Precision Carbon Steel Tubes for Machine Structural Purposes  

Product Name: JIS G3445 STKM11A STKM12A STKM13A  Precision Carbon Steel Pipes for Machine Structural Purposes Material: STKM11A, STKM12(ABC), STKM13(ABC) Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m 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 or Cold Rolling, On line inspection 5. Heat Treatment:BKS, GBK, NBK 6. Straightening/Cutting to specified length/Finished Measuring Inspection 7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc. 8. Packing and Stocking.   100% Eddy Current Testing. 100% Size Tolerance Checking. 100% Tube surface checking to avoid surface defects. Product Name JIS G3445 Precision Carbon Steel Pipes for Machine Structural Purposes…