The necessary steps for repairing chloride ion corrosion leakage points in stainless steel seamless elbows are threefold: ① Polish the leakage point until the metal color is exposed; ② Apply specialized chloride ion anti-corrosion coating (such as KNM22 type) to block corrosion; ③ The outer layer is wrapped and welded with 316L material sleeves. Do not directly repair welding without [...]

The dimensional instability of stainless steel seamless elbows after cold drawing process is mainly related to four factors: material, process, mold, and stress. Let's first talk about the manifestations of dimensional instability: fluctuations in outer diameter, uneven wall thickness, bending deformation, etc. 1. Magnification of material defects themselves Segregation and inclusions: Steel pipe billets exhibit sulfur phosphorus segregation or central [...]

The main reason for the occurrence of bending wrinkles in stainless steel seamless elbows is the loss of process control. There are two triggers: 1. Excessive bending angle: The wrinkling rate of a 90 ° bend is 50% higher than that of a 45 ° bend (due to excessive stretching of the outer material during bending). 2. Mold deviation: Expansion [...]

Stainless steel seamless elbow is a turning tool in water pipe systems, used to make straight pipes easily turn, such as in factories, buildings, or various equipment, to help water flow, gases, or chemical liquids change direction steadily without leaking out. This type of elbow is formed without welding seams, eliminating the risk of stress concentration and leakage caused by [...]

Stainless steel seamless elbow is a seamless hard bone elbow, which means that it cannot find a single weld seam all over its body. It will not explode from the interface under high pressure and has strong pressure resistance. It can withstand the sulfuric acid/alkali solution in chemical factory pipelines, withstand the steam pressure of high-pressure boilers, and withstand the [...]

Stainless steel seamless elbows rust when the protective film on the surface is damaged, causing oxidation reactions of iron elements in contact with air or corrosive substances. There are many reasons for rusting, which may be buying counterfeit/inferior steel pipes, coming into contact with chloride ions, welding damage, surface scratches, or long-term exposure to humid and hot environments! How to [...]