40Cr Chrome Hydraulic Cylinder Piston Rod

Product Detail

The material of the hydraulic cylinder rod usually is 45 # steel, which is quenched and tempered, after turning and grinding the surface, the chrome plating is 0.03 ~ 0.05 mm thick.

The piston rod is a connecting part which supports the work of the piston, most of which is used in the executive component of the oil cylinder and air cylinder, which is a moving part with high frequency and high technical requirements. Taking the hydraulic oil cylinder as an example, it consists of cylinder, piston rod (cylinder rod), piston and end cover.




Induction chrome hydraulic cylinder rod
Usage: Hydraulic Cylinder, Hydraulic Jack, Shock absorber
Supply condition: Ground and chrome plated
Steel Grade: CK45, AISI1045, 4140, 42CrMo4, 20MnV6, SUS304
OD Size: 6-250mm
Length: up to 12 meters
Chrome Thickness: 20 – 30 Micron
Surface Roughness: Ra:=0.2 micron and Rt= 2 micron
Straightness: =0.2 mm/m
Surface Hardness: 850 – 1150 HV
Corrosion Resistance: Test in natural salt spray according to ASTMMB117-96 hours results evaluation according to ISO4540 Rating 8-10
Weld Ability: Good
Packing: Anti rust oiled surface on material and each rod to be packed in paper tubes, then in wooden case with steel frame.





Diameters	18-250mm
Length	3000mm/6000mm
Steel grade	CK45/JIS 45C
Tolerance	ISO f7
Chrome thickness	20µm (min)
Hardness of the chrome layer	850HV (min)
Roughness	Ra 0.2µm (max)
Straightness	0.2/1000mm
Mechanical properties (ck45)	Yield strength=320Mpa Tensile strengh=580Mpa Elongation=15%




Hard chrome plated bars Supply condition

Hard chrome plated
Induction hardened
Quenched & Tempered
Induction hardened with Q%T




Hard chrome plated bars Corrosion resistance
Min 120hours NSS Rating 9
Test acc.To ISO 9227 and ISO 10289 for the evaluation of the results.

Induction hardness	50-55HRC
Induction layer	1.7-2.5mm




Trict contract auditing invloved all departments to assure the feasibility of each order.
Process design and validation before bulk production.
Strictly control on all raw and auxiliary materials, All raw materials reach the world advanced level.
On-site inspection to all processes, inspection record keep traceable for 3 years.




FAQ:
1.Q: If i will need to stay in your place for few days, is that possible to book the hotel for me?
A: It's always my pleasure, hotel booking service is available.
2.Q: Can you send me samples?
A: Our product is Steel pipe, we can send you samples and catalog, warmly welcome you to come visit our company.
3.Q: Which level of quality are your products?
A: We have got ISO9000 quality system certification
4.Q: May i know which payment will be accepted by your company?
A: So far 100%T/T before shipment, and 30% deposit paid by T/T, balance paid by L/C are available.