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


  • 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


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


    Safety Tools


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


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.


Fire Water Supply Pipe Material Selection (Galvanized Steel Pipe, Ductile Iron Pipe, Seamless Steel Pipe, Etc.)


Galvanized Steel Pipe, Ductile Iron Pipe, Seamless Steel Pipe
  • 02-29


    Ways And Means To Prevent Galvanized Pipe Pressure Groove Fracture

    Hot-dip galvanized steel pipe is a kind of with hot-rolled or cold-rolled galvanized steel strip or galvanized coil as a billet by cold bending processing forming and then by high-frequency welding made of square cross-section shape dimensions of the hollow square cross-section steel pipe, or will be made beforehand cold-formed hollow steel pipe and then hot dip galvanized processing of galvanized square tube.
  • 02-28


    Spiral Steel Pipe Manufacturer For Piling Project

    Spiral steel pipe production process for piling works: is a strip steel coil, through the normal temperature extrusion molding, using automatic double-wire submerged arc welding process, welding made of spiral welded pipe. Spiral steel pipe features: spiral steel pipe strength is generally higher than the LSAW steel pipe, you can use narrower materials to produce large diameter spiral steel pipe, the same width of the strip can also produce different pipe diameter spiral steel pipe. Spiral steel pipe has a high utilization rate and is widely used. Today we explain the following spiral steel pipe for piling project use.
  • 02-28


    Hot-Dip Galvanized Spiral Welded Steel Pipe

    Hot-dip galvanized spiral welded steel pipe, as a common steel product, is widely used in construction, energy, petrochemical and other fields.

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