Changsha Xiangjia Metal Materical Co., Ltd.

Precision seamless steel pipe   is a high-precision steel pipe processed by cold drawing or hot rolling. It is used to produce pneumatic or hydraulic products, such as air cylinders or oil cylinders. The chemical composition of precision seamless steel pipes includes carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr. Features of precision seamless steel pipe 1. The outer diameter is small. 2. High precision can be used for small batch production. 3. The cold-drawn precision seamless pipe has high precision and good look. 4. The horizontal of the steel pipe is complicated. 5. The performance of the steel pipe is superior, and the metal is denser. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacit...

Hot-dip galvanized precision  seamless steel pipes  are gray or dark gray. Sometimes the surface pure zinc layer of pipe turn into gray after galvanizing due to iron content, causing color difference. Why does this happen?   Specific reason: 1. The material of the plated parts contains lots elements such as carbon, silicon, sulfur, and phosphorus. The electrochemical reaction between iron and zinc is due to the inert electrode formed by this type of element, and the relative potential becomes higher, which causes the iron and zinc reaction to intensify.   2. The content of aluminum and other metal elements in the zinc liquid is low, and for active steel and other materials galvanizing, the iron-zinc reaction cannot be effectively suppressed.   3. The increaseed iron content in the zinc liquid deteriorates the quality of the zinc liquid.   Improvement measures: 1. According to the material, choose the appropriate galvanizing temperature; 2. Adjust the compos...

Precision steel pipe   is a high-precision steel pipe material processed by cold drawing or hot rolling. Due to the inner and outer walls of precision steel pipes have no oxide layer, high pressure without leakage, high precision, high smoothness, cold bending without deformation, flaring, flattening without cracks, etc., they are mainly used to produce pneumatic or hydraulic components, such as cylinders, could be a seamless tube or a welded tube. The chemical composition of precision steel pipes includes carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr. Specifications of precision steel pipes 10# 0.07~0.13 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 20# 0.17~0.23 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 35# 0.32~0.39 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 45# 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 40cr 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.08~1.10 25Mn 0.22~0.2 0.17~0.37 0.70~1.00 ≤0.035 ≤0.035 ≤0.25 37Mn5 0.30~0.39 0.15~0.30 1.20~1.50 ≤0.015 ≤0.020 Changsha Xia...

Precision seamless steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. The precision seamless steel pipe has no oxide layer, and can withstand high pressure with no leakage, high precision, high finished, non- deformation in cold bending, flaring, and no cracks during flattening. So that the precision seamless steel pipe used to produce pneumatic or hydraulic components, such as cylinders or oil cylinders. 　 Features of precision seamless steel pipe 1. Smaller outer diameter. 2. High precision can be used for small batch production. 3. Cold drawn products have high precision and good surface quality. 4. The horizontal area of steel pipe is more complicated. 5. The steel pipe has better performance, and the metal is denser. Standard: GB/T3639, GB/T8713, DIN2391-2, HK15-2000 Whatsapp: +86 15920063508 Email: lily@adtooo.com