AISI4140 CK45 Hard Chrome Plated Rod Hydraulic Cylinder 1000mm

AISI4140 CK45 Hard Chrome Plated Rod Hydraulic Cylinder Rod

Detailed Product Description

• Material: CK45, SAE1045, 4140, 4340, JIS45C, 40Cr, 42CrMo
• Diameter: Φ 6-500 mm
• Length: max 16m
• Chrome layer: 20 microns (min)
• The hardness of the chrome layer: 800HV-1150HV
• Roughness: Ra ≤0.2u
• Straightness: ≤ 0.2/1000
• Diameter tolerance: ISO f7
• Roundness: the deviation of roundness is 50% of the diameter tolerance at the most.
• Supply condition: Hard chrome plated/ Hardened and tempered/ Induction hardened
• Packing: Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden case.

Detailed Description

1. CHEMICAL COMPOSITION

2.MECHANCIAL PROPERTIES

3. SUPPLY CONDITION

    Ground  and  chrome plated 

4. CHROME THICKNESS

     20 to 30 micron

5. SURFACE ROUGHNESS

     Ra≤0.2 micron and  Rt≤2 micro

6. TOLERANCES ON DIA

    ISO f7 on the diameter

7.OVALITY

Half of the tolerance ISO f7

8. STRAIGHTNESS

   ≤0.2MM/M

9. SURFACE HARDNESS

   850-1150HV (vickers 100g)

10.COHESION

   No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling 

   in water)

11 .POROSITY

     Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10

12 CORROSION RESISTANCE

     Test in natural salt spray according to ASTM B 117-72hours

     Results evaluation according to ISO 4540 RATING 7-10

13. WELDABILITY

      Good

14. PACKING

     Anti rust oil to be applied on material and each rod to be packed in paper sleeve

15. CERTIFICATE

     All certificate related with material heat treatment and plating is required

Our service idea: Devoted to both benefits is our persistent style, Satisfy clients’ needs is our eternal pursue

Heyi target: be the benchmark in the field of China pneumatic and hydraulic piston rod