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

All

Industry News

Company News

NEWS CENTER

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

Differences between T-series And P-series: Grade Correspondence And Non-interchangeability of ASTM A213 And A335
10-26

ASTM A213 T-series tubes and ASTM A335 P-series pipes both serve high-temperature applications but are not interchangeable. A213 covers seamless ferritic and austenitic alloy tubes for boiler, superheater, and heat-exchanger service, with common grades T11, T22, T91, TP304H, and TP316H. A335 covers

What Are The Differences And Different Applications between K55 Casing And L80 Casing Steel Pipe?
10-23

Selecting the right oil well casing grade is critical for wellbore stability, formation isolation, and safe production. K55 and L80 casing steel pipes differ in minimum yield strength, material requirements, and application suitability. K55, with a specified minimum yield strength of 55 ksi (379 MPa

Our Clients

Project Experience

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

Differences between T-series And P-series: Grade Correspondence And Non-interchangeability of ASTM A213 And A335
10-26

What Are The Differences And Different Applications between K55 Casing And L80 Casing Steel Pipe?
10-23

HOT PRODUCT

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CONTACT US

Project Experience

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

Differences between T-series And P-series: Grade Correspondence And Non-interchangeability of ASTM A213 And A335 10-26

What Are The Differences And Different Applications between K55 Casing And L80 Casing Steel Pipe? 10-23

HOT PRODUCT

QUICK LINKS

CONTACT US

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

Differences between T-series And P-series: Grade Correspondence And Non-interchangeability of ASTM A213 And A335
10-26

What Are The Differences And Different Applications between K55 Casing And L80 Casing Steel Pipe?
10-23