CK20 Rolled Tube
CK20 Skived Rolling Burnished Hydraulic Cylinder TubeProduct SpecificationCylinder ID: 40mm-400mm Thickness:≥4mmMaterial: 20#(A106B,Website:),45#(CK45),16Mn(ST52,E355),25Mn,27SiMnStandard: GB/T8713-88 ISO4394/1-1980(EN0305,DIN2391)Rolling Tube for Hydraulic CylinderMaterial:ST52, CK45, 4140, 16Mn, 42CrMo, E355, Q345B, Q345D, Stainless Steel 304/316, Duplex 2205,etc.Delivery Condition:BK, BK+S, GBK, NBKID:20mm - 1500mmLength:max 13mType:Seamless, Cold DrawnStraightness:≤ 0.5/1000Roughness:0.2-0.4 uTolerance EXT:DIN2391, EN10305, GB/T 1619Tolerance INT:H7, H8, H9Protection:anti-rust oil on inside and outside surface, plastic caps in both ends.Packing:bundle with steel strip and knitting strip, or wooden case.Mechanical 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≥10230Dimension ToleranceSize of ID (mm)
ID ToleranceTolerance of wall thicknessH7H8H9H10H1130+0.021
0+0.033
0+0.052
0+0.084
0+0.130
0±5%>30-50+0.025
0+0.039
0+0.062
0+0.100
0+0.160
0>50-80+0.030
0+0.046
0+0.074
0+0.120
0+0.190
0>80-120+0.035
0+0.054
0+0.087
0+0.140
0+0.220
0>120-180+0.040
0+0.063
0+0.100
0+0.160
0+0.250
0>180-250+0.046
0+0.072
0+0.115
0+0.185
0+0.290
0>250-315+0.052
0+0.081
0+0.130
0+0.210
0+0.320
0>315-400+0.057
0+0.089
0+0.140
0+0.230
0+0.360
0Product ProcessPacking & Shipping 1. Bundle packing.2. Beveled end or plain end or varnished as your required.3. Painting varnish coating on the pipe.4. Plastic caps at ends.About USApplicationThe honing and finished rolling tube, have been widely used in many industries, such as hydraulic cylinder, petrochemical sand pumping vessel, shipping, construction machinery, mining machine, filling machine and agricultural machine,etc.
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