ST52 Rolled Tube

Hot Sale ST52 E355 Rolling TubeProduct Specification1.Types:honed tubes,Website:http://www.leonhydraulic.com,skived and roller burnished tubes.2.Manufacture method:Cold rolled, Hydraulic cold drawn.3.Internal surface treatment method:honing or skiving and roller burnishing.4.Size range:40mm*30mm-325mm*300mm5.Standard&material:EN10305-1 E355,C45E,34CrMo4,42CrMo4,DIN2391-2 ST52, ST52.3,ST52.4,ASTM A519 SAE1020,SAE1045,SAE1026,SAE4130,SAE4140,etc.6.Delivery condition:BK(+C),BKW(+LC),BKS(+SR),GBK(+A),NBK(+N).7.OD tolerance:as per DIN2391-1,EN10305-1,ASTM A519 or as per customer's requirement.8.ID tolerance: H7,H8,H9,H10 or given by customer.9.Roughness of internal surface:0.35um max for honed tubes,0.25um max for skived&roller burnished tubes.10.Wall Thickness tolerance (eccentricity):+/-5%Mechanical PropertiesChemical composition requirement of E355 material:ElementCSiMnPSContent (%)0.22% max0.55% max1.60% max0.025% max0.025% maxMechanical properties of E355 tubes:BKBKWBKSGBKNBKTensile strength:640 Mpa min580 Mpa min580 Mpa min450 Mpa min490Mpa-630MpaYield strength--450 Mpa min- 355 Mpa minElongation4% min7% min10% min22% min22% minDimension ToleranceSize of ID (mm)           ID ToleranceTolerance of wall thicknessH7 H8 H9 H10 H11 30+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 0Our Advantages 1):Durable,strict quality management and control,we are an ISO9001 enterprise.2):High precision machining equipment guarantee good quality.3):Smooth surface.No defects.Continuous skill improvements.4):We have design team to develop new skill and new products to meet customer's requirements 5):Good after-service,when customers have problems during use,we will surely try our best to solve them.6):High professional employees have good emergency-dealing ability during production.7):Surface treatment can be nickel,galvanized and painted,or based on the requirements of customers.Packing & Shipping1.In bulk (Large OD)2.In bundle with steel strips (Small OD)3.With woven cloth4.A per customer's requirementsAbout 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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