Datong Hydraulic

  CK45 Cylinder piston rod is a very important part in hydraulic cylinder working smoothly,hard chrome plating a piece of precision equipment such as a cylinder rod is a painstaking and methodical process. As one of the leading CK45 chrome plated bar suppliers and manufacturers, DTONG   GROUP   has been supplying and exporting CK45 hard chrome bar and hard chrome rod for almost 20 years with high quality & good prices.Imperial sizes & metric sizes available. The Hard Chrome Plating Process: 1. Inspection The  CK45 cylinder chrome rod  is inspected during the initial evaluation to determine the condition prior to the chroming process. An inspector will make note of any signs of corrosion, pitting, marring, damage, cracking or flaking. The presence of any of these conditions will be taken into account during the re-chroming process. 2. Grinding & Stripping Old material on the  hydraulic cylinder rod  must be removed before new chrome can be a...

  42CrMo4 round bar   is a heat treatable steel which contains at least 0.9%Cr,0.15%Mo as strengthening elements.After quenched and tempered, It obtains high strength, good low-temperature impact toughness with a typical tensile strength of 900 -1200 N/mm2. 42CrMo4 steel has better performance than 34CrMo4 steel due to the higher carbon and chromium content. Similar to  AISI 4140 ,only a little difference in Mn,Cr content.This material also has good machinability,good wear-resistance,but the temper brittleness is not obvious,and poor in weldability. CHEMICAL COMPOSITION OF 42CRMO4 ROUND BAR Grade C Si Mn Cr Mo P S 42CrMo4/1.7225 0.38-0.45 ≤ 0.4 0.6-0.9 0.9-1.2 0.15-0.3 ≤ 0.025 ≤ 0.035 42CrMoS4/1.7227 0.38-0.45 ≤ 0.4 0.6-0.9 0.9-1.2 0.15-0.3 ≤ 0.025 0.02-0.04 RELEVANT STANDARDS OF 42CRMO4 STEEL BAR USA UK China Japan France Russia 4140 EN19/708M40 42CrMo SCM440 42CD4 42HM APPLICATIONS OF  42CRMO4 ROUND BAR 42CrMo4 has high strength and wear-resistance,widely used in m...