Intergranular corrosion so that the binding force between the grains greatly weakened, serious mechanical strength can completely lost. For example, suffer from this corrosive stainless steel air-conditioning pipe specifications, the surface looks very bright, but can not afford to gently tap it broken into fine particles. Due to intergranular corrosion is not easy to check, so suddenly broken ten automotive air-conditioning pipe plant equipment ting people, it's great danger. Between materials with high corrosion susceptibility of stainless steel, nickel-based alloys, aluminum alloys, magnesium alloys are crystalline. Use or welding process can cause intergranular corrosion problems in the heating situation. To intergranular corrosion of origin under the combined effect of stress and medium air conditioning duct, make stainless steel, aluminum and other induced intergranular stress corrosion, intergranular corrosion so sometimes stress corrosion pilot. 303 and 303Se are cutting stainless steel containing sulfur and selenium, the main requirements for cutting and table Guanghao high occasions. 303Se also necessary for the production of stainless steel hot forging of parts, because the air conditioning pipes under such conditions, this steel has good hot workability. 304L is a low-carbon 304 stainless steel variant, the need for welding applications. Lower carbon content makes it close to the weld heat affected zone to minimize carbide precipitation, and carbide precipitation may lead to intergranular corrosion of stainless steel in some environments (welding erosion). Qingdao conditioning duct | air conditioning tubes | stainless steel pipe manufacturers supply provided by the Shandong Jinding Stainless Steel Pipe Co., Ltd. Shandong Jinding Stainless Steel Pipe Co., Ltd. (www.ss304L.com) (www.ss304L.com) strong, credible, in Dezhou steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinding Pipe into the brilliant and you work for a better future!