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370X305 E355 St52 Heavy Hydraulic Cylinder Cold Drawn Steel Pipe +Sr Bks1
Industrial Pipeline Pipes, Big Size Cold Drawn Tube, Honed Cylinder Tube
Wuxi Baiheng Metal Co., Ltd
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Product Description Description : cold drawn steel pipes, cold drawn tubes are precision tubes with exact tolerance on OD and ID. When hot finished tubes can not meet requirement on OD and ID tolerance, we will cold drawn the hot rolled tubes to get better tolerance. They are also called ready to hone or ready to skive tubes.Popular standard and steel grade:EN10305-1E355 E235 E410 E470 C45EDIN2391-1ST52 ST45 ST52.3ASTM A519SAE1020 SAE1045 SAE1026GB/T20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn Application: hydraulic cylinder, pneumatic cylinder,Jack, cylinder barrel,and and all pipes have requirement for tolerance.Manufacture Method: hot rolled and then cold drawn.Heat Treating Method/Delivery Condition:BKBKSGBKNBKQ+T+C+SR+A+NQ+TCold drawnStress relievedAnnealedNormalizedQUENCHED +TEMPERED Parameters: ManufacturemethodCylinder ID (mm)Length(m)Straightness(mm/m)Toleranceon IDRoughness(μm) Cold drawn40-420≤16M0.2-0.5Depends on requirement0.8-1.6cold drawn-honed40-42012M0.2-0.3H8-H90.2-0.8Cold drawn-skived & burnished40-4209M0.2-0.3H8-H9≤0.4 Mechanical property: Final SupplyConditionCold finished(Hard)(BK)Cold drawn and stress-relieved (BK+S or + SR)Hardness HBParametersT.SobN/mm2Elongationδ5%T.SobN/mm2Y.SOsN/mm2Elongationδ5%20# (A106B, ST45, E255)>=550>=8>=520>=375>=1217545#(CK45)>=650>=5>=600>=500>=10190Q345B(ST52, E355)>=640>=5>=600>=520>=1519025Mn>=640>=5>=600>=510>=1519527SiMn>=840>=5>=760>=610>=10220Chemical Properties:MaterialC%Mn%Si%S%P%20#0.17-0.230.35-0.650.17-0.37≤0.035≤0.035ST45≤0.21≥0.4≤0.35≤0.025≤0.025E255≤0.210.4-1.1≤0.35≤0.025≤0.02545#0.42-0.500.50-0.800.17-0.37≤0.035≤0.035Q345B≤0.20≤1.70≤0.50≤0.035≤0.035E355≤0.22≤1.6≤0.55≤0.025≤0.025ST52≤0.22≤1.6≤0.55≤0.04≤0.0425Mn0.22-0.290.70-1.00.17-0.37≤0.035≤0.03527SiMn0.24-0.321.10-1.401.10-1.40≤0.035≤0.035Part of size list (ID*OD)40*50 100*127 240*27340*55 110*130 250*26650*60 120*140 250*28050*63 120*145 250*30060*70 125*140 280*32360*73 125*145 280*32563*73 140*165 300*32063*76 140*168 300*35670*80 150*180 320*34070*82 160*184 320*35670*85 160*194 320*37080*90 170*200 350*37080*92 180*210 400*42080*95 200*216 80*100 200*220 90*102 200*232 90*105 200*245 100*114 220*250 100*121 220*273
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