TORICH EN10305-1 2002 GB/T3639-2009 Cold Drawn Steel Tubes

Packaging: In wooden boxes with seaworthy packing.

Brand: TORICH

Transportation: Ocean,Land,Air

Place of Origin: China (Zhejiang)

Certificate: ISO9001,ISO14001,TS16949

Port: Shanghai,Ningbo

Product Description

Torich's Chemical assurance
1. Each lot of raw materials will be tested by spectrometer before put in storage.
2. 100%PMI the mother pipe to ensure we put right material.
2. 100%PMI the finished pipe again to ensure we produced right grade

Heat Treatment Assurance
A full-automatic natural gas furnace with 24 meters in length.The real temperature

tolerance could be within 10℃.

QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.