ABOUT US
Threeway Steel Co., Ltd, is a world-class production and service provider with 32 years of steel pipe manufacturing, stocking, and exporting for the world’s energy industry and certain other industrial applications. Our manufacturing system integrates. 8 world-class submerged arc straight seam welded pipe production line, pipe hot-rolling and cold-forming, heat treatment, threading and finishing, making, warehouse in China, we also have our R&D network focus on enhancing our product portfolio and improving our Industry Operation Capability, Quality competitiveness, Cost control, Perfect integrated service capability is united by a passion for excellencelly promoting business growth.
You can contact us any way that is convenient for you. We are available 24/7 via fax or email. 
You can also use a quick contact form below or visit our office personally.
CUSTOMIZED SERVICE
Greasepaint - the atmospheric corrosion undemanding environment
Country paint
Phenol resin coating
Epoxy coatings
Polyurethane coatings
Polyethylene, polypropylene resin coating
Furan resin coating
Sphalt coating
Heavy anti-corrosion coatings
NEWS
ASTM A500 Round Tubes Vs. Square Tubes Vs. Rectangular Tubes: How Do Cross-sectional Shapes Affect Structural Design?
2026-09-15

The cross-sectional shape of structural steel tubing significantly influences its load-bearing performance. For ASTM A500 structural tubing, round, square, and rectangular shapes offer distinct advantages. Round tubes provide uniform torsional resistance and suit columns and trusses. Square tubes of

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2026-09-15
What Are The Differences between ASTM A500 And ASTM A1085/A1065? Comparison of Structural Steel Pipe Standards.
2026-09-14

ASTM A500, A1085, and A1065 are essential standards for structural steel pipes, but they serve distinct engineering purposes. ASTM A500 is the most widely used specification for general cold-formed welded and seamless HSS. ASTM A1085 is designed for higher-performance applications, offering enhanced

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2026-09-14
Are ASTM A671 Cryogenic Steel Pipes Used in Liquefied Natural Gas Projects?
2026-09-11

LNG projects operate at extreme cryogenic temperatures of -162°C, demanding piping materials with exceptional low-temperature toughness to prevent brittle fracture. ASTM A671 electric-fusion-welded steel pipe is a practical option for these demanding environments, as it is manufactured from pressure

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2026-09-11
What Are The Material Properties And Heat Treatment Requirements for ASTM A671 Steel Pipes?
2026-09-10

ASTM A671 steel pipe is an electric-fusion-welded (EFW) pipe manufactured from pressure-vessel-quality plate, engineered for high-pressure service at atmospheric and lower temperatures. Widely used in oil and gas, petrochemical, and power generation industries, it is ideal for demanding industrial p

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2026-09-10
Providing professional one-stop procurement service for customers with excellent quality, competitive price, convenient transportation, and timely delivery.
  22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC:410116
  sales@threewaysteel.com
  0086-0731-8867-8598                                             

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