Professional Steel Pipe Integration Supporting Suppliers Since 1996

Centerway Steel Co., Ltd is a subsidiary of Allianz Steel Group that specializes in the production of steel pipes and pipe fittings, steel inventory, domestic and foreign sales. We are committed to providing one-stop service for steel pipe products to customers around the world.

Centerway has leading technology of steel pipe production and research  at home and abroad, advanced and complete testing facilities .We strictly in accordance with the ISO 9001 quality management system for on-site management, has obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc. Our products have been inspected and approved by SGS, BV, MOODY, TUBOSCOPE and other international authoritative third-party organizations

Oilfield Tubulars (OCTG)

Tubing pipe size:

OD:  1.050inch - 4-1/2 inch

Casing pipe size:

OD:  4-1/2inch - 20inch

Drill Pipe

 API 5DP, 2-3/8’’~6-5/8’’, E75/X95/G105/S135.


 API 5CT, 1.9’’-20’’, K55/N80/L80/P110, STC/LTC /BTC

Standard & Material:

API 5CT H40, J55, K55, M65, L80-1, N80-1, N80Q, C90, P110, Q125

Tubing pipe end:

P—plain-end, N—non-upset, with threaded and coupled, U—external-upset, with threaded and coupled, I—whole joint or other special threads

Casing pipe end:

P—plain-end, S—short round thread, L—long round thread, B—buttress thread or other special threads

Drill Pipe:

API SPEC 5DP E75, X95, G105, S135

Pipe Length:

R1, R2, R3 or based on client’s requirements

Additional Products:

Pup joint, Coupling and other OCTG related products

Our advantage:

Rich experienced: Marketing /production/after-sales team, our partners :PDVSA, NIOC, SINOPEC, CNPC.etc

Flexible payment term: T/T. L/C at sight.

Quantity Control: 30,000 tons stockist each year,with 3,0000 square meters warehouse,Strict quality system: Complemented system including QC, logistics and documentation,Authoritative organizations.

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Seamless Steel Tube

Types:Seamless steel tube, Line pipe, Boiler tube, Pressure tube, Fluid Transportation Pipe, Machining Tubes, Heat exchanger and Condenser tube etc

Hot Rolled Seamless Pipe: Size:OD:Φ32-Φ356mm; Thickness:3-50mm; Max Length:50m

Hot Expanded Seamless Pipe: Size:OD:Φ356-Φ1200mm; Thickness:8-50mm

Cold Rolled Seamless Pipe: Size:OD:Φ20-Φ273mm; Thickness:1-32mm

Cold Drawn Seamless Pipe: Size:OD:Φ20-Φ273mm; Thickness:1-26mm; Max Length:25m

Steel Material ASTM A178/179/192/210, A106, EN10216-1/2, DIN17175/1629, JIS G3454, etc.

Steel Grade:A179,A192,GR.A/B/C, P235TR1/2, P235GH, ST45.8, ST37,STB340, STB440,15MoG, 15CrMoG, 16Mn,13CrMo4-5, etc.                  


* The 3rd Party inspection certificate :TUV 3.2, SGS 3.2 ect.

*Competitive p rice: offer the most competitive p rice  in the steel industry, and will try our best  to meet your target price;

*Flexible payment terms: T/T, L/C at sight, 30days , 60days and so on;

Welcome to receive your inquiry, at least, you can have a try to see if our quality and service are better than your firm supplier.

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Stainless Steel Pipe

Supplying Stainless Steel Pipe(SS) and various kinds of steel pipe.

Our products are manufactured using high quality materials. Customers can avail this range of products from us in different sizes, lengths, and specifications.

To make sure best quality product delivery, we check our offered products on various quality parameters under the direction of our skillful quality inspectors.

· ASTM:   A312 TP 304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L etc

· Others:   Duplex, Super Duplex, Monel, Nickel, Inconel, Hastelloy

· Types:   Round, Square, Rectangular

· Size:   Upto 48” NB. (Seamless & Welded)

· Wall thickness:   Sch. 5S to Sch. XXS

Why us:  

· Competitive price: we would try our best to meet your target price;

· Flexible Pay Mode Terms:  L/C (Letter of Credit), T/T (Bank Transfer).

· Short Delivery Time:   As per the client's schedule.

· Perfect Packaging Details:   Durable and safe packaging.

· Prompt feedback: all emails and questions would be replied within 2 working hours;

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Alloy Steel Pipe

Alloy Seamless Steel Pipe

Size:Outside Diameter: 1/8'' ~ 26'';Wall Thickness: SCH 30, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD; Length: Single Random, Double Random, Cut Length max to 23m

Alloy Welded Steel Pipe

Size:Outside Diameter: OD:6-720MM,WT:0.5-120MM, Length: Single Random, Double Random, Cut Length max to 23m

Standard & Grade:ASTM A691, ASTM A530/A530M, ASTM A335 (ASME SA335), ASTM A387, ASTM A213/213M etc, DIN17175-79, JIS3467-88,GB5310-95

Ends :Plain End, Beveled End, Thread End

Usage:In Petroleum, Aerospace, Chemical, Power, Boilers, Military Industry

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Welded Steel Pipe&Tube




Why Choose Us

China's largest welded pipe manufacturer and include 5 factories.

We specialize in steel pipes/tubes such as ERW, LSAW, SSAW pipe

More than 20 years experience in this field, since 1996.

Production capacity over 2 million tons per year.

The export market covers more than 100 major countries and regions around the globe.

Stock more than 5000 tons per month in different materials and sizes.

Involved in more than 100 projects each year, covering the oil and gas pipeline, drilling, offshore, energy, construction industries.

Quality assurance: SGS, DNV, BV, TUV, API, ISO 9001:2000.

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Coating Steel Pipe

Dealing with Coating Steel pipes (SSAW/LSAW/ERW/SMLS) service, stockist and logistics, with ASTM, JIS, DIN, EN, API, BS AS/NZ standards, supplying PEMEX,  PDVSA, etc

Bare pipe





Production Range:

WT: 3mm - 25mm

WT: max 50mm

OD: 1/8"-24"       
WT: max 26.5mm

OD: 1/8"-36"        
WT: 1.25mm - 50mm


· Random Length   /   Fixed Length   /   SRL    /   DRL


Mechanical Tubing
Liquid Transport Steel Pipe
General structure, mechanical structure
Transport liquid, gas, oil


1.Chemical Component Analysis      2.Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation)
3.Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc)
4.Exterior Size Inspection   5.Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector)
6.Hydrostatic Test

Coating Type:

Fusion bond Epoxy Coating/ Coal Tar Epoxy /3PE /2PE/FBE/2FBE/3PP Varnish Coating
Bitumen Coating  / Black Oil Coating,Cement coated as per customer's requirement

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Pipe Fittings

Size Range:

Flange:1/2” - 120” ( DN 15 - DN 3000),Rating: 150, 300, 400, 600, 900, 1500, 2500;

Elbow:Size Range: 1/2” - 24” ( DN 21.3 - DN 610) for Seamless;26” - 96” ( DN 660 - DN 2438.4) for Welded.   

Reducer:Size Range: 1/2″ to 24″

Tee:Size Range: 1/2” - 24” ( DN 21.3 - DN 610) for Seamless;26” - 72” ( DN 660 - DN 1828.8) for Welded.           

Material: Carbon Steel ASTM A234 WPB,Alloy Steel ASTM A234 WP1, WP5, WP9, WP11, WP22,Stainless Steel ASTM A403 304/316

Type: Seamless / Welded

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Product Value-Added Service

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Own Production Lines With Different Product, Factory Direct Sales, Wholesales Price
We have our R&D platform.  Centerway Steel build Different product lines in each factory, Including 3 sets of hot-rolled production lines,10 cold rolling production lines, 4 oil casing production lines,API 5DP drill pipe production line,HFW and ERW welded pipe production lines, JCOE and HME production lines,8 spiral steel pipe production lines and 2 anti-corrosion and heat preservation production lines,stainless seamless&welded pipe production lines etc,these lines we can provide steel pipe cover different size,standard, material, length etc. In the R&D department, we enter into a strict quality control standard in each manufacturing process. Such as production, packing, transportation, etc. To ensure reliable product quality. To better serve the welded steel pipe global market. Meanwhile, to achieve high product quality. 

Latest News

lsaw pipe,stainless seamless pipe,api casing pipe

What's is the major difference between black steel pipe and ERW steel pipe?

ERW steel pipe are electric resistance welded while black steel pipe is forged. ERW is made of very fine hard steel, while black pipe is made of malleable steel.
  • what are the defects in pipe manufacturing

    From the pipe billet to the steel pipe generally requires two heating products, namely the pre-heating and rolling tube perforated base tube is heated in a given path before; production of cold-rolled (pull) pipe requires the use of intermediate annealing to remove residual stress; For some steel special requirements, in order to improve the mechanical properties of steel pipe and improving organizational and process performance, but also its heat treatment. Steel heating tube defects uneven heating, oxidation, decarbonization, heating cracks, overheating, over-burning.
  • Welding stress

    Welding stress, the stress is produced due to the welding and welded components. Changes in the shape and size of the weldment and soldering thermal stress generated during the welding process caused by weldment. Uneven temperature field of welding process and caused by its local plastic deformation and volume of different organizations is the root cause of the welding stress and deformation.
  • Using carbon equivalent value evaluation of steel weldability

    Weldability refers to material welded construction under limited conditions into components according to the design requirements and meet the requirements of pre-service capabilities. By welding materials, welding methods, component type and requirements affecting the four factors.


Our partners are throughout southeast Asia, the Middle East, Europe, Africa, South America, Oceania,and more than 80 countries and regions. We also provide many steel pipe products and services to the worlds top 500 petroleum and gas 





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НЕФТЕГАЗ 2024 Москва Россия Приглашение

NEFTEGAZ 2024 Moscow Russia Invitation


CENTERWAY STEEL Номер стенда: 21F74


Время проведения выставки: 15 апреля ~ 18 апреля

Expo time: 15th April ~ 18th April