What is Steel Pipe Certification

Certification of steel pipe, we also called MTC. It means a Mill Test Certificate. It also called mill test report (MTR), or certified mill test report. Someone called it certified material test report, inspection certificate, certificate of the test.

Steel pipe MTC is a quality assurance document used in the metals industry. It certifies a material’s chemical and physical properties. MTC states a product made of metal (steel) compliance with an international standards.

Mill here refers to an industry that manufactures and processes raw materials. As an LSAW steel pipe manufacturer, we issue a Material Test Report or Mill Test Report. To confirm that the product meets the chemical analysis and mechanical properties specification.

The MTC will contain all relevant data to the product and will go with the product through its life-cycle.

Data in steel pipe MTC shows as below:

• (1) Steel pipe MTC date; (2) MTC No.; (3) Contract No.;
• (4) P.O. No.;  (5) Certificate Date; (6) Producing method (like JCOE, ERW, SSAW, and etc.);
• (7) Raw material name and specification (Material size, weight, identification, and grade);
• (8) Heat No. (Material heat number, which ties back to the processing batch);
• (9) Steel pipe sizes, weight, quantity (according to the data in the contract);
• (10) Chemical Composition (including the content of elements such as C, Mn, P, Sulfur, Cr, Ni, Mo, Cu, Al, Nb, Ti, and CEV, etc.);
• (11) Mechanical properties (Mechanical properties like tensile strength, yield strength, and elongation);
• (12) Hydro test pressure and holding time;
• (13) NDT; (14) Impact Test; (15) Drop-Weight Tear Test; (16) Guided-Bend;

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