless steel; the resistivity is carbon steel, ferrite type, martensite type and The order of austenitic stainless steel is increasing; the order of linear expansion coefficient is similar, the austenitic stainless steel is high and the carbon steel is small; the carbon steel, ferritic and martensitic stainless steel are magnetic, and the austenitic stainless steel is non-magnetic. However, when cold working hardening forms a phase transformation, magnetism will be generated, and the martensite structure can be removed by heat treatment to restore its non-magnetic property.