FEATURED PRODUCTS
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1.4404 Capillary Stainless Tube
Stainless steel capillary tube or pipe is produced in advanced welding or seamless cold drawn process, such as pull-out from the processing. Sufficient to guarantee the product’s level of accuracy and finish requirements. according to customer requirements need to control the inside diameter steel pipe wall thickness and tolerance, abrasive polishing process is in full compliance with SGS environmental protection requirements.Such pipes have good corrosion resistance, heat resistance, low temperature strength and mechanical properties; punching, bending, and other heat-processed, non-hardening heat treatment.
If you have any questions,please contact sales@grandsteeltube.com
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1.4404 Sanitary Stainless Tubes
The sanitary stainless steel tubes are used for the dairy, food, and beverage industries require a higher purity tubing than standard instrumentation grade. Sanitary stainless tubing offers a highly polished ID and OD to ensure cleanliness to prevent particulate entrapment. Baosheng offers a domestic tubing product manufactured which utilizing state-of-the-art TIG welding or seamless cold drawn process to produce a high quality tube featuring the superior fit and finish quality needed to ensure a problem-free beverage system.
If any questions,please contact sales@grandsteeltube.com
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High Pressure Fuel Injection Tube
Baosheng’s common rail fuel injection tubes are widely used for heavy-duty diesel engines precisely according to customer requirements and specifications. We supply the worldwide leading diesel engine manufacturers with high-pressure fuel injection pipes, common-rail piping systems. Such engines power off-road vehicles, ships, locomotives and electrical power generators.
All of our common rail fuel injection steel tubes are ground exactly to your specifications. Our reputation as a provider of common rail fuel injection steel tubes was built on our ability to meet and exceed the expectations of both client and industry standards.
If any questions,welcome to contact sales@grandsteeltube.com
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Large OD Welded Stainless Steel Pipe
Applications of Large OD welded stainless steel pipes
1) heat exchangers in refinery industries;
2) petrochemical plants; paper/pulp industries;
3) sugar/beverage industries
If any questions,please contact sales@grandsteeltube.com
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Bright Annealed Stainless Steel Tube
(1) Standard: ASTM/ASME A789/SA789, A790/SA790, En10216-5;etc
(2) Grade: 1.4301,1.4306,1.4401,1.4404, S31803,etc(3) OD range:5-88.9 mm,WT range: 0.5-12.7 mm
(4) Length: unbending length or fix length, 1-12 meters
(5) Marking: material grade, standard, specification, heat No.
(6) Package: knitting strip bundle, wooden box or steel box
(7) Mill test certificate: according to EN 10204 3.1
(8 Applications: heat exchangers in refinery industries;petrochemical plants;shipbuilding industries
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Olive Green Galvanized Steel Tube
1. We use high quality raw materials for the olive green galvanized steel tube. All raw materials are supplied from internationally known steel makers.
2. Each batch of raw material is checked for both chemical and mechanical properties, according to specifications.
3. During the cold drawing process, our inspectors check every bundle three times: once at the beginning of the process, once during the middle, and finally, at the end of the cold drawing process.
4. During the final heat treatment, every bundle has the surface checked, as well as mechanical properties through samplings.
5. Non-destructive testing and manual inspection for each tube ensure the 100% quality rate before galvanizationIf any questions,please contact sales@grandsteeltube.com
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Seamless High Precision Tube
Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. Color of tube: gray with white.
Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.If any questions,please contact sales@grandsteeltube.com
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Welded Stainless Coiled Tubes
Stainless steel tubing in coils and on spools used for control lines, chemical injection lines, umbilicals as well as hydraulic and instrumentation systems.
Used for a variety of circulation systems for different gases and fluids, coil tubes provide the ability for long length tube installations without the need for joining fittings. Baosheng produce seamless/welded stainless coil tubes and can provide them in long mill lengths or cut-to-length in sections as short as fifty feet. These products have industry applicability for petrochemical, oil production heat tracing,
The welded stainless coil tubes are widely used for a variety of circulation systems for different gases and fluids, coil tubes provide the ability for long length tube installations without the need for joining fittings. Baosheng offeres both welded and seamless coil tubes and can provide them in long mill lengths or cut-to-length in sections as short as fifty feet. These products have industry applicability for petrochemical, oil production heat tracing, geothermal and flow measurement applications.
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Seamless Stainless Coil Tube
The seamless stainless steel coil tubes are used for a variety of circulation systems for different gases and fluids, coil tubes provide the ability for long length tube installations without the need for joining fittings. Baosheng offeres both welded and seamless coil tubes and can provide them in long mill lengths or cut-to-length in sections as short as fifty feet. These products have industry applicability for petrochemical, oil production heat tracing, geothermal and flow measurement applications.
Oil & Gas – Chemical injection and hydraulic control lines in downhole and subsea applications. Our tubing has helped some of the most well-known oilfield service companies reduce operating costs and improve efficiencies.
Chemical Processing – When critical fluids are transferred in a chemical process environment our seamless tube eliminates the potential of a filler material to flake off and get trapped, resulting in inaccurate measurements or an overall system breakdown.
Alternative Energy – Coiled tubing for Hydrogen Refueling Stations, CNG Transfer, LNG Transfer, Geothermal and Solar Dishes.
Aerospace & Defense – We provide high grade MIL-Spec seamless stainless steel tube for applications such as Airframes, Fuel Lines, Gas Return Tubes for Automatic Weapons and Hydraulic Lines.
If any questions,please contact sales@grandsteeltube.com
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Bright Annealed Steel Tube
Synopsis of Process Routing: quality carbon steel → cold drawing → bright heat treatment without oxidization (NBK status) → nondestructive testing. In the wall honing and inside flushing under the high pressure→. Antirust oiling outside surface→ plastic capping on both ends.
Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. Color of tube: gray with white.
Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.If any questions,please contact sales@grandsteeltube.com
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White galvanized steel tubes
When producing galvanized steel tubes, we utilize advanced technical processing and use a chemical liquid imported from Germany. Both the inner and outer surfaces of the high precision steel tubes can be galvanized, giving them a high homogeneity and an excellent rust resistant performance.
Zinc wall thickness 8-12um, and customized as per customer requirements. Salt spray test: common requirements- 80-120 hours, high requirements- 120-300 hours Cr+6 free, environmental typeProcess Description
Using a high precision, fine drawn bright seamless steel tube as the steel pipe for galvanizing, the outer wall of the steel pipe is cold-galvanized, and both ends are covered for dust protection.
If any questions,please contact sales@grandsteeltube.com
ABOUT US


Baosheng Precision Tube Co.,Ltd,established in 2011,is a professional supplier of EN 10305 series welded & seamless precision carbon steel tubes and welded & seamless stainless steel tubes.we can provide our customers qualified steel tubes with specific solutions and the most effective manners. Our seamless steel tube factory-EN10305-1/4 seamless carbon steel tubes and stainless steel tubes,established in 2005,is located in Zhangjiagang covers an area of 12,000 square meters,has equipment with state of the art facilities to produce carbon precision tubes and stainless precision steel tubes,the production capacity is 550 tons per month in which 300 tons are carbon steel tubes with cold worked,bright annealed,black phosphate,zn-plated(white,yellow,olive green surface treatments) and 250 tons are precision stainless steel tubes-annlead & polished,bright annealed,grind & polished.
Our welded carbon steel tube factory-EN10305-2/3/5/6 welded & welded redrawn carbon steel tubes,established in 2004,is located in Changzhou covers an area of 15,000 square meters,has the modernized facilities to produce welded carbon precision steel tubes with diameters from 6.35mm to 76.20mm and the welded redrawn carbon steel tubes can also be produced in our workshop.most of our tubes are delivered for the automotive industry,the production capacity is 2,500 tons per month.
Baosheng boasts 19 years of experience in manufacturing seamless/welded carbon steel tubes and seamless/welded stainless steel tubes to meet the demands of the high performance steel tube market place. We pride ourselves in delivering our customers with top quality products and services. We want to be your supplier of high performance seamless stainless steel tubes, welded stainless steel tubes, and seamless/welded carbon steel tubes. We hope you will make us your partner in increasing your tube productivity while reducing your costs.
Changzhou Grand Import & Export Co.,Ltd, established in 2013,is offering more metal products with competitive prices like:seamless copper tubes,seamless brass tubes,seamless & welded titanium tubes,seamless aluminum tubes and low carbon single wall bundy steel tubes,copper brazed double wall bundy steel tubes and boiler and pressure steel tubes,honed steel tubes.etc
Changzhou Grand Import & Export Co.,Ltd has been assisting tube fittings and coils/sheet/rod/strips and bending tube products to overseas market since 2016.all of the parts manufactures we choose are qualified to produce the standard products that can meet the customers’ requirements.
U.K.,France,U.S.,Germany,Finland,Brazil,Chile,Argentina,Turkey,South Korea,Saudi Arabia are our main markets.We have been assisting tube requirements for customers in these countries since the very beginning of our business.We are looking forward to assisting your tube requirements. If you have any questions or enquiries,you are more than welcome to contact us sales@grandsteeltube.com
NEW PRODUCTS
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Bending Tube for Automotive Industry
Automotive tubes with standard EN10305-4,material E235,E255,E355 etc delivery condition-bright annealed.
1.Precision steel seamless tubes for automotive industry are made using the cold drawing process. Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.
2. The tubes are high precision in tolerance,excellent surface brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.
3. No deformation after cold bending,no crack after flaring and flattening.
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ISO8535-1 Fuel Injection Tube
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Diesel Engine Fuel Injection Tube Kit
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Fuel Injection Tube Kit
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Coiled Brass Tube
Seamless High Precision Brass tubing is used for a variety of engineering applications and, in particular the aerospace, power generation and automotive sectors. Its anti-corrosive, easy-to-work properties make brass tube ideal for water supply and plumbing components whilst its excellent visual appearance make it a popular choice in areas such as interior design, architecture, public art and even musical instruments.
If any questions,you are more than welcome to contact sales@tubesolutions.com.cn
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Square Brass Tube
In addition to sheets, plates, and bars, brass is also available in tube form. Brass tubes come in various lengths, wall thicknesses, and diameters to fit the needs of different applications, such as interior design and other metal fabrication projects.
Depending on the alloy, brass typically consists of approximately 65% copper and 35% zinc, resulting in a material that offers various beneficial properties, including corrosion resistance, toughness, hardness, formability, and more. However, it’s important to note that the higher the zinc content, the lower the corrosion resistance. Because of this, it’s important to consider the environment of your particular application when choosing the best brass tube material.
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Rectangular Brass Tube
In addition to sheets, plates, and bars, brass is also available in tube form. Brass tubes come in various lengths, wall thicknesses, and diameters to fit the needs of different applications, such as interior design and other metal fabrication projects.
Depending on the alloy, brass typically consists of approximately 65% copper and 35% zinc, resulting in a material that offers various beneficial properties, including corrosion resistance, toughness, hardness, formability, and more. However, it’s important to note that the higher the zinc content, the lower the corrosion resistance. Because of this, it’s important to consider the environment of your particular application when choosing the best brass tube material.
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Small Square Stainless Tube
Stainless steel square tube and rectangular tube is commonly referred to as tube steel or structural tubing. These are also referenced as a hollow structural section or HSS for short. Used for structural purposes, square tube, rectangular tube, I beams, etc., can be purchased in many different types of steel and alloys. Manufacturing of square tube is the same as the manufacturing process of pipe but the product goes through a series of shaping stands, meeting its final square specifications.
If you need more information,please contact sales@grandsteeltube.com
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Small Rectangular Stainless Tube
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Stainless Oval Tube
Because of their propensity to have extremely high ductility, stainless steel is favoured. Any oval stainless steel tubing’s ductility depends on its microstructure, which is a product of the metal’s alloying composition. Consider an alloy grade like 316 Stainless Steel Oval Tube as an example. The metal’s microstructure contains an austenite crystal. Nickel is a component of austenite’s alloy, which contributes to its formation and stability.
Austenite has a face centre cubic microstructure, also known as an FCC, which makes the alloy of Flat Oval Stainless Steel Tube ductile due to the tightly packed atoms. Due to their ductility, austenitic stainless steels may be formed into a variety of shapes, from simple square, rectangular, and round shapes to more intricate ones like the Flat Sided Oval Stainless Steel Tube. In addition to being produced in a variety of shapes, stainless steel oval tubes can have variable diameters, wall thicknesses, and circumferences.
The use of an oval tube has a number of advantages for users. For instance, stainless steel elliptical oval tubeshave a stronger construction and, despite being ductile, are more difficult to distort. Additionally, because to its extremely compact design, the majority of Oval Stainless Steel Tube Suppliers advise using these tubes in applications where there are issues with available space or where compact components are required.
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Straight brake line
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PVF Copper Brazed Bundy Tube-Brake Line