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

How To Choose The Material for Welded Steel Pipes? Performance Comparison of Q195, Q215A, And Q235B.
10-13

Material selection is critical for welded steel pipes, as steel grade directly affects mechanical strength, weldability, formability, cost, and service life. Q195, Q215A, and Q235B are common Chinese carbon structural steel grades with different properties. Q195 suits light-duty, non-critical applic

Differences in mechanical properties between spiral welded pipe and straight seam welded pipe: Why spiral welded pipe is often used for large diameter pipes.
10-08

Spiral welded pipe (SSAW) and straight seam welded pipe (LSAW/ERW) are widely used in oil and gas transportation, water supply, piling, and infrastructure projects. SSAW pipes are formed from steel coils with a helical weld, offering flexible diameter production and cost advantages for large-diamete

Interpretation of ASTM A500 Standard: Technical Requirements And Material Selection for Seamless Steel Tubes for Structural Use
09-29

ASTM A500 is a leading specification for cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes, widely used in buildings, bridges, warehouses, towers, and equipment supports. It defines chemical composition, mechanical properties, dimensions, toleran

Mechanical Property Requirements for Structural Steel Pipes: Interpretation of Tensile And Flattening Tests
09-24

Structural steel pipes are critical for building frames, columns, and industrial structures, carrying significant axial, bending, and dynamic loads. Their safety relies on key mechanical properties: yield strength, tensile strength, elongation, and toughness. The tensile test is essential for verify

Applications of Cold-drawn Precision Structural Tubes: The Value of Dimensional Accuracy And Surface Finish
09-23

Cold-drawn precision structural tubes are high-tolerance steel tubes manufactured through a controlled cold-drawing process, achieving exceptional dimensional accuracy, superior surface finish, and consistent mechanical properties. Unlike standard structural tubes, they offer tighter control over ou

How To Choose The Material for Structural Steel Pipes? Performance Comparison of 20#, 45#, Q345B, And Q355B.
09-22

Correct material selection is critical for structural steel pipes, as grades like 20#, 45#, Q345B, and Q355B offer distinct properties. 20# offers excellent weldability and ductility, while 45# delivers higher strength but requires tighter welding control. Low-alloy grades Q345B and Q355B offer supe

Our Clients

Project Experience

How To Choose The Material for Welded Steel Pipes? Performance Comparison of Q195, Q215A, And Q235B.
10-13

Differences in mechanical properties between spiral welded pipe and straight seam welded pipe: Why spiral welded pipe is often used for large diameter pipes.
10-08

Interpretation of ASTM A500 Standard: Technical Requirements And Material Selection for Seamless Steel Tubes for Structural Use
09-29

Mechanical Property Requirements for Structural Steel Pipes: Interpretation of Tensile And Flattening Tests
09-24

Applications of Cold-drawn Precision Structural Tubes: The Value of Dimensional Accuracy And Surface Finish
09-23

How To Choose The Material for Structural Steel Pipes? Performance Comparison of 20#, 45#, Q345B, And Q355B.
09-22

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Project Experience

How To Choose The Material for Welded Steel Pipes? Performance Comparison of Q195, Q215A, And Q235B. 10-13

Differences in mechanical properties between spiral welded pipe and straight seam welded pipe: Why spiral welded pipe is often used for large diameter pipes. 10-08

Interpretation of ASTM A500 Standard: Technical Requirements And Material Selection for Seamless Steel Tubes for Structural Use 09-29

Mechanical Property Requirements for Structural Steel Pipes: Interpretation of Tensile And Flattening Tests 09-24

Applications of Cold-drawn Precision Structural Tubes: The Value of Dimensional Accuracy And Surface Finish 09-23

How To Choose The Material for Structural Steel Pipes? Performance Comparison of 20#, 45#, Q345B, And Q355B. 09-22

HOT PRODUCT

QUICK LINKS

CONTACT US

How To Choose The Material for Welded Steel Pipes? Performance Comparison of Q195, Q215A, And Q235B.
10-13

Differences in mechanical properties between spiral welded pipe and straight seam welded pipe: Why spiral welded pipe is often used for large diameter pipes.
10-08

Interpretation of ASTM A500 Standard: Technical Requirements And Material Selection for Seamless Steel Tubes for Structural Use
09-29

Mechanical Property Requirements for Structural Steel Pipes: Interpretation of Tensile And Flattening Tests
09-24

Applications of Cold-drawn Precision Structural Tubes: The Value of Dimensional Accuracy And Surface Finish
09-23

How To Choose The Material for Structural Steel Pipes? Performance Comparison of 20#, 45#, Q345B, And Q355B.
09-22