Steel Pipe & Tube

ERW, seamless and hollow sections for fluid transport, structures and machinery — galvanized and coated options available.

Steel pipes and square tubes stacked in a warehouse

Product Introduction

Our pipes come from certified Chinese tube mills with full traceability. Choose ERW for economy, seamless for pressure, and hollow sections for structures — with galvanized, 3LPE or painting systems applied before shipment.

Hydrostatic and NDT testing are available, and every shipment ships with an EN 10204 3.1 certificate.

ERW pipe: 1/2" – 24", ASTM A53 GrB, EN 10219, GB Q195–Q345
Seamless: 1/4" – 24", ASTM A106 GrB, API 5L GrB–X52
Square/rectangular tube: 10×10 – 500×500 mm

Request Pipe Quotation

📐 Square & rectangular tube full size list (black + galvanized) →

📖 Pipe schedule 40 vs 80: dimensions explained →

Specifications

Technical Specifications

Fluid, structural and mechanical applications covered.

Type	Standard	Grades	Range	Typical Use
ERW pipe	ASTM A53 GrB / EN 10219	GrA, GrB, S235–S355	1/2" – 24", SCH10–SCH80	Fluid, low-pressure lines
Seamless	ASTM A106 / API 5L	GrB, X42–X52	1/4" – 24", SCH40–SCH160	Pressure, oil & gas
Square tube	EN 10219 / GB	Q195–Q345, S235–S355	10×10 – 500×500 mm	Structures, frames
Surface	—	Hot-dip galvanized, 3LPE, paint	Per requirement	Corrosion protection

Applications & Service

Where Our Pipes Go

Typical Applications

Water, gas and fluid transport lines
Structural columns and scaffolding
Machinery and automotive components
Fencing, handrails and greenhouses

Packaging & Loading

Bundle weight 1–5 tons, steel straps
End caps on request
Container or bulk vessel loading

Quality & Testing

EN 10204 3.1 mill test certificate
Hydrostatic and NDT testing available
SGS / BV / TUV inspection on request

Order Information

MOQ: 5 tons (trial orders welcome)
Delivery: 7–15 days stocked, 20–30 days mill production
Payment: 50% T/T deposit, balance before delivery