Specifications

ASTM A53/A106B/API 5L Seamless Steel Tube
1.OD:1/2"-24"
2.WT:SCH10-SCH160
3.Standard:API, ASTM,DIN
4.Certificate:API,ISO

Production Flow:
1. Steel billet → heating → punching → head making → annealing → pickling → copper plating → cold drawing → semi-finished pipes → heat treatment → straightening → water pressure test → labeling → warehouse entry.
2. Round billet→ pickling→ cut off→ heating→ piercing→ pointing→ pickling→ cold-drawing (cold-rolling) → semi-finished pipe→ heat treatment→ physical chemistry test→ straightening→ corps end cutting off→ surface and size inspection→ eddy current inspection→ UT testing→ marking/painting/bundling→ warehouse/shipping
Each step is under strict control to ensure you a high quality pipe.

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