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

What Are The Differences between Line Pipe, Casing, And Tubing? OCTG Product Category Functional Differentiation
11-03

Steel pipes are essential in the oil and gas industry, primarily categorized into line pipe, casing, and tubing. Line pipes (API 5L) transport fluids like oil and gas across long distances and are available in grades like X42 to X70. Casing and tubing fall under OCTG (API 5CT) but serve distinct wel

A Comprehensive Guide To Line Steel Pipes: Definition, Function, And Positioning in Piping Systems
11-02

Line steel pipes are essential for transporting oil, natural gas, water, and industrial fluids across pipeline networks. Manufactured primarily from carbon steel in seamless or welded forms, they must meet strict mechanical and safety requirements. API 5L is the global standard, covering grades from

Differences between T-series And P-series Alloy Steel Pipes: Comparison And Non-interchangeability of ASTM A213 And A335 Grades.
10-30

ASTM A213 T-series and ASTM A335 P-series alloy steel products are widely used in power generation, petrochemical, and refinery applications, but they are not interchangeable. ASTM A213 covers seamless ferritic and austenitic alloy-steel tubes for boilers, superheaters, and heat exchangers, includin

Application of Alloy Steel Pipes in Power Plant Boilers: Selection of Superheaters, Reheaters And Main Steam Pipelines
10-29

Alloy steel pipes are essential for power plant boilers and high-temperature steam systems, where ordinary carbon steel may lack sufficient creep strength and oxidation resistance. Alloying elements such as chromium, molybdenum, and vanadium improve high-temperature strength, creep resistance, and l

A Comprehensive Overview of Commonly Used Standards for Alloy Steel Pipes: ASTM A335, A213, And GB 5310 – How Do They Correspond?
10-28

Alloy steel pipes are widely used in power plants, boiler systems, petrochemical facilities, and refinines where high temperature and pressure resistance are required. Selecting the correct standard is essential for safety, compliance, and long-term performance. This guide compares three commonly re

What Are The Differences between Alloy Steel Pipes And Stainless Steel Pipes?
10-27

Alloy steel pipes and stainless steel pipes serve different industrial needs despite both containing alloying elements. The main difference lies in composition and performance priorities: alloy steel pipes emphasize strength, hardenability, and high-temperature pressure resistance, with grades like

Our Clients

Project Experience

What Are The Differences between Line Pipe, Casing, And Tubing? OCTG Product Category Functional Differentiation
11-03

A Comprehensive Guide To Line Steel Pipes: Definition, Function, And Positioning in Piping Systems
11-02

Differences between T-series And P-series Alloy Steel Pipes: Comparison And Non-interchangeability of ASTM A213 And A335 Grades.
10-30

Application of Alloy Steel Pipes in Power Plant Boilers: Selection of Superheaters, Reheaters And Main Steam Pipelines
10-29

A Comprehensive Overview of Commonly Used Standards for Alloy Steel Pipes: ASTM A335, A213, And GB 5310 – How Do They Correspond?
10-28

What Are The Differences between Alloy Steel Pipes And Stainless Steel Pipes?
10-27

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Project Experience

What Are The Differences between Line Pipe, Casing, And Tubing? OCTG Product Category Functional Differentiation 11-03

A Comprehensive Guide To Line Steel Pipes: Definition, Function, And Positioning in Piping Systems 11-02

Differences between T-series And P-series Alloy Steel Pipes: Comparison And Non-interchangeability of ASTM A213 And A335 Grades. 10-30

Application of Alloy Steel Pipes in Power Plant Boilers: Selection of Superheaters, Reheaters And Main Steam Pipelines 10-29

A Comprehensive Overview of Commonly Used Standards for Alloy Steel Pipes: ASTM A335, A213, And GB 5310 – How Do They Correspond? 10-28

What Are The Differences between Alloy Steel Pipes And Stainless Steel Pipes? 10-27

HOT PRODUCT

QUICK LINKS

CONTACT US

What Are The Differences between Line Pipe, Casing, And Tubing? OCTG Product Category Functional Differentiation
11-03

A Comprehensive Guide To Line Steel Pipes: Definition, Function, And Positioning in Piping Systems
11-02

Differences between T-series And P-series Alloy Steel Pipes: Comparison And Non-interchangeability of ASTM A213 And A335 Grades.
10-30

Application of Alloy Steel Pipes in Power Plant Boilers: Selection of Superheaters, Reheaters And Main Steam Pipelines
10-29

A Comprehensive Overview of Commonly Used Standards for Alloy Steel Pipes: ASTM A335, A213, And GB 5310 – How Do They Correspond?
10-28

What Are The Differences between Alloy Steel Pipes And Stainless Steel Pipes?
10-27