YUTONG INDUSTRY/STKM13C Seamless Honed Tube/ Large bore cylinder barrel ...

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The Hardness Of Ck45 induction hardened Chrome Rod

  Induction hardening  is a non-contact process used for the surface hardening of steel and other alloys. The parts to be treated are placed inside a copper coil and heated above their transformation temperature by applying an alternating current to the coil. The   cylinder rod   is then quenched to retain the enhanced properties of the steel alloy. During this process, the   induction hardened chrome rod   core remains unaffected and its physical properties remain the same. CK45 is a medium tensile carbon steel supplied in the turned, induction hardened and straightened, precision ground, polished, chrome plated and final polished condition, with a typical base metal tensile strength of 670 Mpa, an induction hardened case of 3.2mm thick approx. to Rc55-65, plus a typical hard chrome plated surface hardness of HV 1000 - 1150.Characterised by an extremely smooth surface finish with excellent wear and corrosion resistance, supported by an induction harde...
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WHY CLIENT LIKES WUXI YUTONG E355 HONED TUBE

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  E355 Honed Tube is well known as ST52 E355 cylinder barrel in hydraulic industries. Honed pipes/ Skived & Roller Burnished Tubes are the most important material of manufacturing hydraulic cylinders. As one of the leading hydraulic cylinder honed tube suppliers and manufacturers, Wuxi YUTONG  has been supplying and exporting  honed tube and honed cylinder barrel for almost 20 years. We produce honed steel tubes and skived roller burnished tubes used for hydraulic cylinder or pneumatic cylinder with high quality & good prices.Imperial sizes & metric sizes available. The Specifications of Wuxi YUTONg E355 Honed Tubes Material : E355 ST52 Delivery Condition : BK, BK+S, GBK, NBK ID Size  : 20mm – 1500mm Length : max 16m Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Straightness : ≤ 0.5/1000 Roughness : 0.2-0.4 u Tolerance EXT : DIN2391, EN10305, GB/T 1619,GOST 8731,GOST 1050,GOST4543 Tolerance INT : H7,H8,...
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MANUFACTURING PROCESS OF PRECISION COLD DRAWN TUBES

  Precision cold drawn tube   is the carbon, alloy or stainless steel pipe with high precision sizes. Usually it has been made through hot rolling or cold drawn (cold rolling) processes. So precision pipe is a kind of seamless pipe.International standard for precision pipe is   DIN 2391 , which is applied with European standard.As a matter of fact, more steel pipe standard could applied for the precision pipe. Includes DIN2445, EN10305, DIN1630, DIN1629, ASTM A106, ASTM A179, JIS G3445Materials available with 10#, 20#, 35, 45, 40Cr, 25Mn. 37Mn5, St35(E235), St37.4, St45(E255),  St52(E355 ) and etc. For hot rolling precision steel pipe, tolerance of OD is +/- 0.1%.For  cold drawn precision tubes , tolerance allowed in below conditions: Diameters 6mm to 10mm, normal tolerance condition +/- 0.2%, premium tolerance condition +/- 0.15%. 10mm to 30mm, normal tolerance condition +/- 0.4%, premium tolerance condition +/- 0.2%. 30mm to 50mm, normal tolerance condition +/...
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