CK20 Cold Drawn Tube
CK20 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 & Delivering1. In bulk (Large OD)2. In bundle with steel strips (Small OD)3. With woven cloth4. A per customer's requirementsAbout USApplicationSteel pipes can be used in many areas,Website:, such as Piling project, Heat-supply project, Conveying drinking water, drainage, coal gas, fuel gas, mine slurry and other low & middle pressure fluids, API5L Petroleum and natural gas pipeline, Chemistry industry, Electric power engineering circulating pipe and so on.
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