JIS G3101 SS400 Cold Rolled Steel Tube for General Structure Material: SS330, SS400, SS540
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
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 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.
JIS G3101 Carbon Steel Tubes for Structural Purposes
SS330, SS400, SS540
OD: 6-88mm, WT: 1-15mm
Bao Steel, Xingcheng Steel, Huai Steel, Zhongtian Steel