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CK45 Cold drawn seamless steel tubeProduct DisplayProduct ParametersProcessing formCylinder ID (mm)LengthStraightnessTolerance on IDWall thicknessInner hole roughnessCold Drawn48~325≤ 12m0.3~0.8mm/m±10%0.8~1.6µmHoning48~325≤/10m0.3~0.8mm/mH8~H9±10%0.3~0.8µmRolling50~250≤ /9m0.3~0.8mm/mH7~H9±10%0.01µmMechanical PropertiesSteel GradeTensile strength(σb N/mm2)Yield strength(σs N/mm2)Elongation(δ %)Hardness HB 20# ≥520≥470≥1217545#(CK45)≥600≥520≥1220716Mn(ST52)≥600≥520≥1519025Mn≥600≥510≥1519527SiMn≥800≥720≥10230Product ShowPacking
CK45 Cold Drawn Seamless Steel Tube