1.The specification of Hydraulic Cylinder Piston Rod Size:脴 6-300mm Length:1m -9m Material:CK45/ ST52/ 20MnV6/ 42CrMo4/ 40Cr/ bearing steel/ stainless steel ToleranceISO f7 Chrome thickness:20~30micron Hardness of the chrome layer:800HV(min) Roughness:Ra 0.2micron (max) Straightness:0.2/1000mm Yield Strength鈮?50 Mpa Tensile Strength鈮?80 Mpa Elongation鈮?15% 2.The Chemical Composition of Hydraulic Cylinder Piston Rod MaterialC%Mn%Si%S%P%V%Cr% Ck450.42-0.500.50-0.800.17-0.37鈮?.035鈮?.035 鈮?.25 ST52鈮?.22鈮?.6鈮?.55鈮?.04鈮?.040.02-0.15 20MnV60.17-0.241.30-1.700.10-0.50鈮?.035鈮?.0350.10-0.20鈮?.30 42CrMo40.38-0.450.50-0.800.17-0.37鈮?.035鈮?.0350.07-0.120.90-1.20 40Cr0.37-0.450.50-0.800.17-0.37鈮?.035鈮?.035 0.80-1.10 3.Our service 1. Price: FOB Qingdao or CIF & CFR Price. 2. Delivery time: within 30 days. 3. Packing: Plastic cloth pakage with Bundle. Both end caps. 4. Marking: on request. 5. Mill MTC: Certificate stamped by Mill鈥檚 inspection Authority. 6. Payment: 30% advance and balance again BL copy. 7. Negotiable Documents: One set of commercial Invoice, Packing list. Bill of Lading, Mill Test Certificate. CO. 8. Trade Assurance order is welcomed.Hydraulic Cylinder Shaft price website:http://www.cncoraltech.com/drawn-bar/hydraulic-cylinder-shaft/