Over 30 years of experience
About us
Founded in 1989

Union Steel Industry Co., Ltd as member of United Steel Industry Group, specialized in steel pipe and pipe fittings designing, manufacturing, stocking and exporting in China. As one of the leading manufacturer of steel pipe products in China, Union Steel Industry Co., Ltd are committed to providing one-stop service to customers around the world.


Union Steel Industry Co., Ltd has leading technology of steel pipe production and research at home and abroad, advanced and complete testing facilities. Adhering to our principle of“quality first, win-win cooperation”, we are confident to supply customers with high quality products at very competitive prices.

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Welded Steel Pipe,Carbon Steel Pipe,Stainless Steel Pipe,Coated Steel Pipe,Oilfield Tubular Goods,Pipe Fittings
  • Welded Steel Pipe,Carbon Steel Pipe,Stainless Steel Pipe,Coated Steel Pipe,Oilfield Tubular Goods,Pipe Fittings

    5000+

    Employees
  • Welded Steel Pipe,Carbon Steel Pipe,Stainless Steel Pipe,Coated Steel Pipe,Oilfield Tubular Goods,Pipe Fittings

    3500+

    Equipment
  • Welded Steel Pipe,Carbon Steel Pipe,Stainless Steel Pipe,Coated Steel Pipe,Oilfield Tubular Goods,Pipe Fittings

    20+

    Production Lines
  • Welded Steel Pipe,Carbon Steel Pipe,Stainless Steel Pipe,Coated Steel Pipe,Oilfield Tubular Goods,Pipe Fittings

    450+

    Safety Tools

PRODUCT CATEGORY

Product Category

Carbon Steel Pipe

Carbon steel pipe is made from an alloy of iron and carbon. It’s a strong, durable material resistant to corrosion and oxidation. Because of its strength and ability to withstand stress, carbon steel pipe is used in a variety of heavy-duty industries like infrastructure, ships, distillers, chemical fertilizer equipment, and liquids, gases, solids transportation. Union Steel can offer SAWL/LSAW Steel Pipe, SSAH/SSAWSteel Pipe, EFW/ERW Steel Pipe, SMLS Steel Pipe and Hollow Section in standard size or as customer’s requirement.

carbon steel pipe,erw steel pipe,lasw steel pipe,ssaw steel pipe,smls steel pipe,hollow section

Product Category

Oilfield Tubular Goods

Oilfield tubular goods of Union Steel is a collection of seamless rolled products consisting of Tubing and Casing, Slotted Pipe, Drill Pipe and Drill Collar, Pup Joint and Coupling, which are useful in the oil and gas production activities. These OTCG products are manufactured according to the specifications set by API. OCTG can be either seamless or welded and are available in different sizes and lengths.

oilfield tubular goods

Product Category

Coated Steel Pipe

Coated steel pipe means the pipe that is by the processing after the corrosion, which can effectively prevent or slow the steel pipe occurs in the course of transport and chemical or electrochemical reaction corrosion phenomena. Coated steel pipe can effectively prevent or slow down the corrosion of steel pipes to extend service life and reduce operating costs pipe. Union Steel is a supplier that can offer Galvanized Steel Pipe, FBE Coated Pipe, Epoxy Coated Pipe, 3LPE/3PE Coated Pipe and Concrete Coated Pipe.


coated steel pipe,galvanized steel pipe,fbe coated pipe,epoxy coated pipe,3lpe coated pipe,concrete coated pipe

Product Category

Stainless Steel Pipe

Stainless steel pipe is used for transporting liquids and gasses in a wide range of industries including mining, oil, natural gas, automotive, and aviation. Union Steel can provide Stainless Seamless Steel Pipe, Stainless Welded Steel Pipe, Stainless Steel Screen Pipe and Stainless Hollow Section in standard sizes, or you can have it custom cut to your specifications.



stainless steel pipe,stainless seamless steel pipe,stainless welded steel pipe,stainless steel screen pipe,stainless hollow section

Product Category

Pipe Fittings

Pipe Fittings are defined as the piping components that help in pipe routing for directional changes, size changes, and branch connections. Union Steel is one of the top supplier of Flange, Elbow / Reducer / Tee / Cap / Bend and Valves, which are widely used in both the piping and plumbing industries.


pipe fittings,plumbing fittings,flange,elbow,reducer,tee,cap,bend,valves

Product Category

Value Added Products

Value added product has been enhanced with additional qualities that make it worth a higher price than the raw materials used to make it. It may be made more convenient, more attractive, more palatable, or easier to use than its raw ingredients. Union Steel can offer you Finned Tube, Pin Tube, Screen Pipe, Piling Pipe and Steel Sheet Pile.
value added products,finned tube,pin tube,screen pipe,piling pipe,steel sheet pile

Product Category

Carbon Steel Pipe

Carbon steel pipe is made from an alloy of iron and carbon. It’s a strong, durable material resistant to corrosion and oxidation. Because of its strength and ability to withstand stress, carbon steel pipe is used in a variety of heavy-duty industries like infrastructure, ships, distillers, chemical fertilizer equipment, and liquids, gases, solids transportation. Union Steel can offer SAWL/LSAW Steel Pipe, SSAH/SSAWSteel Pipe, EFW/ERW Steel Pipe, SMLS Steel Pipe and Hollow Section in standard size or as customer’s requirement.

carbon steel pipe,erw steel pipe,lasw steel pipe,ssaw steel pipe,smls steel pipe,hollow section

Product Category

Oilfield Tubular Goods

Oilfield tubular goods of Union Steel is a collection of seamless rolled products consisting of Tubing and Casing, Slotted Pipe, Drill Pipe and Drill Collar, Pup Joint and Coupling, which are useful in the oil and gas production activities. These OTCG products are manufactured according to the specifications set by API. OCTG can be either seamless or welded and are available in different sizes and lengths.

oilfield tubular goods

Product Category

Coated Steel Pipe

Coated steel pipe means the pipe that is by the processing after the corrosion, which can effectively prevent or slow the steel pipe occurs in the course of transport and chemical or electrochemical reaction corrosion phenomena. Coated steel pipe can effectively prevent or slow down the corrosion of steel pipes to extend service life and reduce operating costs pipe. Union Steel is a supplier that can offer Galvanized Steel Pipe, FBE Coated Pipe, Epoxy Coated Pipe, 3LPE/3PE Coated Pipe and Concrete Coated Pipe.


coated steel pipe,galvanized steel pipe,fbe coated pipe,epoxy coated pipe,3lpe coated pipe,concrete coated pipe

Product Category

Stainless Steel Pipe

Stainless steel pipe is used for transporting liquids and gasses in a wide range of industries including mining, oil, natural gas, automotive, and aviation. Union Steel can provide Stainless Seamless Steel Pipe, Stainless Welded Steel Pipe, Stainless Steel Screen Pipe and Stainless Hollow Section in standard sizes, or you can have it custom cut to your specifications.



stainless steel pipe,stainless seamless steel pipe,stainless welded steel pipe,stainless steel screen pipe,stainless hollow section

Product Category

Pipe Fittings

Pipe Fittings are defined as the piping components that help in pipe routing for directional changes, size changes, and branch connections. Union Steel is one of the top supplier of Flange, Elbow / Reducer / Tee / Cap / Bend and Valves, which are widely used in both the piping and plumbing industries.


pipe fittings,plumbing fittings,flange,elbow,reducer,tee,cap,bend,valves

Product Category

Value Added Products

Value added product has been enhanced with additional qualities that make it worth a higher price than the raw materials used to make it. It may be made more convenient, more attractive, more palatable, or easier to use than its raw ingredients. Union Steel can offer you Finned Tube, Pin Tube, Screen Pipe, Piling Pipe and Steel Sheet Pile.
value added products,finned tube,pin tube,screen pipe,piling pipe,steel sheet pile

Our workshop

PROJECTS

Union Steel is committed to providing one-stop service for steel pipe products to customers around the world. Many years of large scale project experience in various fields.

LATEST NEWS

Duplex Stainless Steel vs Austenitic Stainless Steel

2023-12-08

duplex stainless steel vs austenitic stainless steel, duplex vs austenitic stainless steel, difference between austenitic and duplex stainless steel
  • 12-08

    2023

    Duplex Stainless Steel Grades

    Duplex stainless steel(DSS) has a higher chromium content of 20–28%; higher molybdenum up to 5%, lower nickel up to 9%, and 0.05–0.50% nitrogen in compare with austenitic stainless steel. Duplex stainless steel material is an ideal selection in the aspect of resistance against pitting corrosion. The resistance against pitting corrosion is characterized by the pitting resistance equivalence number, or PREN Number defined as follows:
  • 11-30

    2023

    Anti-corrosion Technology of Seamless Steel Pipe

    The anti-corrosion technology of seamless steel pipes is crucial to protect the pipes from corrosion and extend their service life, especially when they are exposed to corrosive environments. There are several common anti-corrosion technologies used for seamless steel pipes.
  • 11-30

    2023

    CS Seamless Pipe Cold Treatment Process

    In the production of carbon steel (CS) seamless pipes, the cold treatment process is usually used to improve the strength and hardness of the material. The following is the general CS seamless pipe cold treatment process.