EN10305-1 E355 +N Automotive Steel Tubes 

EN10305-1 E355 +N Automotive Steel Tubes Precision Seamless Tubes Material: E235, E255, E355 Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Delivery Condition: +C, +LC, +SR, +A, +N Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc. Stable Quality with Comeptitive Price. +N(Bright Annealing) Heat Treatment, Surface is bright and smooth, without oxide scale Good Extending and Bending Ability. 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:+SR, +A, +N 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% Ed…