Product details
High Dimensional Precision: Tolerance up to IT7-IT13, OD ±0.03mm, WT ±5%, far more accurate than hot-rolled pipes.
Mirror Smooth Surface: Ra ≤1.6μm, no oxide scale, clean inner/outer walls for easy machining & coating.
Enhanced Mechanical Properties: Cold-worked for 30% higher tensile strength (≥600MPa), better fatigue resistance & high-pressure performance.
Seamless & Uniform Structure: No weld seams, consistent strength, zero leakage risk under high pressure.
Wide Size & Material Range: OD 6-219mm, WT 1-30mm; 10#,20#,Q235B,Q345B,St35,St52,40Cr etc..
International Standards Certified: Compliant with GB/T 3639, ASTM A519, EN 10305, DIN 2391.
Strict Quality Control: Eddy current test, straightness inspection, 100% dimension check before delivery.





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Step 1
Payment and order readiness
Minimum order: 1 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
5 days
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Step 3
Packaging and dispatch
Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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