steel pipe fitting, carbon steel pipe, seamless steel pipe

Threeway Steel co.,ltd is a world-class SSAW steel pipe provider, one of the largest subsidiary in Shinestar Holdings Group Co.,ltd. As the companys largest export base, we are committed to provide professional one-stop procurement service for customers with excellent quality, competitive price, convenient transportation and timely delivery. At present, customers have been all over world.

Our Products

Threeway is in china professional steel products stockiest manufacturer and supplier. We can produce welded pipe, seamless steel pipe,
hollow section tube, oil tube & casing, according to your requirements

Seamless Steel pipe

Seamless Carbon Steel Pipe:

Outside Diameter: 13.72mm-914.4mm

Wall Thickness: 1.25mm-50mm

Length:5.8/6/11.8/12m

Seamless Stainless Steel Pipe:

Outside Diameter: 18.0mm-610mm

Wall Thickness: 1.6mm-40mm

Length:5.8/6/11.8/12m

OCTG Pipe

API Casing:

Outside Diameter:114.3mm-508mm

Wall Thinckness: 5.21mm-22.22mm

Length:R1/R2/R3

Drill Pipe:

Outside Diameter: 60.32mm-168.28mm
Wall Thickness:7.11mm-9.19mm

Length:R1/R2/R3

Welded Steel Pipe

ERW Steel Pipe:

Outside Diameter: 21.3mm-660mm

Wall Thickness: 1mm-20mm

Length: 5.8/6/11.8/12m

LSAW Steel Pipe:

Outside Diameter: 406mm-1626mm

Wall Thickness: 6.0mm-60mm

Length: 5.8/6/11.8/12m

Steel Pipe fittings

Carbon Steel Fittings and flanges:

Pipe Elbow, Pipe Bend, Pipe Tee, Pipe Reducer，Pipe Cap, Pipe Flange..etc

Stainless Steel Fittings and flanges:

Pipe Elbow, Pipe Bend, Pipe Tee, Pipe Reducer，Pipe Cap, Pipe Flange

WE HAVE EXPERIENCE

We are expert in supplying better products with cost effective solutions and we are experienced in Oil & Gas, Fertilizers, Petrochemical, Refinery and Power project. Our steel products are with superior quality and ensure high reputation among our customers. Hope this will be a good start of our long term cooperation.

Project Experience

Heat Exchanger Condensers
Geothermal Exploration

Oil & Gas Industries
Gas Transmission in Bangladesh

Power Plants
Myingyan 225 MW Combined Cycle Power Plant

Sugar Industries
Industrial exhaust ducts

Fire Safety
OLD MANDURAH TRAFFIC BRIDGE REPLACEMENT in WA

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Industry News

Company News

NEWS CENTER

Key Factors Determining The Quality of Spiral Welded Steel Pipes
07-22

Spiral welded steel pipes are essential for oil and gas, water transmission, construction, piling, and infrastructure projects. Their quality depends on multiple factors—from raw material selection to final inspection.Key Quality Determinants:Steel coil quality: Consistent chemical composition and m

Applications And Advantages of Hot-dip Galvanized Square And Rectangular Tubes
07-21

Hot-dip galvanized square and rectangular tubes combine structural steel strength with superior zinc-based corrosion protection. The immersion process creates a metallurgical bond that shields all surfaces—including edges and corners—from moisture, oxygen, and harsh elements, outperforming ordinary

Common Defects in The Welded Area of spiral Welded Steel Pipes
07-20

Spiral welded steel pipes are vital for oil, gas, and water infrastructure. However, the welded seam is critical; defects like porosity, cracks, or lack of fusion can severely compromise structural integrity and safety under high pressure.To ensure reliability, modern manufacturing employs strict qu

Features And Functions of Thick-walled Seamless Square Tubes
07-17

Thick-walled seamless square tubes are high-strength hollow steel sections with a square cross-section and increased wall thickness. Manufactured without a welded seam, they offer superior structural uniformity, mechanical performance, and reliability for demanding applications in construction, mach

Oil Well Casing Installation Methods And Steps
07-16

Oil well casing is a critical component in drilling operations, providing structural support, isolating geological formations, and ensuring well integrity. Proper installation prevents wellbore collapse and fluid contamination, creating a safe pathway for oil and gas extraction.The installation proc

Causes And Prevention Methods of Cracks in Seamless Steel Pipes During Production And Use
07-15

Seamless steel pipes offer high strength, excellent pressure resistance, and a uniform structure, making them ideal for oil & gas, power generation, chemical processing, and high-pressure equipment. However, cracks remain a common quality concern that can compromise performance and safety.Cracks may

Our Clients

Project Experience

Key Factors Determining The Quality of Spiral Welded Steel Pipes
07-22

Applications And Advantages of Hot-dip Galvanized Square And Rectangular Tubes
07-21

Common Defects in The Welded Area of spiral Welded Steel Pipes
07-20

Features And Functions of Thick-walled Seamless Square Tubes
07-17

Oil Well Casing Installation Methods And Steps
07-16

Causes And Prevention Methods of Cracks in Seamless Steel Pipes During Production And Use
07-15

HOT PRODUCT

QUICK LINKS

CONTACT US

Project Experience

Key Factors Determining The Quality of Spiral Welded Steel Pipes 07-22

Applications And Advantages of Hot-dip Galvanized Square And Rectangular Tubes 07-21

Common Defects in The Welded Area of ​​spiral Welded Steel Pipes 07-20

Features And Functions of Thick-walled Seamless Square Tubes 07-17

Oil Well Casing Installation Methods And Steps 07-16

Causes And Prevention Methods of Cracks in Seamless Steel Pipes During Production And Use 07-15

HOT PRODUCT

QUICK LINKS

CONTACT US

Key Factors Determining The Quality of Spiral Welded Steel Pipes
07-22

Applications And Advantages of Hot-dip Galvanized Square And Rectangular Tubes
07-21

Common Defects in The Welded Area of spiral Welded Steel Pipes
07-20

Features And Functions of Thick-walled Seamless Square Tubes
07-17

Oil Well Casing Installation Methods And Steps
07-16

Causes And Prevention Methods of Cracks in Seamless Steel Pipes During Production And Use
07-15