| Payment Terms | L/C, T/T, Western Union | 
| Supply Ability | 500 sets per day | 
| Delivery Time | 15-25days after PO confirmed | 
| Packaging Details | 10-50 PCS in one carton or plastic blister tray, outside wooden pallet or wooden box. | 
| Outer Diameter | 12.5MM | 
| Total Length | 270MM | 
| OD of one end | M8 X 1.25 | 
| OD of another end | M10 X 1.25 | 
| Material | S 45 C | 
| HRC | > 48 | 
| Surface roughness | Rz0.2~0.4 / Ra0.1max | 
| Salt spray | 48hrs - 120hours(Chromed) | 
| Brand Name | XIAYI | 
| Model Number | K25-50-1209-5 | 
| Certification | IATF16949 | 
| Place of Origin | NINGBO | 
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 500 sets per day | 
| Delivery Time | 15-25days after PO confirmed | Packaging Details | 10-50 PCS in one carton or plastic blister tray, outside wooden pallet or wooden box. | 
| Outer Diameter | 12.5MM | Total Length | 270MM | 
| OD of one end | M8 X 1.25 | OD of another end | M10 X 1.25 | 
| Material | S 45 C | HRC | > 48 | 
| Surface roughness | Rz0.2~0.4 / Ra0.1max | Salt spray | 48hrs - 120hours(Chromed) | 
| Brand Name | XIAYI | Model Number | K25-50-1209-5 | 
| Certification | IATF16949 | Place of Origin | NINGBO | 
| High Light | shock absorber rod ,hydraulic piston rod | ||
12.5mm coaxiality 0.05 Shock Piston Rod with Chrome Plated HRC35-65 for automotive
Descriptions of Chrome Plating Piston Rod for Shock Absorber
| Outer Diameter | Ø12.5(-0.01/-0.03) | 
| Total Length | 270mm | 
| Steel Material | CK45/ ST52/ 20MnV6/ 42CrMo4/ 40Cr/ bearing steel/ stainless steel | 
| Tolerance | ISO f7 | 
| Chrome thickness | 20~30micron | 
| Hardness of the chrome layer | 950 HV Min | 
| Roughness | Ra 0.2micron (max) | 
| Straightness | 0.2/1000mm | 
| Yield Strength | ≥350 MPa | 
| Tensile Strength | ≥580 MPa | 
| Elongation | ≥ 15% | 
|  			 
 Supply condition  |  			1. Hard Chrome Plated | 
| 2. Induction Hardened | |
| 3.Quenched & Tempered | |
| 4.Induction hardened with Q&T | 
Manufacturing Main Process description:
 1. Hydraulic Steel Raw Material Cutting
 2. CNC Machining + additional broaching and milling operations
 3. Induction Hardening
 4. Chrome Plating
 5. Dehydrogenation and Tempering
 6. Polish and Superfinish Polish
 7. 100% Inspection
 8. Craft Boxes and Wooden Case Packaging
Chemical Composition
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% | 
| Ck45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | |
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | 0.02-0.15 | |
| 20MnV6 | 0.17-0.24 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 | 
| 42CrMo4 | 0.38-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 | 
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 | 
Mechanical Properties
| Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION | 
| CK45 | 610 | 355 | 15 | >41J | NORMALIZE | 
| CK45 | 800 | 630 | 20 | >41J | Q + T | 
| ST52 | 500 | 355 | 22 | NORMALIZE | |
| 20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE | 
| 42CrMo4 | 980 | 850 | 14 | >47J | Q + T | 
| 40Cr | 1000 | 800 | 10 | Q + T | 
Description:
| Surface treatment | Blackening, polishing, anodize, chrome plating, zinc plating, nickel plating, grinding… | 
| Quality Assurance | IATF16949:2016 certified/SGS/TUV | 
| Drawing formats | Solid works, Pro/Engineer, AutoCAD, UG, PDF | 
|  			 
 
 
 Equipment used  |  			Japan 5-axis TSUGAMI-B-038T CNC turing machine | 
| Japan 4-axis GAMA DMN-650 machining center | |
| Cylindrical Bore Grinders | |
| Wire EDM | |
| Magnetic grinding machine/ grinding Vibration machining | |
| Oven | |
| Ultrasonic cleaning machine | |
| Vacuum packing machine | |
|  			 
 
 
 
 
 Inspection device  |  			VMS2.5d measuring machine | 
| Japan Mitutoyo tool microscope | |
| Japan Mitutoyo digimatic micrometer | |
| Japan Mitutoyo hardness tester | |
| Japan Mitutoyo calipers | |
| Japan Mitutoyo dial indicator | |
| Japan Mitutoyo height measuring tool | |
| Japan Mitutoyo tubular inside micrometer | |
| Japan Marble platform | |
| Go No Go gauge | |
| Electronic digital display caliper Ring gauges | |
|  			 
 Industry used  |  			Machinery; heavy duty equipment; electronic device; Auto spare parts; optical telecommunication… | 
Advantage of Product
 1)Professional & skilled, reliable.
 2)One-stop total solution
 3)ready stock goods with fast delivery
 4)Customizable: Non-standard sizes are also available
 5)Small quantity is acceptable
 6)Cash back: Refund or replacement for any product faulty
Picture:
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Company Details
Business Type:
Manufacturer,Importer,Exporter,Seller 
Year Established:
2006 
Total Annual:
1500000-4000000
Employee Number:
100~200 
Ecer Certification:
Verified Supplier 
XIAYI, founded in 2006, was set up in a beautiful city Ningbo, which is closed to Ningbo seaport and airport. XIAYI is a specialized factory that is engaged in producing auto spare parts, designing and manufacturing electromechanical & machinery parts and related automatic equipment. XIAYI has a... XIAYI, founded in 2006, was set up in a beautiful city Ningbo, which is closed to Ningbo seaport and airport. XIAYI is a specialized factory that is engaged in producing auto spare parts, designing and manufacturing electromechanical & machinery parts and related automatic equipment. XIAYI has a...
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