Professional manufacturer of seamless stainless steel coils

Gongyang Baofeng Precision Clean Tube Co., Ltd. is a professional enterprise dedicated to the research and production of stainless steel and special alloy steel ultra long coil tubes. Jointly funded by Baofeng Steel Industry Group and Zhejiang Jingning Clean Steel Pipe Co., Ltd. The production plant covers an area of over 30000 square meters, with over 220 employees and a total investment of 150 million yuan. It has built four world-class stainless steel ultra long seamless coil dedicated production lines. The production process adopts: hot extrusion/side hole+cold rolling+cold drawing+bright vacuum solid solution heat treatment. The annual output of stainless steel seamless coil is 12000 tons, providing safe and reliable products for oil, natural gas, power, semiconductor, nuclear power, chemical industry, shipbuilding, new energy and other fields. The production and sales of coil tubes rank among the top in the country.

Product Center
The company has 22 years of professional production experience in stainless steel ultra long seamless coils, and through unremitting research and development investment, our product quality continues to improve.
See more
Stainless steel seamless coil
尺 1/8 "-1'(03mm-025mm) ; : 0.020 "-0.083" (0.5mm 3mm) ; 材L : 304/304L 321 316/316L 904L[UNK] 8825[UNK] 2205..
Latin: ASTM A213 ASTM A312 ASTM A269ASTMM A270
Application scope
Widely used in petroleum drilling, ship manufacturing, remote hydraulic control pipelines, wound tube heat exchangers, ultra pure gas pipelines, prefabricated heat tracing pipelines, pipeline heat tracing pipes, ship pressure instrument pipelines, marine umbilical cables, stainless steel coil heat exchangers, evaporators, condensers, coaxial sleeve heat exchangers, etc
See more
High pressure pipeline of hydrogen refueling station
Continuous tubing is a type of pipe made of low-carbon alloy steel, also known as flexible tubing due to its excellent flexibility performance.
Stainless steel continuous oil pipe
Continuous tubing is a type of pipe made of low-carbon alloy steel, also known as flexible tubing due to its excellent flexibility performance.
Ocean umbilical cable
Continuous tubing is a type of pipe made of low-carbon alloy steel, also known as flexible tubing due to its excellent flexibility performance.
Prefabricated heat tracing pipeline
Continuous tubing is a type of pipe made of low-carbon alloy steel, also known as flexible tubing due to its excellent flexibility performance.
News Center
See more
The application of stainless steel coils
2023-12-16
Consensus reached at the 2024 stainless steel industry chain symposium - stainless steel demand will continue to grow in 2024
On the afternoon of January 23, the Stainless Steel Branch of the China Iron and Steel Industry Association held a symposium and exchange meeting on the 2024 stainless steel industry chain in Beijing. The attending representatives unanimously agreed that the demand for stainless steel will continue to grow in 2024.
At the meeting, Zhang Zhifang, Executive Chairman of the Stainless Steel Branch of the China Iron and Steel Industry Association, introduced the relevant development situation of the stainless steel industry in 2023 and the development direction in 2024. Representatives of stainless steel and upstream and downstream industry associations in the industry chain respectively introduced the operation situation of their respective industries in 2023, as well as the demand and application of stainless steel.
Su Changyong, Deputy Secretary General of China Iron and Steel Industry Association and Party Secretary and President of Metallurgical Industry Press, stated in his speech that there is still room for growth in stainless steel consumption. He believes that the current high export volume of stainless steel can still be maintained for a period of time. At the same time, he proposed that the high-quality development of the stainless steel industry should pay attention to issues such as overcapacity, raw material supply, stainless steel innovation, and changing the image of stainless steel.
2024-01-26
Xiangshui Defeng Metal Materials Co., Ltd. has successfully applied for a patent titled "A slitting longitudinal cutting mechanism for hot-rolled stainless steel coils"
On January 23, 2024, Xiangshui Defeng Metal Materials Co., Ltd. successfully applied for a patent titled "A slitting longitudinal cutting mechanism for hot-rolled stainless steel coils", with application publication number CN117428498A and application date of November 10, 2023.
The invention relates to the field of plate cutting technology, in particular providing a slitting longitudinal cutting mechanism for hot-rolled stainless steel coil plates, including a workbench, a cutting blade, a discharge plate set below the discharge side of the workbench, the discharge plate gradually tilts downwards towards the left-hand side of the workbench, and a vertical support frame is fixed on the top surface of the discharge plate, with a receiving mechanism installed at the top of the support frame, The discharge end of the workbench is equipped with a discharge plate located below the receiving mechanism, which utilizes the self weight generated by the steel plate falling on the receiving plate to deflect the inner end of the receiving plate downwards, thereby polishing the burrs on the two shear ends of the steel plate. When the steel plate cuts and discharges, it can self check whether there are burrs on its two shear ends, and achieve the goal of synchronous discharge and burr cleaning. When burrs appear on the steel plate, there is no need to stop the machine to inspect the cutting blade, and mass production will not affect normal production.
2024-01-26
Baowu Teye Aviation Research Technology Co., Ltd. has successfully applied for a patent titled "Preparation method of martensitic sulfur-containing free cutting stainless steel for aviation"
On January 23, 2024, Baowu Teye Aviation Research Technology Co., Ltd. successfully applied for a patent titled "Preparation method of martensitic sulfur-containing free cutting stainless steel for aviation", with application publication number CN117431454A and application date of October 26, 2023.
The invention discloses a preparation method for aviation grade martensitic sulfur-containing free cutting stainless steel, which includes adding industrial pure iron, nickel plate, low-carbon chromium iron, and the steel grade return material to an electric furnace for melting, adjusting the steel composition to control the composition, according to weight percentage: C: 0.22~0.25%, Si: 0.10~0.25%, Mn: 1.10~1.20%, P: 0.10~0.13%, Cr: 12.50~13.50%, Ni: 1.65~1.90%; Insert sulfur powder sealed with a thin tube into the steel liquid, stir evenly, then add BaAlSi alloy for final deoxidation, and then pour it out of the furnace into an electric slag billet; Perform electroslag remelting on the electroslag billet, using an electroslag remelting slag system that includes 30-40 wt% CaF2 powder, 25-35 wt% Al2O3 powder, 20-30 wt% SiO2 powder, 3-7 wt% MgO powder, and 3-7 wt% metallic manganese particles; After the electroslag remelting of the ingot, it is sent to the forging hot working furnace for heating, and then forged. After forging, it is sent to the annealing furnace for annealing heat treatment to obtain martensitic sulfur-containing free cutting stainless steel for aviation. This preparation method can effectively control the content of sulfur and manganese elements, and improve the comprehensive yield of Y25Cr13Ni2.
2024-01-26
Join us
The company adheres to a people-oriented approach, implements a talent utilization mechanism that maximizes the potential of each individual, strives to cultivate a competent and efficient talent team, and continuously improves the "salary based on job" policy“ The salary system is a good mechanism for promoting the education and attraction of individuals who are capable, efficient, and highly paid.
See more
Professional manufacturer of seamless stainless steel coils
Company Profile
development history
in production

Gongyang Baofeng Precision Clean Tube Co., Ltd. is a professional enterprise dedicated to the research and production of stainless steel and special alloy steel ultra long coil tubes. Jointly funded by Baofeng Steel Industry Group and Zhejiang Jingning Clean Steel Pipe Co., Ltd. The production plant covers an area of over 30000 square meters, with over 220 employees and a total investment of 150 million yuan. It has built four world-class stainless steel ultra long seamless coil dedicated production lines. The production process adopts: hot extrusion/side hole+cold rolling+cold drawing+bright vacuum solid solution heat treatment. The annual output of stainless steel seamless coil is 12000 tons, providing safe and reliable products for oil, natural gas, power, semiconductor, nuclear power, chemical industry, shipbuilding, new energy and other fields. The production and sales of coil tubes rank among the top in the country.

Product Center
The company has 22 years of professional production experience in stainless steel ultra long seamless coils, and through persistent research and development investment, our product quality continues to improve.
Stainless steel seamless coil
尺寸:1/8 (Ф3mm-Ф25mm);壁厚:0.020“-0.083”(0.5nm-3mm);材质:304/304L、321、316/316L、 904L、8825、2205.. international standard:ASTM A213 ASTM A312 ASTM A269ASTM A270
Application scope
Widely used in oil drilling, ship manufacturing, remote hydraulic control pipelines, wound heat exchangers, ultra pure gas pipelines, prefabricated heat tracing pipelines, pipeline heat tracing pipes, ship hydraulic instrument pipelines, marine umbilical cables, stainless steel coil heat exchangers, evaporators, condensers, coaxial sleeve heat exchangers, and so on
Ocean umbilical cable
Umbilical cable is an important component of marine engineering equipment, used to connect surface facilities and underwater oil production systems. Its main function is to provide electrical, hydraulic power, and chemical injection for underwater production systems
Stainless steel continuous oil pipe
Continuous oil pipe is a pipe standard made of low-carbon alloy steel, Due to its excellent flexibility performance, it is also known as flexibility Oil pipe.
Prefabricated heat tracing pipeline
Heat tracing tube is abbreviated as tracing tube. The heat tracing objects are flue gas, pressure pipes, regulating valves, process pipelines or process equipment The instrument and insulation box directly installed on the top, with a medium of low-pressure steam of 0.2~0.4MPa
News Center
Consensus reached at the 2024 stainless steel industry chain symposium - stainless steel demand will continue to grow in 2024
On the afternoon of January 23, the Stainless Steel Branch of the China Iron and Steel Industry Association held a symposium and exchange meeting on the 2024 stainless steel industry chain in Beijing. The attending representatives unanimously agreed that the demand for stainless steel will continue to grow in 2024.
At the meeting, Zhang Zhifang, Executive Chairman of the Stainless Steel Branch of the China Iron and Steel Industry Association, introduced the relevant development situation of the stainless steel industry in 2023 and the development direction in 2024. Representatives of stainless steel and upstream and downstream industry associations in the industry chain respectively introduced the operation situation of their respective industries in 2023, as well as the demand and application of stainless steel.
Su Changyong, Deputy Secretary General of China Iron and Steel Industry Association and Party Secretary and President of Metallurgical Industry Press, stated in his speech that there is still room for growth in stainless steel consumption. He believes that the current high export volume of stainless steel can still be maintained for a period of time. At the same time, he proposed that the high-quality development of the stainless steel industry should pay attention to issues such as overcapacity, raw material supply, stainless steel innovation, and changing the image of stainless steel.
2024-01-26
Xiangshui Defeng Metal Materials Co., Ltd. has successfully applied for a patent titled "A slitting longitudinal cutting mechanism for hot-rolled stainless steel coils"
On January 23, 2024, Xiangshui Defeng Metal Materials Co., Ltd. successfully applied for a patent titled "A slitting longitudinal cutting mechanism for hot-rolled stainless steel coils", with application publication number CN117428498A and application date of November 10, 2023.
The invention relates to the field of plate cutting technology, in particular providing a slitting longitudinal cutting mechanism for hot-rolled stainless steel coil plates, including a workbench, a cutting blade, a discharge plate set below the discharge side of the workbench, the discharge plate gradually tilts downwards towards the left-hand side of the workbench, and a vertical support frame is fixed on the top surface of the discharge plate, with a receiving mechanism installed at the top of the support frame, The discharge end of the workbench is equipped with a discharge plate located below the receiving mechanism, which utilizes the self weight generated by the steel plate falling on the receiving plate to deflect the inner end of the receiving plate downwards, thereby polishing the burrs on the two shear ends of the steel plate. When the steel plate cuts and discharges, it can self check whether there are burrs on its two shear ends, and achieve the goal of synchronous discharge and burr cleaning. When burrs appear on the steel plate, there is no need to stop the machine to inspect the cutting blade, and mass production will not affect normal production.
2024-01-26
Baowu Teye Aviation Research Technology Co., Ltd. has successfully applied for a patent titled "Preparation method of martensitic sulfur-containing free cutting stainless steel for aviation"
On January 23, 2024, Baowu Teye Aviation Research Technology Co., Ltd. successfully applied for a patent titled "Preparation method of martensitic sulfur-containing free cutting stainless steel for aviation", with application publication number CN117431454A and application date of October 26, 2023.
The invention discloses a preparation method for aviation grade martensitic sulfur-containing free cutting stainless steel, which includes adding industrial pure iron, nickel plate, low-carbon chromium iron, and the steel grade return material to an electric furnace for melting, adjusting the steel composition to control the composition, according to weight percentage: C: 0.22~0.25%, Si: 0.10~0.25%, Mn: 1.10~1.20%, P: 0.10~0.13%, Cr: 12.50~13.50%, Ni: 1.65~1.90%; Insert sulfur powder sealed with a thin tube into the steel liquid, stir evenly, then add BaAlSi alloy for final deoxidation, and then pour it out of the furnace into an electric slag billet; Perform electroslag remelting on the electroslag billet, using an electroslag remelting slag system that includes 30-40 wt% CaF2 powder, 25-35 wt% Al2O3 powder, 20-30 wt% SiO2 powder, 3-7 wt% MgO powder, and 3-7 wt% metallic manganese particles; After the electroslag remelting of the ingot, it is sent to the forging hot working furnace for heating, and then forged. After forging, it is sent to the annealing furnace for annealing heat treatment to obtain martensitic sulfur-containing free cutting stainless steel for aviation. This preparation method can effectively control the content of sulfur and manganese elements, and improve the comprehensive yield of Y25Cr13Ni2.
2024-01-26
Join us
Putting people first, we strive to cultivate a talent team that is efficient and efficient, and continuously improve the "salary based on job" system by implementing a personnel mechanism that maximizes the use of talents.
See more